Order Code RL34162
Renewable Energy: Background and Issues for
the 110th Congress
September 6, 2007
Fred Sissine
Specialist in Energy Policy
Resources, Science, and Industry Division

Renewable Energy: Background and Issues for the
110th Congress
Summary
Renewable energy can be used to produce liquid fuels and electricity. A variety
of funding, tax incentives, and regulatory policies have been enacted to support
renewables as a means for addressing concerns about energy security, air pollution,
international competitiveness, and climate change. This report reviews the
background for renewables and describes the current congressional debate.
Budget and funding issues are key concerns. The Energy Policy Act of 2005
authorized several new renewable energy demonstration and deployment programs,
but most of them have not been funded. Both the House-passed (H.R. 2641) and
Senate Appropriations Committee-approved (S. 1751) energy and water development
appropriations bills for FY2008 would provide a major increase over the
Administration’s request for the Department of Energy’s renewable energy program.
The Administration has indicated that it intends to veto the appropriations bills due
to the increases and the lack of funding for the Asia Pacific Partnership.
Tax and regulatory policies are also at issue. The interaction of the federal
renewable energy electricity production tax credit (PTC) with state renewable
portfolio standard (RPS) policies has forged a strong incentive for wind energy
development. The major House-passed energy bill (H.R. 3221) would extend the
PTC for four years past its scheduled expiration at the end of 2008, and it would
establish a national RPS with a target of 15% by 2020. Further, it would establish
$2 billion in a new category of clean renewable energy (tax credit) bonds, extend for
eight years the 30% level for the commercial solar tax credit, and remove the dollar
cap on the residential solar tax credit. Also, H.R. 3221 would establish $15.3 billion
in revenue offsets from oil and natural gas provisions to support tax incentives for
renewable energy and energy efficiency. The major Senate-passed energy bill (H.R.
6) has no RPS or tax provisions.
The ethanol fuel issue has intensified. Corn ethanol production is rising rapidly,
but appears to be causing food price increases. Concerns about rising food prices and
apparent limits to the long-term potential for corn ethanol have brought a focus on
cellulosic ethanol. Cellulosic sources avoid the limits on corn and appear to have
much lower net CO emissions, but they require an extensive and costly conversion
2
process. The Senate-passed version of H.R. 6 would establish a modified renewable
fuels standard (RFS) that starts at 8.5 billion gallons in 2008 and rises to 36 billion
gallons in 2022. H.R. 3221 has no RFS provision.
Key challenges to the omnibus energy bills remain. First, there are significant
differences between H.R. 3221 and H.R. 6. Second, because the House and Senate
have passed different measures, further action would be required in at least one
chamber before a conference committee could be arranged. Third, concerns about
the oil and natural gas revenue offset provisions, and the lack of measures to increase
oil and gas production have led the Administration to threaten to veto each bill. (The
major provisions of these two bills are compared in CRS Report RL34135.)

Contents
History and Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Fuels Production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Electricity Production . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Action in the 110th Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Budget and Funding Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
EPACT Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Loan Guarantee Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Biofuels and Other New Program Authorizations . . . . . . . . . . . . . . . . . 5
FY2008 DOE Budget . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Administration’s Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Congressional Hearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
House Action (H.R. 2641) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Senate Action (S. 1751) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Tax Credit Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Renewable Energy Electricity Production Tax Credit (PTC) . . . . . . . . . . . . 8
Background and History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Current Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Revenue Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Impact on Resource Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Combined Impact with State Renewable Portfolio Standards . . . . . . . 12
Credit Design Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Credit Extension Debate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Solar Investment Tax Credits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Clean Renewable Energy (Tax Credit) Bonds . . . . . . . . . . . . . . . . . . . . . . . 16
Debate Over Revenue Offsets in Omnibus Energy Bill (H.R. 3221) . . . . . 18
Regulatory Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Renewable Portfolio Standard (RPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
State RPS Debate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Federal Tax Credit (PTC) Supports State RPS Policies . . . . . . . . . . . 19
Federal RPS Debate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Other Regulatory Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Wind Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Marine (River, Tidal, Wave, and Ocean) Energy . . . . . . . . . . . . . . . . 21
Renewable Fuels and Energy Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Corn Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Farm-Based Corn Ethanol Production . . . . . . . . . . . . . . . . . . . . . . . . . 22
Corn Ethanol Impacts and Debate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cellulosic Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Renewable Fuel Standard (RFS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
President’s “20-in-10” Alternative Fuels Goal . . . . . . . . . . . . . . . . . . 24
Senate-Passed H.R. 6 Proposal to Increase RFS . . . . . . . . . . . . . . . . . 24
Biofuels and Oil Imports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Administration’s Biofuels Initiative . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Farm-Related Biofuels Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Potential Oil Import Reductions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Climate Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
CO Emissions Reduction Estimates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2
Support for Renewables to Curb CO
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2
Legislation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
FY2007 Appropriations (P.L. 110-5, H.J.Res. 20) . . . . . . . . . . . . . . . . . . . 27
Omnibus Energy Bills (H.R. 3221 and H.R. 6) . . . . . . . . . . . . . . . . . . . . . . 28
Other Bills . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
List of Tables
Table 1. DOE Renewable Energy Budget for FY2007-FY2008 . . . . . . . . . . . . . 30
Table 2. Production Tax Credit Value and Duration by Resource . . . . . . . . . . . 31
Table 3. Production Tax Credit Claims, History and Projections . . . . . . . . . . . . 32
Table 4. Renewable Fuels Compared with Persian Gulf Imports . . . . . . . . . . . . 33

Renewable Energy: Background and Issues
for the 110th Congress
Renewable energy is derived from resources that are generally not depleted by
human use, such as the sun, wind, and water movement. These primary sources of
energy can be converted into heat, electricity, and mechanical energy in several ways.
There are some mature technologies for conversion of renewable energy such as
hydropower, biomass, and waste combustion. Other conversion technologies, such
as wind turbines and photovoltaics, are already well developed, but they have not
achieved the technological efficiency and market penetration that many expect they
will ultimately reach. Although geothermal energy is produced from geological
rather than solar sources, it is often included as a renewable energy resource (and is
treated as such in this report). Commercial nuclear power is not generally considered
to be a renewable energy resource.1
Despite fluctuating government policies since the 1970s, a combination of
incentives and high energy prices has enabled wind energy to gain a toe-hold in
electric power markets and allowed ethanol to secure a modest, but growing,
presence in motor fuels markets. Congress is now debating whether to provide
additional subsidies, incentives, and mandates to further expand renewable energy
use. This report describes the background and primary policy issue areas affecting
renewable energy, including budget and funding, tax incentives, electricity regulatory
initiatives, renewable fuels, and climate change.
History and Background
The energy crises of the 1970s spurred the federal government, and some state
governments, to mount a variety of renewable energy policies. These policies
included support for research and development (R&D), technology demonstration
projects, and commercial deployment of equipment. For renewable energy, these
policies included a focus on the production of both liquid fuels and electricity.
Fuels Production
The Energy Tax Act of 1978 established a 4 cents per gallon excise tax
exemption for ethanol blended into gasoline. This incentive expired, and was
extended, several times during the 1980s and 1990s. In some cases, the incentive
1 For further definitions of renewable energy, see the National Renewable Energy
Laboratory’s website information on “Clean Energy 101” at [http://www.nrel.gov/learning/].

CRS-2
was modified at the same time that it was extended.2 The Energy Policy Act of 1992
extended the excise tax exemption and created a tax deduction for clean-fuel vehicles
that included those using 85% ethanol (E85). It also established a requirement that
federal, state, and other vehicle fleets include a growing percentage of alternative-
fueled vehicles, including those using ethanol. In 2000, the General Accounting
Office (GAO)3 reported that the excise tax exemption and the alcohol fuel tax credits
had been the most important incentives for renewable fuels.4 By the time that the
Energy Policy Act of 2005 (EPACT) was enacted, a variety of tax, grant, loan, and
regulatory provisions had been established for renewable fuels. This included some
17 programs spanning five agencies. At present, the major tax incentives are a 51
cents per gallon excise tax exemption for ethanol blends, a $1 dollar per gallon tax
credit for agri-biodiesel (50 cents per gallon for recycled biodiesel), and the
alternative motor vehicle tax credit.5 However, some believe that the Renewable
Fuel Standard (RFS) set by EPACT Section 1501 — which requires that motor fuels
contain increasing amounts of renewable fuel each year through 2012 — may now
be the most important policy supporting renewable biofuels.6
Electricity Production
The Public Utility Regulatory Policies Act (PURPA, Section 210) created a
policy framework that required electric utilities to purchase electricity produced from
renewable energy sources. PURPA also empowered the states to set the price for
such purchases. PURPA aimed to reduce oil use for power production, encourage
the use of renewable energy for power production, and to structure a new dimension
of competition to help keep electricity prices down. In the early 1980s, under the
influence of PURPA regulation, a convergence of federal and state policies launched
commercial deployment of wind and solar energy in California. In particular, the
development of early wind farms was driven mainly by a combination of federal and
state investment tax credits for wind energy.
As the new wind industry developed, two emerging aspects stimulated further
policy changes. First, some firms took advantage of the investment tax credits by
capturing the tax benefits at the front end and leaving wind machines that operated
poorly or not at all. Recognition of this problem eventually led to the creation of a
production-oriented tax credit. Second, in order to obtain third party financing, wind
2 A History of Ethanol. [http://e85.whipnet.net/index.html]
3 This is now the Government Accountability Office.
4 GAO. Petroleum and Ethanol Fuels: Tax Incentives and Related GAO Work. Letter to
Senator Tom Harkin. September 25, 2000. (B-286311) 3 p. [http://www.gao.gov/new.items/
rc00301r.pdf]
5 The 2004 Jobs Bill (P.L. 108-311) revised and extended the excise tax exemption for
ethanol, and created the incentives for biodiesel fuel. EPACT extended the ethanol and
biodiesel incentives. It also sunset the deduction for clean-fuel vehicles and created a new
credit for alternative motor vehicles. For more details see CRS Report RL33572, Biofuels
Incentives: A Summary of Federal Programs
, by Brent Yacobucci.
6 For more about ethanol fuels, see CRS Report RL33290, Fuel Ethanol: Background and
Public Policy Issues,
by Brent Yacobucci.

