U.S. Solar Photovoltaic Manufacturing:
Industry Trends, Global Competition, Federal
Support

Michaela D. Platzer
Specialist in Industrial Organization and Business
April 27, 2012
Congressional Research Service
7-5700
www.crs.gov
R42509
CRS Report for Congress
Pr
epared for Members and Committees of Congress

U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Summary
Every president since Richard Nixon has sought to increase U.S. energy supply diversity. In
recent years, job creation and the development of a domestic renewable energy manufacturing
base have joined national security and environmental concerns as rationales for promoting the
manufacturing of solar power equipment in the United States. The federal government maintains
a variety of tax credits, loan guarantees, and targeted research and development programs to
encourage the solar manufacturing sector, and state-level mandates that utilities obtain specified
percentages of their electricity from renewable sources have bolstered demand for large solar
projects.
The most widely used solar technology involves photovoltaic (PV) solar modules, which draw on
semiconducting materials to convert sunlight into electricity. By year-end 2011, the total number
of grid-connected PV systems nationwide reached almost 215,000. Domestic demand is met both
by imports and by about 100 U.S. manufacturing facilities employing an estimated 25,000 U.S.
workers in 2011. Production is clustered in a few states, including California, Oregon, Texas, and
Ohio.
Domestic PV manufacturers operate in a dynamic and highly competitive global market now
dominated by Chinese and Taiwanese companies. All major PV solar manufacturers maintain
global sourcing strategies; the only U.S.-based manufacturer ranked among the top ten global cell
producers in 2010 sourced the majority of its panels from its factory in Malaysia. Some PV
manufacturers have expanded their operations beyond China to places like the Philippines and
Mexico. Overcapacity has led to a significant drop in module prices, with solar panel prices
falling more than 50% over the course of 2011. Several PV manufacturers have entered
bankruptcy and others are reassessing their business models. Although hundreds of small
companies are engaged in PV manufacturing around the world, profitability concerns appear to be
driving consolidation, with ten firms now controlling half of global cell and module production.
The Department of Commerce and the U.S. International Trade Commission are investigating
allegations that U.S. producers have been injured by dumped and subsidized imports from China.
If significant duties are ultimately imposed, U.S. production could become more competitive with
imports, but the cost of installing solar systems might rise. On the other hand, a number of federal
policies that have helped to spur domestic demand for solar PV products have expired or reached
their funding limits. These include the 1603 cash grant program and the advanced energy
manufacturing tax credit; S. 591, which would extend the credit, has been introduced in the 112th
Congress. Under current law, the Investment Tax Credit for PV systems will sunset at the end of
2016.
The competitiveness of solar PV as a source of electric generation in the United States will likely
be adversely affected both by the expiration of these tax provisions and by the rapid development
of shale gas, which has the potential to lower the cost of gas-fired power generation and reduce
the cost-competitiveness of solar power, particularly as an energy source for utilities. In light of
these developments, the ability to build a significant U.S. production base for PV equipment is in
question.

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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Contents
Introduction...................................................................................................................................... 1
Solar Photovoltaic (PV) Manufacturing .......................................................................................... 3
Historical Overview................................................................................................................... 4
The Manufacturing Process....................................................................................................... 5
Production Locations................................................................................................................. 9
Domestic Production ............................................................................................................... 10
U.S. Solar Manufacturing Employment .................................................................................. 14
Global Production Shifts................................................................................................................ 15
U.S. Trade in Solar Products.......................................................................................................... 19
Allegations of Dumped and Subsidized Solar PV Products from China .......................... 20
Domestic Content.............................................................................................................. 21
U.S. Exports ...................................................................................................................... 21
U.S. Government Support for Solar Power ................................................................................... 22
Advanced Energy Manufacturing Tax Credit (MTC) ....................................................... 23
DOE Loan Guarantee Programs........................................................................................ 23
Investment Tax Credit (ITC) ............................................................................................. 25
SunShot and Other Department of Energy Initiatives ............................................................. 26
Conclusions.................................................................................................................................... 26

Figures
Figure 1. PV Value Chain ................................................................................................................ 8
Figure 2. U.S. PV Installations and Global Market Share ............................................................. 10
Figure 3. U.S. Cell/Module and Polysilicon Production Facilities................................................ 12
Figure 4. Domestic Solar Industry Employment Trends ............................................................... 14
Figure 5. Average Price of PV Cells and Modules ........................................................................ 16
Figure 6. Annual Solar Cell Production by