CRS-3
farm developers needed to secure agreements for power purchases that fixed the price
for a long-term (10 years or more) period. This led the California Public Utility
Commission to promote the development of “standard offer” contracts. These
contracts reduced investment risk, established stable revenue streams, and helped
launch early wind farm developments.
Oil and natural gas prices slumped during the mid-1980s, and declined more
steeply in the late 1980s. Meanwhile, Congress let the residential solar investment
tax credit expire in 1985. Funding for Department of Energy (DOE) renewable
energy R&D programs also declined, reaching a low point in 1990.
In late 1990 and early 1991, the Persian Gulf War re-ignited interest in
renewable energy. Other nations, notably Japan and Germany, began to undertake
more aggressive policies to subsidize renewables, especially wind and solar
technologies. In the United States, Congress began to increase funding for the
Department of Energy (DOE) renewable energy R&D program. In 1992, the United
States became a signatory of the United Nations Framework Convention on Climate
Change (UNFCCC). This action forged a new environmental motive for support of
renewable energy. These national interests were reflected in the Energy Policy Act
of 1992 (P.L. 102-486). For electricity, this law made permanent the 10% business
investment tax credit for solar and geothermal equipment. It also created a new
renewable energy electricity production tax credit of 1.5 cents per kilowatt-hour
(kwh) for wind farms and closed-loop (energy crop) biomass.
Climate change concerns spurred other industrialized nations to strengthen
renewable energy policies and programs. Through the 1990s, concern about global
climate change became an increasingly important motive in the European Union
(EU), Japan, and other countries for raising renewable energy production goals and
providing incentives to support commercial deployment. The Kyoto Protocol set
emission reduction targets for carbon dioxide (CO ) and other greenhouse gases
2
(GHG). After signing the Protocol, these nations intensified their efforts for
commercial deployment of renewable energy. In the United States, concern about
climate change was largely offset by a concern about the potential effect of the Kyoto
CO emission reduction targets on economic growth and competitiveness. As a result
2
of this economic concern, the United States has taken a more limited effort than
many other industrialized nations to support renewable energy as a strategy for
addressing climate change. The federal government has continued support for
existing funding and subsidies. However, aside from the previously mentioned
policies, it has not established major new policies and programs like the feed-in tariff
in Germany or the European Union’s target for producing 20% of its energy from
renewables.7
7 A feed-in tariff directs a utility to purchase electricity generated by renewable energy
producers in its service area at a tariff determined by public authorities and guaranteed for
a specific period of time. The price and term can vary by technology and over time. For
more details, see California Energy Commission, Notice of IEPR Committee Workshop on
“Feed-In” Tariffs,
May 21, 2007. On the Commission’s website at
[http://www.energy.ca.gov/2007_energypolicy/notices/2007-05-21_committee_worksho
p.html]

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State action on renewable energy has often supplanted federal action or created
models for new federal policies. As one example, California has implemented very
aggressive programs for renewable energy. In the mid-1990s, the advent of electric
industry restructuring led California state policymakers to create a public goods
charge on ratepayer electricity use. Part of the resulting revenue was used to fund
renewable energy development and deployment programs. Also, California’s
electricity shortages in 2000 and 2001 prompted the state to expand its renewable
energy programs. Motivated by concern over climate change, California has recently
adopted more aggressive actions for renewables. This includes a $3 billion solar
deployment initiative, and an increase of its renewable portfolio standard to 33% of
total electricity production by 2020.
Action in the 110th Congress
Economic and environmental concerns — namely energy security, international
competitiveness, high energy prices, air pollution, and climate change — are now
driving policy proposals to support renewable energy R&D and market deployment.
In the 110th Congress, more than 100 bills have been introduced that would support
renewable energy.8 In particular, omnibus energy efficiency and renewable energy
legislation (House-passed H.R. 3221 and Senate-passed H.R. 6) and appropriations
bills (H.R. 2641, S. 1751) would greatly increase support for renewable energy.9
Budget and Funding Issues
EPACT Implementation
As part of the strategy to address energy security, climate change, and other
national interests, the Energy Policy Act of 2005 (EPACT, P.L. 109-58) contains
several provisions that authorized new programs and spending for renewable energy.
Many of these provisions have either gone unfunded or have been funded below the
authorized level.
Loan Guarantee Program. Title 17 of EPACT created a DOE loan
guarantee program for certain energy technologies that could improve energy
security, curb air pollution, and reduce greenhouse gas emissions.10 Innovative
renewable energy power plants and fuel production facilities would be eligible for a
federal loan guarantee covering up to 80% of construction costs.11 In August 2006,
8 For a comprehensive list of renewable energy bills, see CRS Report RL33831, Energy
Efficiency and Renewable Energy Legislation in the 110th Congress
, by Fred Sissine.
9 For a side-by-side comparison of the omnibus bills, see CRS Report RL34135, Omnibus
Energy Efficiency and Renewable Energy Legislation
, by Fred Sissine.
10 Information about the DOE Loan Guarantee Program is available at
[http://www.lgprogram.energy.gov/index.html].
11 The program authorization applies to other types of innovative energy-related
technologies, including nuclear, coal, energy efficiency, vehicles, carbon sequestration, and
(continued...)

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DOE issued guidelines for an initial $2 billion in loan guarantees, which would
include biomass, solar, wind, and hydropower projects.12 The FY2007 continuing
appropriations bill (P.L. 110-5, H.J.Res. 20) increased the Loan Guarantee Program
authority to $4 billion. It also provided $7 million for program operating costs, and
required that DOE prepare a rulemaking to implement the program.13 DOE’s
FY2008 budget request seeks $9 billion for program authority and $8.4 million for
operating costs.14 The requested authority includes $4 billion for biofuels projects
and $1 billion for renewable energy power production projects.
At both House and Senate energy committee hearings on the DOE FY2008
budget request, concerns were raised that the Loan Guarantee Program had not been
implemented. Many view this program as a key element of EPACT that addresses
climate change and supports the commercial development of biofuels, such as
cellulosic ethanol. An additional concern was voiced that DOE’s request for $9
billion in program authority is too small to achieve the environmental goals of the
program.
The House approved $2.4 million for administrative costs of the Loan Guarantee
Program in FY2008.15 Also, it recommended that the 2008 loan authority be limited
to $7 billion, including $4 billion for biofuels and other clean transportation fuels and
$1 billion for electricity transmission and renewable energy power generation
facilities. In contrast, the Senate Appropriations Committee recommended funding
the full request for $8.4 million for administrative costs and proposed no limit on the
amount of loan guarantees.16 However, the Committee expressed concern that
DOE’s draft rulemaking proposes to limit the federal guarantee to 90% of the debt
portion. The Committee found that to be inconsistent with EPACT, which it says
calls for the federal government to guarantee up to 100% of the debt portion.
Biofuels and Other New Program Authorizations. Several biofuels
programs authorized by EPACT have not been funded, including sugar cane ethanol
(§208), biodiesel (§757), advanced biofuels (§1514), and cellulosic ethanol (§942,
§1511, §1512). Unfunded biomass provisions include forest biomass (§210),
11 (...continued)
pollution control equipment.
12 DOE. Loan Guarantee Solicitation Announcement. August 8, 2006. The solicitation
included hydrogen, coal, electricity transmission, industrial energy efficiency, and other
types of projects. [http://www.lgprogram.energy.gov/Solicitationfinal.pdf]
13 DOE issued a proposed rule for the Loan Guarantee Program on May 16, 2007.
[http://www.lgprogram.energy.gov/NOPR-fr-5-16-07.pdf]
14 The Loan Guarantee Program funding request appears on pages 702-711 of volume 4 in
the DOE FY2008 Budget Request. [http://www.mbe.doe.gov/budget/08budget/Content/
Volumes/Vol_4_SC_DA.pdf]
15 The House Appropriations Committee noted in its report (H.Rept. 110-185, p. 89) that
P.L. 110-5 (H.J.Res. 20) had provided initial funds for the Loan Guarantee Program in
FY2007, after the FY2008 DOE budget request had been submitted. DOE’s FY2007
Operating Plan
allocates $7 million from P.L. 110-5 for the program.
16 S.Rept. 110-127, p. 148-149.

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biomass research and development (§941g), and bioenergy (§971d). Additionally,
residential and small business renewable rebates (§206c) and insular areas (§251,
§252) have not been funded. Provisions for technologies that would address climate
change by reducing greenhouse gas emissions (§1601, §1602) also remain unfunded.
Distributed energy (§921) and renewable energy (§931) are funded below authorized
levels.
FY2008 DOE Budget
Administration’s Request. In his 2006 State of the Union address,
President Bush announced the launch of the American Competitiveness Initiative
(ACI) to stimulate long-term economic growth. This would be achieved mainly by
increased promotion of R&D and technological innovation. A key component of the
ACI is the Advanced Energy Initiative (AEI), which DOE says “aims to reduce
America’s dependence on imported energy sources.” AEI’s Biofuels and Solar
America initiatives are funded under renewable energy programs in DOE’s Office of
Energy Efficiency and Renewable Energy (EERE). The goals of the Solar America
Initiative are to reduce the cost of photovoltaics (PV) technology, increase its
deployment, and help reduce natural gas demand for electric power generation. The
goal of the Biofuels Initiative is to develop transportation fuels, such as cellulosic
ethanol, from agricultural waste products and energy crops such as wood chips,
switchgrass, and plant stalks.
In the 2007 State of the Union address, the President reasserted the importance
of “investing in new methods of producing ethanol” and set forth a goal to “reduce
gasoline usage in the United States by 20% in the next ten years.”17 To reach this
goal he called for an alternative fuels production target of 35 billion gallons by 2017.
This target, he noted, is nearly five times the 7.5 billion gallon target in the
Renewable Fuels Standard (RFS) set by EPACT.18 In support of the 35 billion gallon
goal, the FY2008 DOE budget request for renewable energy programs proposes
funding for the Biofuels Initiative under the Biomass/Biorefineries Program.19 The
goal is to “help make cellulosic ethanol cost competitive by 2012 using a wide array
of regionally available biomass resources.” Also, the request seeks funding for the
Solar America Initiative under the Solar Energy Program. This funding would “help
accelerate the market competitiveness of solar electricity.” It also aims to “lower the
17 The White House. State of the Union 2007. p. 3. [http://www.whitehouse.gov/news/
releases/2007/01/20070123-2.html]
18 Because the President’s statement specified “alternative fuels,” not “renewable fuels,”
there is some speculation that the intent may be that the 35 billion gallon target would be
met, in part, with non-renewable fuels.
19 Relative to uncompleted action in the 109th Congress on FY2007 appropriations for EERE
programs, the FY2008 DOE budget request sought significant increases for the Biofuels
Initiative and other AEI initiatives. However, the final FY2007 EERE appropriations set
by the 110th Congress in P.L. 110-5 were much higher than those proposed by the 109th
Congress. The appropriations were also higher than the levels recommended by the FY2008
DOE budget request; and the request was released two weeks before the final EERE
appropriations were set by P.L. 110-5.

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cost of energy from photovoltaic systems through manufacturing and efficiency
improvements.”20
As Table 1 shows, the FY2008 DOE request includes $378.0 million for
renewable energy programs,21 which is $53.8 million, or 12%, less than the FY2007
appropriation (excluding inflation).22 Except for the Asia-Pacific Partnership, the
request proposes no increases relative to the FY2007 appropriation. Key technology
program decreases include Biomass (-$20.4 million), Solar Energy (-$11.1 million),
and Wind Energy (-$9.3 million).23 Also, the request would terminate International
Renewables (-$9.5 million), and Geothermal Technology (-$5.0 million).
Congressional Hearings. At House and Senate hearings on the FY2008
DOE budget request, Energy Secretary Bodman testified that the funding request for
AEI will continue to “support clean energy technology breakthroughs that will help
improve our energy security through diversification and could help to reduce our
dependence on foreign oil.”24 In support of the requested increase for the Biofuels
Initiative, the Secretary said that biomass is “a promising renewable option for
producing liquid transportation fuels in the near term.” Also, he stated that the
proposed increase for the Solar America Initiative is focused on the goal of
“achieving cost competitiveness for photovoltaic (PV) solar electricity by 2015,”
through an emphasis on “public-private partnerships with industry, universities,
national laboratories, states, and/or other government entities.” At the hearings,
concerns were raised about DOE’s proposed elimination of funding for the
Geothermal and Small Hydropower programs.
House Action (H.R. 2641). The House recommended a much higher funding
level for the DOE Renewable Energy Program than the Administration’s request. In
the Energy and Water Development Appropriations Bill for FY2008 (H.R. 2641),25
the House approved $593.7 million for DOE’s Renewable Energy Program.26 This
would be $215.7 million, or 57%, more than the request. Compared with the request,
20 The White House. Office of Management and Budget. Budget of the United States
Government, Fiscal Year 2008 — Appendix
. (Department of Energy) p. 362.
[http://www.whitehouse.gov/omb/budget/fy2008/pdf/appendix/doe.pdf]
21 Note that the FY2007 appropriation includes a major one-time outlay for facilities
construction and expansion at the National Renewable Energy Laboratory (NREL). This
expense is not an annual one.
22 The DOE FY2008 budget document is online at [http://www.mbe.doe.gov/budget/
08budget/Content/Volumes/Vol_3_ES_New.pdf].
23 The request also shows a decrease of $100 million for construction of facilities at the
National Renewable Energy Laboratory. Because this funding line does not support work
on a specific technology program, it was not included in the total funding for technology
programs.
24 His Senate testimony is at [http://energy.senate.gov/public/_files/BodmanTestimony.pdf].
25 For more details on this bill see CRS Report RL34009, Energy and Water Development:
FY2008 Appropriations.

26 For details of the House recommendation, see H.Rept. 110-185, p. 59-65.

CRS-8
key increases for renewable energy R&D include Biomass/Biofuels ($70.7 million),
Solar Energy ($51.7 million), Geothermal Energy ($44.3 million), and Hydro/Marine
Energy ($22.0 million).27 Using an authorization from EPACT (§931[a][2][e]), the
House approved $6 million under the Hydropower account to create a new R&D
focus on hardware for ocean, tidal, and in-stream-based electricity generation. This
equipment is sometimes referred to collectively as “hydrokinetic” or “marine” energy
technologies.
Senate Action (S. 1751). The Senate Appropriations Committee also
recommended a much higher funding level than the Administration’s request. In its
version of the Energy and Water Development Appropriations Bill for FY2008 (S.
1751), the Committee approved $528.5 million for DOE’s Renewable Energy
Program — $150.5 million, or 40%, more than the request.28 Compared with the
request, key increases for R&D programs include Biomass/Biofuels ($70.7 million),
Solar Energy ($51.7 million), Geothermal Energy ($44.3 million), and Hydro/Marine
Energy ($22.0 million).29 Under Hydropower, the Committee recommended $8
million for a new program focused on marine energy technologies. The Committee’s
report (S.Rept. 110-127) directs DOE to study and report on increasing ethanol
blends to 25%, the National Biofuels Action Plan, reverse auction for cellulosic
biofuels grants, and improving vehicles to use E-85 (85% ethanol) fuel.
Tax Credit Issues
Renewable Energy Electricity Production Tax Credit (PTC)
Electricity produced by certain renewable energy facilities is eligible for an
income tax credit based on production. Eligible facilities include those that produce
electricity from wind, closed-loop biomass, open-loop biomass (including
agricultural livestock waste nutrients), geothermal energy, solar energy, small
irrigation power, landfill gas, and trash combustion. The credit’s expiration date
refers to the deadline for a facility to be placed into initial operation. Once a facility
is qualified, a taxpayer may claim the credit annually over a 10-year period that
commences on the facility’s placed-in-service date.30
27 The National Renewable Energy Laboratory (NREL) is the premier national lab for solar
energy R&D and has major programs in hydrogen, biomass/biofuels, wind energy, and
vehicles. The large increase recommended for the Facilities Construction program includes
$8 million for solar R&D equipment, $13 million for infrastructure to test plug-in hybrid
vehicles, $77 million for NREL’s distributed energy systems integration facility, and $91
million to design and build a facility for biological and chemical research.
28 For details about the Senate recommendation, see S.Rept. 110-127, p. 125-134.
29 Compared with the House levels, the Committee recommends somewhat lower amounts
for some R&D programs, including Solar Energy (-$20.0 million), Geothermal Energy
(-$19.3 million), and Hydro/Ocean Energy (-$12.0 million). Also, International Renewables
would be terminated (-$10.0 million).
30 U.S. Joint Committee on Taxation. Description and Technical Explanation of the
(continued...)

CRS-9
Background and History. The PTC was established by federal law (P.L.
102-486) in 1992.31 The credit was originally set at 1.5 cents/kwh and is adjusted
annually for the previous year’s inflation rate.32 Since 1992, it has expired and been
reinstated three times, and it has been extended two other times.33 In August 2005,
the Energy Policy Act of 2005 (P.L. 109-58, §1301) extended the PTC for two years,
through the end of calendar year 2007.34 Also, the credit was expanded to include
incremental hydropower and to increase the credit duration to 10 years for open-loop
biomass, geothermal, solar, small irrigation power, and municipal solid waste. The
Tax Relief Act of 2006 (P.L. 109-432, §201) extended the PTC for one additional
year, through the end of 2008.

Current Status. In 2007, the credit stood at 2.0 cents/kwh for claims against
2006 taxes. To illustrate the credit’s significance, this 2.0 cents/kwh represented
about one-third of wind production costs in 2006. As Table 2 shows, half credit
(valued at 1.0 cents/kwh in 2006) was provided for electricity produced by facilities
that used open-loop biomass, small irrigation water flows, incremental hydropower,
or landfill gas from municipal solid waste. In application, the credit may be reduced
for facilities that receive certain other federal credits, grants, tax-exempt bonds, or
subsidized energy financing. The amount of credit that may be claimed is phased out
as the market price of electricity exceeds certain threshold levels.35
Revenue Effects. Claims for the PTC were less than $1 million in 1993 and
1994. Table 3 shows that credit claims started growing more rapidly in 1995 and
increased sharply, though erratically, from 1999 through 2004. Wind farm
developments accounted for more than 90% of the dollar value of PTC claims
through 2004.36 Assuming the credit’s availability for new projects ends as
scheduled in 2008, the table shows that the claims for 2005 through 2010 are
estimated to increase substantially (in current year dollars) relative to past levels.
Impact on Resource Development. The PTC, combined with other
policies, has had a positive though erratic effect on the growth of the wind energy
30 (...continued)
Conference Agreement of H.R. 6, Title XIII, “The Energy Tax Incentives Act of 2005.” July
28, 2005. p. 16. [http://www.house.gov/jct/x-60-05.pdf]
31 Section 1914 of the Energy Policy Act of 1992 (EPACT92, P.L. 102-486).
32 The adjustment is set retrospectively, after inflation data is available for the previous
calendar year.
33 The most recent expiration occurred during 2004.
34 A detailed description of the PTC appears in the report Description and Analysis of
Certain Federal Tax Provisions Expiring in 2005 and 2006
, by the Joint Tax Committee,
at [http://www.house.gov/jct/x-12-05.pdf].
35 The reductions and phase-out are described in IRS Form 8835. Renewable Electricity,
Refined Coal, and Indian Coal Production Credit.
2006. p. 2. [http://www.irs.gov/pub/
irs-pdf/f8835.pdf]
36 Personal communication with Curtis Carlson, Office of Tax Policy, Department of the
Treasury. March 2007.

CRS-10
industry. In contrast, it has had very little effect on baseload renewables, such as
geothermal and biomass energy, and it has had virtually no effect on solar energy
development. The following sections discuss PTC impacts in more detail.
Impact of Boom-Bust Cycle on Wind Energy Industry. Coupled with
rising energy costs, R&D advances, and a variety of state policies, the PTC has
stimulated significant growth in wind capacity over the past 10 years.37 However, the
PTC expirations in 2000, 2002, and 2004 caused annual capacity growth to fall
sharply in those years, by as much as 80% relative to the previous year. After each
expiration, the PTC was reinstated for one- to two-year periods.38 In 2005, one wind
industry representative testified:
Unfortunately ... two plus one plus one plus one does not necessarily equal five
predictable years. Instead, it represents not the sum total of years the credit has
been in place, but rather periods of uncertainty, when new wind construction
stopped, jobs were eliminated, and costs were driven up. Business thrives on the
known and fails on the unknown. The unpredictable nature of the credit has
prevented the needed investment in U.S.-based facilities that will drive
economies of scale and efficiencies.39
In 2007, one renewable energy analyst echoed this observation, testifying that
the frequent credit expiration, and short-term nature of reinstatements and extensions,
have led to several adverse impacts on wind industry growth. The variability of the
credit has caused the growing demand for wind power to be “compressed into tight
and frenzied windows of development. This cycle of boom-and-bust has resulted in
under-investment in manufacturing capacity in the United States and variability in
equipment and supply costs.” It may also have caused under-investment in
transmission planning and development, further restricting growth.40
The American Wind Energy Association has recently noted that the cycle of
decline in wind industry activity actually starts about 8 months before a PTC
expiration date.41 Representatives of the wind industry have testified that the cycle
of peak manufacturing production demands followed by cutbacks “would be
eliminated if a long-term PTC extension was in effect.”42 Opponents of the PTC say
37 U.S. Congress. Senate. Committee on Finance. Clean Energy: From the Margins to the
Mainstream.
Hearing held March 29, 2007. Testimony of Ryan Wiser, p. 5.
[http://finance.senate.gov/sitepages/hearing032907.htm]
38 Senate Finance Committee, Clean Energy, Testimony of Ryan Wiser p. 5.
39 U.S. Congress. House. Committee on Ways and Means. Tax Credits for Electricity
Production from Renewable Sources.
Hearing held May 24, 2005. Testimony of Dean
Gosselin, FPL Energy. p. 25-26. [http://waysandmeans.house.gov/hearings.asp?formmode=
detail&hearing=411]
40 Senate Finance Committee, Clean Energy, Testimony of Ryan Wiser, p. 7.
41 American Wind Energy Association (AWEA). Legislative Priorities: Production Tax
Credit Extension.
[http://www.awea.org/legislative/]
42 House Ways and Means Committee, Tax Credits for Renewables, Testimony of Dean
(continued...)

CRS-11
that the credit was created to provide temporary economic assistance to help the
renewable electricity production industry get started. Further, they say that the PTC
was not intended to be a permanent subsidy. Despite 15 years of subsidies, wind still
apparently cannot compete without the PTC, opponents note.
Very Limited Impact on Other Renewables. Geothermal power facilities
are physically and operationally more like conventional coal-fired power plants than
wind machines. There is usually one large, highly capital-intensive plant that uses
heat to produce base-load power.43 However, industry testimony suggests that
identifying a suitable geothermal resource is similar to prospecting for oil or natural
gas. The costs and risks of exploration for geothermal are as high or higher than
those for the oil and gas industry, and the ability to attract financing is far more
difficult. Once a resource is verified, permitting and construction can take three to
five years or more. Since 1992, there has been very limited development of new
geothermal facilities.44
In 2005, EPACT increased the amount of the PTC available to geothermal
facilities from half to full credit. However, the PTC’s short windows of availability
have made the credit largely ineffective as an incentive for the geothermal industry.
Industry representatives have noted that the largest projects “may not go forward
because they face unacceptable risks trying to meet the rigid deadline ... [or to avoid]
taking an all-or-nothing gamble on future extensions of the credit.”45 The geothermal
industry says a PTC extension of 10 years or more could be sufficient to stimulate
industry growth.46
Representatives of biomass, hydropower, and landfill gas industries say their
facilities are more like geothermal facilities than wind machines and, thus, also
require a longer-term PTC period. In 2005 testimony, EIA offered a similar
observation:
Short-term extensions of the PTC are likely to have limited impact on qualifying
technologies like biomass and geothermal, which have relatively long
42 (...continued)
Gosselin, p. 25.
43 These facilities are often 10 megawatt (mw) to 100 mw in capacity, compared with wind
machines that usually range from 2 mw to 5 mw.
44 U.S. Congress. Senate. Committee on Energy and Natural Resources. Implementation
of Provisions of the Energy Policy Act of 2005.
Hearing held July 11, 2006. Testimony of
K a r l G a w e l l , G e o t h e r ma l E n e r gy A s s o c i a t i o n ( G E A ) . p . 9 5 .
[http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=109_senate_hearings&doci
d=f:30004.pdf]
45 Senate Energy Committee, Implementation of EPACT, Testimony of GEA, p. 92-93.
46 Personal communication with Karl Gawell, Geothermal Energy Association, April 6,
2007.

CRS-12
development periods, even if the credit were large enough to make them
economical.47
The PTC has been even less valuable for solar energy equipment. Most solar
electricity equipment comes as small, widely distributed units that are designed
mainly for on-site use, not for power sales to the grid.48 These aspects make the PTC
less valuable for solar than the business and residential investment tax credits
(ITC).49 Due to rules against multiple tax credit use, solar equipment cannot qualify
for both the PTC and ITC, and so owners must choose one or the other.
Representatives of the solar industry have indicated a clear preference for ITC over
PTC.50 Even with the PTC, solar is too expensive for utility-scale application.
Combined Impact with State Renewable Portfolio Standards. After
its creation in 1992, the PTC was virtually unused until states began to establish
renewable portfolio standard (RPS) policies.51 State RPS action began in the mid-
1990s.52 Since then, an increasing number of states have implemented an RPS.
Table 3 shows the trend depicting the close correlation between rising PTC claims
and the growing number of states with an RPS. Since the late 1990s, many have
noted that the combined effect of the PTC with state RPS policies has been a major
spur to wind energy growth.53
Credit Design Issues. The variability in tax credit availability has led to
erratic growth in energy production, and it has caused the U.S. wind industry to
become more dependent on European equipment due to stronger European
requirements for renewables.54 Despite these problems, wind has been the main
beneficiary of the credit. A related issue is that the PTC has not been effective at
stimulating the development of other renewable energy facilities, which generally
need a longer period of credit availability. The main proposal to address the variable
impact on wind and the lack of impact on other renewables is the enactment of a
longer-term PTC extension. The wind industry prefers an extension of 5 years or
more.
47 House Ways and Means Committee, Tax Credits for Renewables, Testimony of Dr.
Howard Gruenspect for the Energy Information Administration (EIA), p. 10.
48 Also, solar energy equipment has high capital costs and low capacity factors.
49 House Ways and Means Committee, Tax Credits for Renewables, EIA Testimony, p. 6-9.
50 House Ways and Means Committee, Tax Credits for Renewables, Testimony of Chris
O’Brien for the Solar Energy Industries Association (SEIA), p. 47-49.
51 EIA, AEO2005, p. 58.
52 Iowa first established a renewable energy requirement in 1983. However, most states did
not consider an RPS until after electricity restructuring policies appeared in the mid-1990s.
The following section of this report discusses state RPS activity in greater detail.
53 DOE. Energy Information Administration (EIA). Annual Energy Outlook 2006. (Section
on “State Renewable Energy Requirements and Goals: Update Through 2005.) p. 27.
Further discussion of the importance of the PTC to RPS is presented in the section under
Renewable Portfolio Standard entitled “Federal Support for State RPS Policies.”
54 Senate Finance Committee, Clean Energy, Testimony of Ryan Wiser, p. 7-9.

CRS-13
On occasion, the PTC has been expanded to include a broader range of
renewable energy resources. So another potential credit design issue is whether the
credit should be expanded again to include equipment that uses other renewable
resources, such as tidal, wave, and ocean thermal energy.
Extend the Credit to Achieve a 5-Year Period or More. At least two
studies have attempted to assess the potential results of a longer-term PTC extension.
In one study, EIA examined a 10-year extension and found that wind power would
continue to show the largest projected gains.55 Landfill gas, geothermal, and biomass
were also projected to experience some capacity expansion. EIA estimated a 7-fold
increase for wind, a 50% increase for biomass, and a 20% increase for geothermal
facilities.56
In 2007, DOE’s Lawrence Berkeley National Laboratory (Berkeley Lab)
reported the results of a study that examined the potential benefits of extending the
PTC for 5 to 10 years. Relative to a projection with continued cycles of 1-year to 2-
year extensions, it found that the installed cost of wind could be reduced by 5% to
15%. Additional benefits could include better transmission planning and enhanced
private R&D spending. Also, Berkeley Lab estimated that a 10-year extension could
increase the domestic share of manufactured wind equipment from the current level
of 30% to about 70%.57 The Joint Committee on Taxation has estimated that a four-
year extension of the credit’s placed-in-service deadline would reduce tax revenue
to the U.S. Treasury by about $6.6 billion over the nine-year duration of credit
claims.58
In 2007 testimony, MidAmerican Energy Company suggested that a 5-to-10 year
PTC extension would also be the best way to encourage baseload renewables, such
as geothermal and biomass. Such an extension, it said, would provide long-term
certainty to utilities, independent project developers, and manufacturers. To address
budget-related cost concerns for a PTC extension, Mid-American suggested that a
long-term extension could be coupled with a gradual phase-down of the credit to 1.5
cents/kwh. Alternatively, if the credit extension were set at something less than 5
years, Mid-American proposed that a conditional second deadline could be set up that
would extend the placed-in-service eligibility period. That extension would require
an offsetting reduction in the credit period, the length of time over which credit
claims could be filed. The conditions required for an extension to a secondary
placed-in-service deadline are that the project must be under construction and have
signed power sales contracts before the initial credit expiration date and it must bring
the project online before the secondary placed-in-service deadline. For example, if
55 Prior to the PTC extension in EPACT05, EIA examined an extension from the end of
2005 through the end of 2015. The extension included all resources covered by the PTC at
that time at the values that were in place then. EIA. Annual Energy Outlook 2005
(AEO2005)
. p. 60.
56 House Ways and Means Committee, Tax Credits for Renewables, EIA Testimony, p. 10.
57 Senate Finance Committee, Clean Energy, Testimony of Ryan Wiser, p. 8-10.
58 Joint Committee on Taxation. Estimated Revenue Effects of the Tax Provisions Contained
in H.R. 2776.
June 19, 2007. [http://www.house.gov/jct/x-36-07.pdf]

CRS-14
the secondary deadline were set as one year past the initial placed-in-service deadline,
a project that met those conditions would be eligible to receive the credit, but only
for nine years instead of ten.59
Credit Extension Debate. The PTC is set to expire at the end of 2008. In
the 110th Congress, the House-passed version of H.R. 3221 (§11002) would extend
the credit for four years, to the end of 2012.60 It would also expand the credit to
include equipment that uses marine (ocean thermal, wave, tidal, and current) energy.
The Senate-passed version of H.R. 6 did not include any tax provisions. In Senate
floor action on H.R. 6, S.Amdt. 1704 included a provision (§801) that would have
extended the PTC for five years, and expanded it to include marine energy. A failed
attempt at cloture (57-36) on the amendment kept it from being added to the bill.
Subsequently, a successful cloture vote on the bill caused the amendment to become
non-germane.
Proponents of extending the credit past 2008 argue that the PTC is merited
because it corrects a market failure by providing economic value for the
environmental benefits of “clean” energy sources that emit less (in many cases, far
less) air pollutants and CO than conventional energy equipment. Also, they contend
2
it helps “level the playing field,” noting that there is an even longer history of federal
subsidies for conventional energy.61 For example, they point to the permanent
depletion allowance for oil and natural gas that has been in place for many decades.62

Opponents of extending the production tax credit beyond the end of 2008 argue
that generally there are no market failures that warrant special tax subsidies for
particular types of renewable energy technologies. They argue further that subsidies
generally distort the free market and that renewables should not get special treatment
that exempts them from this principle. Also, regarding the concern about the
environmental problems of “dirty” conventional energy sources, they contend that the
most cost-effective economic policy is to put a tax on the pollution from energy
sources and let the free market make the necessary adjustments. Another argument
against the PTC is that much renewable energy production, particularly from wind
59 Senate Finance Committee, Clean Energy, Testimony of Todd Raba of MidAmerican
Energy Company, p. 3.
60 Another bill (S. 411) would make the full credit available for all resources. See Table 2
for a list of resources that are currently eligible for only half-credit.
61 Federal subsidies for conventional energy resources and technologies and for electric
power facilities (including large hydroelectric power plants) have been traced back as far
as the 1920s and 1930s. See DOE (Pacific Northwest Laboratory), An Analysis of Federal
Incentives Used to Stimulate Energy Production,
1980. 300 p.
62 GAO. Petroleum and Ethanol Fuels: Tax Incentives and Related GAO Work.
(GAO/RCED-00-301R) September 25, 2000. The report notes that from 1968 through 2000,
about $150 billion (constant 2000 dollars) worth of tax incentives were provided to support
the oil and natural gas industries.

CRS-15
and solar equipment, has a fluctuating nature that makes it less valuable than energy
produced by conventional facilities.63
At a Senate hearing in February 2007, Energy Secretary Bodman testified that
the Administration is unlikely to support a 5-year or 10-year PTC extension because
it would not be consistent with free markets.64 Consistent with this stance, the
Administration’s FY2008 budget request does not include a provision to cover a PTC
extension beyond 2008. However, Section 332 of the Senate version (S.Con.Res. 21)
of the budget resolution would create a deficit-neutral reserve that could be used to
support the PTC and other tax incentives. The Administration has not singled out
opposition to the proposed extension of the PTC in H.R. 3221. However, for other
reasons, it has threatened to veto both the House-passed version of H.R. 3221 and the
Senate-passed version of H.R. 6.
Solar Investment Tax Credits
The Energy Tax Act of 1978 (P.L. 95-618) established a residential energy tax
credit for solar and wind energy equipment.65 As energy prices declined, Congress
allowed the credit to expire at the end of 1985. In 2005, EPACT (P.L. 109-58,
§1335) established a 30% residential solar credit with a cap at $2,000, through the
end of 2007.66 The Tax Relief Act of 2006 (P.L. 109-432, §206) extended the credit
through the end of 2008.
The Energy Tax Act also established a 10% business tax credit for solar, wind,
geothermal, and ocean energy equipment.67 The Energy Policy Act of 1992 made
permanent the 10% business credit for solar and geothermal equipment. In 2005,
EPACT (§1337) increased the solar business credit to 30% through the end of 2007.68
The Tax Relief Act of 2006 extended the 30% rate through the end of 2008. After
that, it would drop back to 10%.
The solar industry has testified that the investment tax credit (ITC) is the most
important tax incentive for solar equipment. It believes that a longer-term extension
of the ITC would help the industry achieve economies of scale and broaden the use
of this equipment.
63 Some argue further that as the contributions from wind and solar power production rise,
their intermittent nature may create grid management problems for electric utilities.
64 U.S. Congress. Senate. Committee on Energy and Natural Resources. Proposed Budget
for FY 2008 for the Department of Energy.
Hearing held February 7, 2007.
[http://energy.senate.gov/public/index.cfm?FuseAction=Hearings.Hearing&
Hearing_ID=1601]
65 The claim against income was set at 30% of the first $2,000 and 20% of the next $8,000.
The Crude Oil Windfall Profits Tax Act of 1980 (P.L.96-223) increased the credit from 30%
to 40% of the first $10,000.
66 Joint Tax Committee, Description of H.R. 6, p. 49.
67 The Windfall Profits Act increased the credit to 15% and extended it through the end of
1985. The Tax Reform Act of 1986 (P.L.99-514) extended the credit through 1988.
68 Joint Tax Committee, Description of H.R. 6, p. 52-53.

CRS-16
H.R. 3221 (§11003) would extend the commercial solar tax credit at the 30%
level for eight years. Also, it would make the credit allowable against the alternative
minimum tax.69 Section 11006 would eliminate the cap on the residential solar tax
credit and allow the credit to offset alternative minimum tax liability.70
The debate over extending these credits is similar to that for the PTC.
Opponents argue that subsidies distort the operation of the free market. They also
contend that the most effective policy is to impose a tax on energy equipment that
causes pollution. Proponents counter-argue that the credits correct a market failure
and help establish equality with subsidies that exist for conventional energy
equipment. They also assert that the subsidy-induced increase in demand helps
manufacturers establish economies of scale that will make solar equipment more
competitive in the long term.
Clean Renewable Energy (Tax Credit) Bonds
Non-profit electric utilities provide about 25% of the nation’s electricity.71 Due
to their tax-exempt status, they are not eligible for the PTC. To address the cost and
risk barriers for developing renewable energy facilities, these organizations have
sought incentives comparable to the PTC. Using a design that parallels the PTC, the
Energy Policy Act of 1992 (EPACT92) established a renewable energy production
incentive (REPI) that provided 1.5 cents/kwh, adjusted for inflation.72 REPI typically
receives about $5 million per year, through DOE appropriations. This limited
funding and annual uncertainty may have severely limited REPI’s potential. DOE
data for 2004 shows, for example, that funding covered only about 10% of requests
for REPI payments.73
In 2005 testimony, the American Public Power Association (APPA) stated that
REPI was “woefully underfunded,” and the National Rural Electric Cooperative
69 In Senate floor action on H.R. 6, S.Amdt. 1704 included a provision (§804) that would
have extended the commercial solar credit at the 30% level for 8 years, and it would have
allowed the credit to be used by public utilities. The amendment lost a cloture vote (57-36)
and was not further considered. The Solar Energy Industry Association had endorsed H.R.
550/S. 590, which would have expanded the commercial credit to include certain solar
storage and lighting equipment, and it would have extended the credit at the 30% level for
8 years.
70 S.Amdt. 1704 to H.R. 6 included a provision (§808) that would have extended the
residential solar credit at the 30% level for 6 years and doubled the credit cap to $4,000.
The amendment lost a cloture vote and was not further considered. The Solar Energy
Industry Association had endorsed H.R. 550/S. 590, which would have extended the
residential credit at the 30% level for 8 years.
71 These non-profit organizations include public power utilities, cooperative electric utilities,
and federally owned power utilities.
72 For background on REPI, see the Database of State Incentives for Renewable Energy.
[http://www.dsireusa.org/library/includes/incentive2.cfm?Incentive_Code=US33F&State
=federal&currentpageid=1&ee=0&re=1]
73 For historical details of REPI’s use, see the table entitled “REPI Appropriation Summary,”
on DOE’s website at [http://www.eere.energy.gov/wip/repi.html].

CRS-17
Association (NRECA) proposed that a “clean energy bond” be created to establish
an incentive for non-profit electric utilities that would be more comparable in scope
to the PTC.74 Subsequently, EPACT (§1303) established clean renewable energy
bonds (CREBs), a tax credit bond that allowed the bond holder to receive a federal
tax credit in lieu of interest paid by the issuer.75 EPACT authorized $800 million in
CREBs for 2006 and 2007.76 In late 2006, the Internal Revenue Service (IRS)
reported requests totaling $2.6 billion in bond authority. The Tax Relief Act of 2006
(§202) extended the CREBs through the end of 2008, adding $400 million more in
total bond authority.
H.R. 3221 (§11004) would establish a new category of CREBs (New CREBs)
for public power providers (utilities) and cooperative electric companies.77 The
“New CREBs” differ from the previously issued CREBs in four aspects. First,
issuers of New CREBs would be subjected to a shorter 3-year period for use of the
bond proceeds, two years less than the previous 5-year period for CREBs. Second,
the tax credit rate would be lower, set at 70% of the previous rate for CREBs.78
Third, taxpayers could carry forward unused credits into future years. Fourth, the tax
credit benefits could be separated from bond ownership.79
A national limit of $2 billion would be set for New CREBs, of which 60%
would be available for public power providers and 40% would be available for
cooperative electric companies. The revenue drain on the U.S. Treasury is estimated
at a total of $550 million over the period from 2007 through 2017.80 The
Administration has stated its opposition to the New CREBs proposed in H.R. 3221.
Specifically, it contends that the CREBs are “expensive and highly inefficient,” and
that New CREBs would be “inconsistent with the Federal Credit Reform Act of 1990
and/or unduly constrain the Administration’s ability to effectively manage Federal
74 U.S. Congress. House. Committee on Ways and Means. Tax Credits for Electricity
Production from Renewable Sources.
Hearing held May 24, 2005. Testimony of APPA
(p. 61-63) and NRECA (p. 67-69).
75 Thus, CREBs allow a bond issuer to borrow at a zero percent interest rate. Eligible bond
issuers include state and local governments, cooperative electric companies, and certain
other non-profit organizations. For the bondholder, the tax credit is also treated as taxable
interest. For example, a bondholder in a 30% tax bracket who receives a $100 tax credit
from the bond purchase would also have $30 treated as taxable interest income, leaving a
net tax credit of 70%. See [https://www.appanet.org/files/PDFs/CREB.pdf].
76 This included $500 million for governmental borrowers.
77 In Senate floor action on its substitute amendment (S.Amdt. 1502) to H.R. 6, S.Amdt.
1704 (§802) proposed to extend the CREBs for 4 years with an annual bond authority limit
of $900 million (including $563 million for governments) for 2008, 2009, 2010, and 2011.
Unused bond authority in any year would have been allowed to carryover to the next year.
78 The previous tax credit rate for CREBs was set as the rate that would permit issuance of
CREBs without discount and interest cost to the issuer.
79 H.Rept. 110-214. Renewable Energy and Energy Conservation Tax Act of 2007. June 27,
2007. p. 40.
80 Joint Committee on Taxation. Estimated Revenue Effects of the Tax Provisions Contained
in H.R. 2776.
June 19, 2007. [http://www.house.gov/jct/x-36-07.pdf]

CRS-18
credit programs.81 Proponents of the New CREBs counter-argue that the New
CREBs would “help limit the environmental consequences of continued reliance on
power generated using fossil fuels.” The tax-credit bonds, they argue, can attract
investment from taxpayers that are unable to benefit from tax credits.82
Debate Over Revenue Offsets in Omnibus Energy Bill (H.R.
3221)

The tax provisions in House-passed H.R. 3221 propose $15.3 billion in oil and
natural gas revenue offsets to support $15.3 billion in new incentives.83 These new
incentives would include $7.8 billion in renewable energy production tax incentives
and $7.5 billion in energy efficiency tax incentives. The renewable energy
incentives would include $6.6 billion for the renewable energy production tax credit
(PTC), $550 million for clean renewable energy (tax credit) bonds, and a portion of
another $650 million for commercial and residential solar tax credits.84
Concerns about the use of oil and natural gas revenue offsets to support
renewable energy and energy efficiency initiatives first emerged when the House
passed its version of H.R. 6 in January 2007. That bill’s revenue offset provisions,
which are nearly identical to those of H.R. 3221, were designed to fund an “Energy
Efficiency and Renewables Reserve.”85 Specific uses of the reserve were left to be
determined by ensuing legislation. Subsequently, section 308 of the conference
report on the concurrent resolution on the budget for FY2008 established a deficit-
neutral reserve fund for energy legislation.86
Debate over the revenue offset provisions in H.R. 3221 directly parallels the
House floor debate over the proposed language in the House version of H.R. 6. In
that debate, opponents argued that the reduction in oil and natural gas incentives
81 Executive Office of the President. Office of Management and Budget. Statement of
Administration Policy on H.R. 2776 and H.R. 3221. August 3, 2007. p. 2.
[http://www.energy.gov/media/SAP_on_HR2776_and_HR3221.pdf]
82 U.S. Congress. House. Committee on Ways and Means. Renewable Energy and Energy
Conservation Tax Act of 2007.
(H.Rept. 110-214) p. 39.
83 In Senate floor action on H.R. 6, S.Amdt. 1704 included provisions in Part VII, Subtitle
B, that would have established about $24 billion in oil and gas offsets to support renewable
energy and energy efficiency measures. The amendment failed on a cloture vote (57-36).
For more discussion of those provisions, see CRS Report RL33578, Energy Tax Policy:
History and Current Issues
, by Salvatore Lazzari.
84 Joint Committee on Taxation. Estimated Revenue Effects of the Tax Provisions Contained
in H.R. 2776.
June 19, 2007. [http://www.house.gov/jct/x-36-07.pdf]
85 For more details about the reserve, see CRS Report RS22571, The Strategic Energy
Efficiency and Renewables Reserve in the CLEAN Energy Act of 2007 (H.R. 6).
3 p.
86 H.Rept. 110-153. Concurrent Resolution on the Budget for Fiscal Year 2008. The
allowed uses of the energy reserve fund differ somewhat for the House and Senate.
However, the resolution allows each chamber to use the fund to support renewable energy
legislation, including tax legislation. [http://frwebgate.access.gpo.gov/cgi-bin/
getdoc.cgi?dbname=110_cong_reports&docid=f:hr153.110.pdf]

CRS-19
would dampen production, cause job losses, and lead to higher prices for gasoline
and other fuels. Opponents also contended that the proposal for the reserve does not
identify specific policies and programs that would receive funding. Proponents of
the bill counter-argued that record profits show that the oil and natural gas incentives
were not needed. They also argued that the Reserve could be used to support a
variety of R&D, deployment, and tax incentives for renewable fuels. Further, they
said that the specifics would evolve as legislative proposals come forth for using
resources from the reserve.87
Regulatory Issues
Renewable Portfolio Standard (RPS)
Under a renewable energy portfolio standard (RPS), retail electricity suppliers
(electric utilities) must provide a minimum amount of electricity from renewable
energy resources or purchase tradable credits that represent an equivalent amount of
renewable energy production. The minimum requirement is often set as a percentage
of retail electricity sales. More than 20 states have established an RPS, with most
targets ranging from 10% to 20% and most target deadlines ranging from 2010 to
2025. Most states have established tradable credits as a way to lower costs and
facilitate compliance. State RPS action has provided an experience base for the
design of a possible national requirement.
State RPS Debate. Opponents often contend that state RPS policies are not
worth implementing because the incremental costs of renewable energy may lead to
substantial increases in electricity prices. RPS proponents often counter by
presenting evidence that renewable energy costs would be modest and arguing that
RPS creates employment, reduces natural gas prices, and produces environmental
benefits.88
Federal Tax Credit (PTC) Supports State RPS Policies. The renewable
energy electricity production tax credit (PTC) is the single most important form of
federal support for state RPS policies. The PTC can “buy-down” the cost of
renewable energy by about $20/mwh on a long-term levelized cost basis. Thus,
assumptions about the future availability and level of the PTC can have a major
87 Congressional Record. January 18, 2007. p. H688 through H729.
88 DOE. Lawrence Berkeley National Laboratory. Weighing the Costs and Benefits of State
Renewables Portfolio Standards: A Comparative Analysis of State-Level Policy Impact
Projections.
March 2007. p. 58. [http://eetd.lbl.gov/ea/ems/reports/61580.pdf] This survey
of 28 state RPS cost projection studies found two that estimated rate increases greater than
5% and 19 that estimated rate increases less than 1%. Of the latter 19 studies, six estimated
rate decreases. The study concludes that “when combined with possible natural gas price
reductions and corresponding gas bill savings, the overall cost impacts are even more
modest.”

CRS-20
impact on planning for state RPS policies.89 Otherwise, federal agency involvement
with state RPS programs has primarily involved support for planning and analysis.90
Federal RPS Debate. RPS proponents contend that a national system of
tradable credits would enable retail suppliers in states with fewer resources to comply
at the least cost by purchasing credits from organizations in states with a surplus of
low-cost production. Opponents counter that regional differences in availability,
amount, and types of renewable energy resources would make a federal RPS unfair
and costly.
In Senate floor action on H.R. 6 in the 110th Congress, S.Amdt. 1537 proposed
a 15% RPS target. The proposal triggered a lively debate, but was ultimately ruled
non-germane. In that debate, opponents argued that a national RPS would
disadvantage certain regions of the country, particularly the Southeastern states.
They contended that the South lacks a sufficient amount of renewable energy
resources to meet a 15% renewables requirement. They further concluded that an
RPS would cause retail electricity prices to rise for many consumers.
RPS proponents countered by citing an EIA study that examined the potential
impacts of the 15% RPS proposed in S.Amdt. 1537. It indicated that the South has
sufficient biomass generation, both from dedicated biomass plants and existing coal
plants co-firing with biomass fuel, to meet a 15% RPS. EIA noted further that the
estimated net RPS requirement for the South would not make it “unusually
dependent” on other regions and was in fact “below the national average
requirement....” Regarding electricity prices, EIA estimated that the 15% RPS would
likely raise retail prices by slightly less than 1% over the 2005 to 2030 period.
Further, the RPS would likely cause retail natural gas prices to fall slightly over that
period.
In House floor action on H.R. 3221, an RPS amendment (H.Amdt. 748) was
added by a vote of 220 to 190. The bill subsequently passed the House by a vote of
241 to 172. The RPS amendment would set a 15% target for 2020, of which up to
four percentage points of the requirement could be met with energy efficiency
measures. Key points and counter-points of the Senate debate were repeated. On the
House floor, RPS opponents also contended that biomass power technologies were
not yet ready for commercial use and that certain usable forms of biomass were
excluded. Proponents acknowledged that there is a need to expand the definition of
biomass resources, and offered to do so in conference committee. (For more details
89 DOE. Lawrence Berkeley National Laboratory. Weighing the Costs and Benefits of State
Renewables Portfolio Standards: A Comparative Analysis of State-Level Policy Impact
Projections.
March 2007. p. 50. [http://eetd.lbl.gov/ea/ems/reports/61580.pdf]
90 Under its State and Local Program, the Environmental Protection Agency (EPA) has
provided online workshops (conference calls) that have promoted collaboration between
various states with an RPS in place. FERC has prepared studies and rulemakings related to
transmission, grid interconnection, and other RPS-related policies. NREL has prepared
various studies of state RPS programs and activities. EIA has prepared studies projecting
impacts of RPS proposals on electricity and natural gas prices. Some of these EIA studies
are cited under the below section on Federal RPS Debate.

CRS-21
see CRS Report RL34116, Renewable Energy Portfolio Standard (RPS): Background
and Debate Over a National Requirement.
)
Other Regulatory Issues
Wind Energy. Major wind developments in Europe have expanded from land-
based operations to include some offshore coastal areas. Proposals to develop
offshore wind have emerged in the United States as well. During the 109th Congress,
a major debate erupted over safety, economic, and environmental aspects of a
proposal by Cape Wind Associates to develop a 420-megawatt offshore wind farm
in Nantucket Sound, south of Cape Cod, Massachusetts. Cape Wind and other
proponents say the project is a safe, clean way to develop renewable energy and
create jobs. Opponents of the project have collaborated to create the Alliance to
Protect Nantucket Sound. The Alliance says that the project poses threats to the
area’s ecosystem, maritime navigation, and the Cape Cod tourism-based economy.
EPACT (§388) placed regulatory responsibility for offshore wind developments
with the Minerals Management Service (MMS) of the Department of the Interior.
In 2006, MMS announced that an environmental impact statement (EIS) would be
prepared for the project. In February 2007, Cape Wind submitted its draft EIS to
MMS.91 Also, the Coast Guard Act of 2006 (P.L. 109-241, §414) directs the Coast
Guard to determine the status of navigational safety aspects for the Cape Wind
Project. The parties to the debate are waiting for the results of the EIS and Coast
Guard study.
There is also a concern that tall wind turbines create false radar signals that may
disrupt civilian and military radar equipment. This led to federal actions to
temporarily halt several wind farm developments. The Defense Authorization Act
for FY2006 directed the Department of Defense (DOD) to study the issue and report
to Congress. In 2006, the Sierra Club filed suit to compel DOD to complete the
radar study. DOD released the report in late 2006,92 and allowed most of the delayed
projects to resume action. However, the report concluded that a more detailed study
is needed to understand and mitigate impacts on radar systems.93
The impact of wind turbines on wildlife has also become a focus of concern.
H.R. 3221 (§7231-7234) would require the Department of the Interior to form a
committee to recommend guidance to minimize and assess impacts of land-based
wind turbines on wildlife and wildlife habitats. State and federal laws (and
regulations) would not be preempted.
Marine (River, Tidal, Wave, and Ocean) Energy. Technology that
generates electricity from marine sources — including ocean waves, tides, and river
currents — has reached the pre-commercial stage. Tax incentives and other
91 Cape Wind has posted its draft EIS at [http://www.capewind.org/article137.htm].
92 The report is available at [http://www.defenselink.mil/pubs/pdfs/WindFarmReport.pdf].
93 Alliance to Protect Nantucket Sound, Pentagon Continues to Study Potential Cape Wind
Interference of Military Radar,
February 13, 2007. [http://www.saveoursound.org/node/537]

CRS-22
programs have been established in Florida, Maine, and New Jersey to encourage
commercial development. MMS has authority under EPACT (§388) to regulate
development of ocean energy resources on the outer continental shelf (OCS). The
Federal Energy Regulatory Commission (FERC) has asserted its authority to regulate
these technologies, which it considers to be forms of hydropower. As these
technologies develop to commercial scale, environmental issues are likely to arise,
over which several other agencies appear to have regulatory jurisdiction. As
technologies advance and new incentives become available, the regulatory struggle
between MMS and FERC, and the potential regulatory roles of other agencies, may
grow in importance.
In the 110th Congress,94 the House-passed H.R. 3221 contains several provisions
on these technologies. These include a funding authorization for a DOE R&D
program (§4101-4107), state grants for resource assessments (§7301), ocean thermal
energy licensing regulation (§7305), renewable energy portfolio standard (ocean and
tidal, §9611), and PTC (§11002).95
Renewable Fuels and Energy Security
Corn Ethanol
Farm-Based Corn Ethanol Production. In the United States, ethanol is
produced mainly from corn grown on farms.96 It is most often used as a 10% blend
with gasoline. Ethanol’s high cost has been a key barrier to increased commercial
use. This barrier has been addressed mainly by a 51-cent per gallon tax credit for fuel
use. Also, there has been a debate over the net energy benefit of using corn ethanol.97
National ethanol production was estimated at 4.85 billion gallons in 2006.98
94 The 109th Congress considered, but did not enact, legislation for these technologies that
would have authorized guaranteed loans and direct revenues from Outer Continental Shelf
(OCS) leases to fund ocean energy development. Also, a proposal to expand the renewable
energy production tax credit (PTC) to include these technologies was approved by the
Senate, but it was dropped in conference committee.
95 For more information, see CRS Report RL33883, Issues Affecting Tidal, Wave, and
In-Stream Generation Projects,
by Nic Lane.
96 Ethanol is the major farm-based renewable fuel. Corn provides 98% of ethanol
production. Biodiesel is another important farm-based fuel, produced mainly from soybean
oil. However, annual production is nearly 99% less than that for corn ethanol. For more
information on farm-based renewable fuels, see CRS Report RL32712, Agriculture-Based
Renewable Energy Production
, by Randy Schnepf.
97 For more information about ethanol developments and issues, see CRS Report RL33564,
Alternative Fuels and Advanced Technology Vehicles: Issues in Congress, and CRS Report
RL33290, Fuel Ethanol: Background and Public Policy Issues, both by Brent Yacobucci.
98 Renewable Fuels Association, Industry Statistics: Historic U.S. Ethanol Fuel Production,
September 4, 2007, at [http://www.ethanolrfa.org/industry/statistics/].

CRS-23
However, due to ethanol’s lower heat content,99 this is equivalent to about 3.2 billion
gallons of gasoline, or about 210,000 barrels of oil per day (b/d).
Corn Ethanol Impacts and Debate. The U.S. Department of Agriculture
(USDA) estimates that 20% of the 2006 corn crop was used to produce ethanol. The
rapid growth in agriculture-based biofuel production generated a sharp upturn in
corn, grain, and oilseed prices in late 2006. At the end of 2006, corn ethanol plant
capacity expansion was on record pace. The rapid growth in production and plant
capacity has raised concerns that further acceleration of ethanol production may pose
more challenges, including the development of pipeline capacity and the potential for
more food price increases.100
Supporters argue that ethanol displaces petroleum imports, thus improving
energy security. They further contend that its use can lead to lower emissions of air
pollutants and greenhouse gases, especially if higher-percentage blends are used.
Opponents argue that various federal and state incentives for ethanol distort the
market and provide “corporate welfare” for corn growers and ethanol producers.
Further, they assert that the energy and chemical inputs that fertilize corn and convert
it into ethanol actually increase energy use and emissions. However, proponents
counter-argue that ethanol provides modest energy and emissions benefits relative to
gasoline.
Cellulosic Ethanol
Cellulosic ethanol can be produced from dedicated fuel crops, such as fast-
growing trees and switchgrass. Switchgrass grows well on marginal lands, needing
little water and no fertilizer. This allows its growing area to be much larger than that
for corn.101 Cellulosic feedstocks may be cheaper and more plentiful than corn, but
they require more extensive and costly conversion to ethanol. Both DOE and USDA
are conducting research to improve technology and reduce costs. The United States
and Canada have pilot production facilities. Canada has one commercial-scale plant
in operation, and the first U.S. commercial plants are expected to start operating in
2009.
99 DOE, EIA, Ethanol. EIA reports that the heat content of ethanol is about 3.5 million Btu
per barrel (42 gallons); see [http://www.eia.doe.gov/oiaf/ethanol3.html]. Also, EIA’s
Monthly Energy Review, at [http://www.eia.doe.gov/emeu/mer/append_a.html], reports that
the heat content of motor gasoline is 5.25 million Btu per barrel. Thus, on a per volume
basis, ethanol has about 67% of the heat content of gasoline.
100 For more information on renewable energy initiatives in the 2007 farm bill proposals, see
CRS Report RL34130, Renewable Energy Policy in the 2007 Farm Bill, by Randy Schnepf.
Also see CRS Report RL33037, Previewing a 2007 Farm Bill, coordinated by Jasper
Womach. (Chapter on Energy)
101 For more information about using cellulosic biomass for ethanol production, see CRS
Report RL32712, Agriculture-Based Renewable Energy Production, by Randy Schnepf.

CRS-24
Renewable Fuel Standard (RFS)
EPACT (§1501) defines “renewable fuel” to include ethanol, biodiesel, and
certain other sources. Ethanol is the only one produced in large quantity. The law
set a national standard that required the use of 4.0 billion gallons in 2006 and rises
to 7.5 billion gallons by 2012. An incentive in the law encourages the use of
cellulosic and waste-derived ethanol to help achieve the RFS target. The incentive
is a multiplier that values each gallon of these two fuels at 2.5 gallons of renewable
fuel.
President’s “20-in-10” Alternative Fuels Goal. In his State of the Union
2007 message, President Bush said, “... We need to ... expand the use of clean diesel
vehicles and biodiesel fuel. We must continue investing in new methods of
producing ethanol, using everything from wood chips to grasses, to agricultural
wastes.”102 In particular, the President set out a “20-in-10” goal, to reduce gasoline
use 20% over the next 10 years (by 2017). As a strategy to promote increased energy
independence, the President said, “When we do that we will have cut our total
imports by the equivalent of three-quarters of all the oil we now import from the
Middle East.”103 In addition to a call for increased fuel economy to reach this goal,
the President said “we must increase the supply of alternative fuels, by setting a
mandatory fuels standard to require 35 billion gallons of renewable and alternative
fuels in 2017 — and that is nearly five times the current target.”104
Senate-Passed H.R. 6 Proposal to Increase RFS. In parallel with the
President’s fuel production target for 2017, the Senate-passed version of H.R. 6
(§111) would increase the RFS annually, starting at 8.5 billion gallons in 2008 and
rising to 36 billion gallons in 2022. The House-passed version of H.R. 3221 did not
include an RFS. In a Statement of Administration Policy on H.R. 6, the
Administration indicated its support for the Senate’s RFS proposal.105
Biofuels and Oil Imports
Administration’s Biofuels Initiative. The Administration’s Biofuels
Initiative, part of the AEI, was designed to increase funding for cellulosic ethanol
development with the goal of accelerating its commercial use.106 In 2006, DOE
formed a joint research effort between its Office of Energy Efficiency and Renewable
102 The White House. State of the Union 2007. [http://www.whitehouse.gov/news/releases/
2007/01/20070123-2.html]
103 Ibid.
104 Ibid. The use of the phrase “renewable and alternative fuels” in the President’s address
has led many to speculate that the goal would allow for the use of non-renewable fuels, such
as coal-based or other fossil-fuel-based sources of liquid fuels.
105 Executive Office of the President. Office of Management and Budget. Statement of
Administration Policy on H.R. 6.
June 12, 2007. p. 2.
106 The White House, Fact Sheet: President Bush’s Four-Part Plan to Confront High
Gasoline Prices
, April 26, 2005, at [http://www.whitehouse.gov/news/releases/2006/04/
20060425-2.html].

CRS-25
Energy (EERE) and the Office of Science to develop cellulosic biotechnology that
would enable the production of 60 billion gallons per year.107 The research plan aims
for biotechnology breakthroughs to increase the quantity of biomass (e.g.,
switchgrass) per acre and to breed the plants to have more cellulose. The plan would
cut costs through biorefinery breakthroughs that reduce the number of conversion
steps and shift the process from chemical steps to biological steps.108
As Table 1 shows, DOE’s FY2008 budget request would provide about $179
million for DOE’s Biomass Program that supports the Biofuels Initiative and the 20-
in-10 fuels goal. This would be a $20 million reduction from the $197 million
appropriated for FY2007. In contrast, the House (H.R. 2641) has recommended an
increase to $250 million for FY2008, and the Senate Appropriations Committee (S.
1751) has recommended an increase to $244 million.
Farm-Related Biofuels Proposals. Omnibus energy legislation would
provide loan guarantees for biorefineries and biofuels production facilities. The
agriculture title of House-passed H.R. 3221 (§5003 ) would cap the guarantee at 90%
of the debt, covering up to $600 million for loans with a principal under $100 million
and up to $1 billion for loan principals ranging from $100 million to $250 million.
Additional funding from the Commodity Credit Corporation (CCC) would be
authorized, starting at $50 million in 2008 and rising to $250 million in 2012.109 The
Senate-passed version of H.R. 6 would allow guarantees for 100% of the debt,
covering loans with a principal up to $250 million. Also, the Senate bill would
require a validation of the project design in a pilot plant that had produced at least
50,000 gallons per year.
The energy title of the House-passed Farm Bill and the agriculture title of the
House-passed H.R. 3221 have parallel, but significantly different, provisions that
support the goals for an accelerated RFS and the Biofuels Initiative. The major
distinction between the agriculture energy titles of H.R. 3221 and H.R. 2419 is that
Title IX of H.R. 2419 has higher funding levels and more provisions than in Title V
of H.R. 3221. In particular, H.R. 2419 proposes a total of $3.2 billion in new funding
for Title IX energy provisions over 5 years compared with $2.2 billion under Title V
of H.R. 3221. The most notable energy provision of H.R. 2419 omitted from H.R.
3221 is a Biomass Energy Reserve (BER) program to provide financial and technical
assistance (including five year contracts) to landowners and operators to grow
dedicated energy crops as feedstock for cellulosic ethanol and other energy
production. (For more background, see CRS Report RL34130, Renewable Energy
Policy in the 2007 Farm Bill
, by Randy Schnepf.)
107 DOE, Factsheet on a Scientific Roadmap for Cellulosic Ethanol, p. 1. Assuming that the
60 billion gallons per year is provided by ethanol, that would be equal to 3.9 million barrels
per day of ethanol. Using the fact that ethanol has about 67% of the heat content of gasoline
by volume yields an estimate of 2.6 million barrels of oil equivalent per day. See
[http://www.er.doe.gov/News_Information/News_Room/2006/Biofuels/factsheet.htm].
108 DOE, Factsheet on a Scientific Roadmap for Cellulosic Ethanol, p. 2.
109 The energy title of the House-passed Farm Bill for 2007 (H.R. 2419, Title IX) would
cover up to $1 billion for all loans with a principal up to $250 million. Additional CCC
funding would start at $75 million in 2008 and rise to $300 million in 2012.

CRS-26
Potential Oil Import Reductions. Table 5 shows baseline EIA data for
U.S. oil use and Persian Gulf Imports in 2005 and EIA projections for selected future
years through 2030.110 The Table also shows ethanol production estimates for the
current RFS (7.5 billion gallons by 2012, and selected generic scenarios that would
increase the RFS to 35-in-2017 or to 36-in-2022.111 The Table shows that, at its peak
in 2012, the current RFS would displace an estimated 0.33 million barrels per day
(mbd), or about 11% of Persian Gulf Imports. Similar estimates of Persian Gulf oil
displacement are shown for the two scenarios. At the respective peak years, the “35-
in-2017” scenario could displace an estimated 1.52 mbd (51%) and the “36-in-2022”
scenario could displace an estimated 1.57 mbd (49%).
Climate Change
This section discusses the potential for renewable energy to reduce carbon
dioxide (CO ) emissions by displacing fossil fuel use.
2
CO Emissions Reduction Estimates
2
In most cases renewable energy appears to release less carbon dioxide (CO )
2
than fossil fuels.112 Thus, renewables are seen as a key long-term resource that could
substitute for significant amounts of fossil energy that would otherwise be used to
produce vehicle fuels and electricity. The potential percentage of renewable energy
substitution can depend on many factors, including energy prices, energy demand
growth,113 technology cost, and market penetration. As renewable energy production
displaces fossil fuel use, it would also reduce CO emissions in direct proportion,
2
except perhaps for biofuels and biopower.114
In general, the combustion of biomass for fuel and power production releases
CO at an intensity that may be close to that for natural gas. However, the re-growth
2
110 To facilitate comparison, all figures in the table are shown in terms of millions of barrels
per day, mbd.
111 Each RFS scenario is identified by its ultimate target, expressed in billions of gallons per
year of ethanol production in a certain future year. The ethanol figures in Table 5 were
converted from billions of gallons per year to millions of barrels per day. They assume
100% corn ethanol, with 67% of the heat content of gasoline by volume.
112 Because renewable energy is often developed for energy security, air pollution reduction,
or other purposes, it is an example of a “no-regrets” strategy for CO emission reductions.
2
Wind and solar energy have zero CO emissions in operation but may need an energy
2
storage back-up system (such as batteries or fuel cells) that do require fossil fuel use. When
biomass is developed as an energy crop, the CO emissions are near zero because each new
2
crop absorbs the same amount of emissions as are released by combusting the previous crop
— unless fertilizer is used.
113 The use of energy efficiency measures can have a significant effect on energy prices and
demand growth.
114 Non-biomass renewables also tend to reduce emissions of other air-borne pollutants that
cause urban smog, acid rain, and water pollution.

CRS-27
of biomass material, which absorbs CO , often offsets this release. Hence, net
2
emissions occur only when combustion is based on deforestation. In a “closed loop”
system, biomass combustion is based on rotating energy crops, there is no net CO2
release unless fertilizer is used, and any fossil fuel displacement, including decreased
natural gas use, would tend to reduce CO emissions.
2
Support for Renewables to Curb CO2
Since 1988, the federal government has initiated programs to support renewable
energy as a CO mitigation measure at DOE, USDA, EPA, the Agency for
2
International Development (AID), and the World Bank. AID and the World Bank
have received funding for renewable energy-related climate actions through foreign
operations appropriations bills.
States have undertaken a variety of programs that support renewables to curb
CO . These programs often have reasons other than climate change for supporting
2
renewables. California and New York are notable examples that have sizable
programs for R&D and market deployment.115 These programs are funded in large
part by a surcharge on electricity use, often identified as a public goods charge.116 As
noted in a previous section of this report, many states have enacted a renewable
portfolio standard. However, a growing number of states have also undertaken
climate programs that specifically include renewables as one mitigation measure.117
Many local governments have also undertaken climate programs that include
renewables as a component.118
Legislation
FY2007 Appropriations (P.L. 110-5, H.J.Res. 20)
DOE’s request sought $359.2 million for renewable energy R&D, which was
$126.0 million, or 54%, more than the FY2006 appropriation. The Energy and Water
Appropriations bill for FY2007 (H.R. 5427) contained appropriations for DOE’s
renewable energy programs. The House passed the bill (H.Rept. 109-474) and the
Senate Appropriations Committee reported (S.Rept. 109-274) its version of the bill.
115 California’s renewable energy program is at [http://www.energy.ca.gov/renewables/], and
its climate program is at [http://www.climatechange.ca.gov/]; for more about New York’s
renewable energy program go to [http://www.powernaturally.org/].
116 The Database of State Incentives for Renewable Energy (DSIRE) has information about
virtually all state renewable energy programs at [http://www.dsireusa.org/].
117 For more information see CRS Report RL33812, Climate Change: Action by States to
Address Greenhouse Gas Emissions,
by Jonathan Ramseur.
118 Information about local government programs is available from the EPA web site at
[http://www.epa.gov/climatechange/wycd/stateandlocalgov/local.html] and from Cities for
Climate Protection Campaign of the International Council for Local Environmental
Initiatives at [http://www.iclei.org/index.php?id=391].

CRS-28
Both reports contained several new policy directives.119 However, the 109th Congress
did not complete action on the bill.
In the 110th Congress, H.J.Res. 20 was introduced to continue FY2007
appropriations through the end of the fiscal year. It was enacted on February 15,
2007 as P.L. 110-5. The law sets funding for DOE’s Energy Efficiency and
Renewable Energy Programs at about $1.47 billion, an increase of $311.5 million
(27%) above the FY2006 appropriation. Table 1 shows how the DOE FY2007
Operating Plan distributed the $311.6 million across major EERE programs. The
$107.0 million for Facilities contains an $80.9 million increase. It includes $63
million to build a new facility at the National Renewable Energy Laboratory (NREL),
$20 million for NREL’s ethanol research biorefinery, and $16 million for advanced
photovoltaic manufacturing equipment. Other key increases include Biomass
($109.9 million), Solar Energy ($77.6 million), Hydrogen ($40.1 million), and
Building Technologies ($36.1 million). The main cuts are for Weatherization grants
(-$38.0 million), Geothermal (-$17.8 million), and Small Hydro termination (-$0.5
million).
P.L. 110-5 sets conditions on the EPACT (Title 17) loan guarantee program,
fixing a cap at $4 billion, prohibiting awards until final regulations are issued, and
requiring annual program evaluations by an independent auditor. The law provides
$7 million in FY2007 to fund operations of DOE’s Loan Guarantee Office.
Omnibus Energy Bills (H.R. 3221 and H.R. 6)
The Senate-passed version of H.R. 6, the proposed Renewable Fuels, Consumer
Protection, and Energy Efficiency Act of 2007, was composed from several bills.
The key provisions of the bill are appliance efficiency standards, an increase of the
renewable fuel standard (RFS) to 36 billion gallons by 2022, and an increase of the
combined corporate average fuel economy (CAFE) standards to 35 miles per gallon
(mpg) by 2020. Tax provisions and a renewable energy portfolio standard (RPS)
were not included.
The House-passed version of H.R. 3221 includes two divisions. Division A
contains the New Direction for Energy Independence, National Security, and
Consumer Protection Act
, which was composed from several bills. An adopted floor
amendment (H.Amdt. 748) added a 15% renewable portfolio standard (RPS).
Division B, the Renewable Energy and Energy Conservation Tax Act of 2007,
contains the House-approved version of H.R. 2776, and adds four titles to H.R. 3221.
It includes a four-year extension of the renewable electricity production tax credit and
other efficiency and renewables incentives.
Key challenges remain. First, there are significant differences between the two
bills. Second, further action would be required in at least one chamber before a
conference committee could be arranged. Third, concerns about certain oil and
119 The policy directions are described in CRS Report RL33346, Energy and Water
Development: FY2007 Appropriations.
(Section on Energy Efficiency and Renewable
Energy)

CRS-29
natural gas provisions have led the Administration to threaten to veto each bill. (For
a comparison of major provisions in the two bills, see CRS Report RL34135,
Omnibus Energy Efficiency and Renewable Energy Legislation: A Side-by-Side
Comparison of Major Provisions in House-Passed H.R. 3221 with Senate-Passed
H.R. 6
.)
Other Bills
In the 110th Congress, more than 270 bills with provisions for energy efficiency
or renewable energy have been introduced. A general description of the renewable
energy provisions in those bills, including those enacted into law, is available in CRS
Report RL33831, Energy Efficiency and Renewable Energy Legislation in the 110th
Congress
. The report also groups the bills by policy and issue areas, provides a table
that identifies recent action on the bills, and discusses recent action.

CRS-30
Table 1. DOE Renewable Energy Budget for FY2007-FY2008
(selected programs, $ millions)
FY2008
Senate
FY2008
FY2008 Appns. FY2008
Program
FY2006 FY2007 Request
House
Cmte
Conf.
Biomass & Biorefinery Systems
$89.8
$199.7
$179.3
$250.0
$244.0
— Cellulosic Ethanol Auction
10.4

5.0


Solar Energy Technology
81.8
159.4
148.3
200.0
180.0
— Photovoltaics
58.8

137.3
149.0
145.3
— Concentrating Solar
7.3

9.0
34.0
25.0
— Solar Heating & Lighting
1.4

2.0
12.0
4.7
Wind Energy Technology
38.3
49.3
40.1
57.5
57.5
Geothermal Technology
22.8
5.0
0.0
44.3
25.0
Hydro & Marine Technology
0.5
0.0
0.0
22.0
10.0
International Renewables
3.9
9.5
0.0
10.0
0.0
Tribal Energy
4.0
4.0
3.0
5.0
7.0
Renewables Prod’n Incentive
5.0
4.9
4.9
4.9
5.0
Asia Pacific Partner. (Renew.)
0.0

2.5
0.0
0.0
Renewables, Subtotals
246.1
431.8
378.0
593.7
528.5
— Technologies R&D/Facilities
233.2
413.4
367.6
573.8
516.5
— Deployment
12.9
18.4
10.4
19.9
12.0
Facilities (Nat. Renew. Lab)
26.1
107.0
7.0
195.7
7.0
Other EERE/Energy Efficiency
Hydrogen Technologies
153.5
193.6
213.0
194.6
228.0
— Fuel Cell Technologies
66.6

92.7


Vehicle Technologies
178.4
188.0
176.1
235.4
230.0
Building Technologies
68.2
104.3
86.5
146.5
137.0
Industrial Technologies
52.1
56.6
46.0
57.0
57.0
Federal Energy Management
19.0
19.5
16.8
27.0
23.0
Weatherization & Intergov.
316.9
281.7
204.9
314.9
307.6
Program Management
115.2
110.2
118.3
128.9
118.9
R&D Subtotal
887.9
1,220.3
1,046.7
1,558.9
1,316.8
Grants Subtotal
278.2
254.0
189.5
314.9
398.8
Use of Prior Year Balances





Total Appropriation, EE & RE
1,166.1
1,474.3
1,236.2
1,873.8
1,715.6
Office of Electricity Delivery &
Energy Reliability (OE)a
158.2
137.0
114.9
134.2
169.4
Sources: DOE FY2008 Congressional Budget Request, vol. 3, February 2007; DOE FY2007 Operating Plan;
H.Rept. 110-185; S.Rept. 110-127.
a. The Distributed Energy Program was moved from EERE to OE in FY2006.

CRS-31
Table 2. Production Tax Credit Value and Duration by Resource
Credit Period for
Credit Amount
Facilities Placed
Energy Resource
for 2007
in Service after
(cents/kwh)
August 8, 2005
(years)
Wind
2.0
10
Closed-Loop Biomass
2.0
10
Open-Loop Biomass
1.0
10
(includes agricultural livestock waste
nutrient facilities)
Geothermal
2.0
10
Solar (pre-2006 facilities only)
2.0
10
Small Irrigation Power
1.0
10
Incremental Hydropower
1.0
10
Municipal Solid Waste
1.0
10
(includes landfill gas and trash
combustion facilities)
Source: Joint Committee on Taxation. Description of the Tax Provisions in H.R. 2776, the
“Renewable Energy and Energy Conservation Tax Act of 2007.”
(JCX-35-07) June 19, 2007. p. 7.
[http://www.house.gov/jct/x-35-07.pdf]

CRS-32
Table 3. Production Tax Credit Claims, History and Projections
($ millions)
Credit
PTC
PTC
Number
Deflator
Year
Public Law
Lapse
Claims
Claims
of States
($ 2005)
(months) ($ current)
($ 2005) with RPS
History
1995
P.L. 102-486
3.2
0.8193
3.9
2
1996
P.L. 102-486
9.3
0.8350
11.2
3
1997
P.L. 102-486
9.4
0.8496
11.0
6
1998
P.L. 102-486
13.9
0.8559
16.2
9
P.L. 102-486,
1999
P.L. 106-170
6 months
28.9
0.8712
33.2
11
2000
P.L. 106-170
50.1
0.8888
56.4
12
2001
P.L. 106-170
70.6
0.9098
77.6
12
2002
P.L. 107-147
2 months
131.6
0.9272
141.9
13
2003
P.L. 107-147
142.8
0.9460
151.0
13
2004
P.L. 108-311
9 months
207.0
0.9704
213.3
18
Total, History
666.9
715.7
JCT Future Estimates
2005
P.L. 108-311
300
1.0000
300
21
2006
P.L. 109-58
900
1.0308
873
23
2007
P.L. 109-58
900
1.0570
851
24
2008
P.L. 109-432
1,000
1.0826
924
2009
1,600
1.1072
1,445
2010
1,200
1.1311
1,061
Total, Future
Estimates
5,950
5,154
Source: Historical data on PTC claims for 1995 through 2004 were obtained from Mr.
Curtis Carlson, Office of Tax Analysis, Internal Revenue Service. Estimates of PTC claims
for 2005 through 2010 were obtained by combining estimates from the Joint Committee on
Taxation for the PTC provisions in P.L. 108-311, P.L. 109-58, and P.L. 109-432.

CRS-33
Table 4. Renewable Fuels Compared with Persian Gulf Imports
(millions of barrels per day, mbd)
As a Percent of Persian
Oil Use or Oil Use Equivalent (mbd)*
Gulf Imports
Year
Total
Persian
7.5-in
7.5-in
35-in-
36-in-
35-in-
36-in-
Oil
Gulf
2012
2012
2017
2022
2017
2022
Use
Imports
(RFS)
(RFS)
2005
20.75
2.59
0.17
0.17
0.17
6.6%
6.6%
6.6%
Actual
2006
20.68
2.68
0.17
0.17
0.17
6.5%
6.5%
6.5%
2007
20.94
2.71
0.20
0.20
0.20
7.6%
7.6%
7.6%
2008
21.15
2.67
0.24
0.34
0.37
8.8%
12.6%
13.9%
2009
21.38
2.67
0.27
0.47
0.46
10.0%
17.6%
17.1%
2010
21.59
2.74
0.30
0.60
0.52
10.8%
21.9%
19.1%
2011
21.89
2.79
0.32
0.73
0.55
11.6%
26.3%
19.7%
2012
22.13
2.86
0.33
0.86
0.57
11.4%
30.2%
20.1%
2017
23.29
2.99

1.52
0.91

51.0%
30.6%
2022
24.58
3.20


1.57


49.0%
Sources: For Total Oil Use and Persian Gulf Imports, see EIA, Energy Information Administration.
Annual Energy Outlook 2007, Supplementary Tables 11 and 118. For the current renewable fuel
standard (RFS), see P.L. 109-58, §1501. For the “35-in-2017” proposal, see The White House, State
of the Union 2007
. For the “36-in-2022” proposal, see the Senate-passed version of H.R. 6, §111.
Note that all displacements assume 100% ethanol, with 67% of the heat content of gasoline by volume.
The ethanol figures also reflect the conversion that 42 gallons equal one barrel.
* The ethanol figures for RFS, 35-in-2017, and 36-in-2022 assume 100% corn ethanol, with 67% of
the heat content of gasoline by volume. The ethanol figures also reflect the conversion that 42
gallons equal one barrel.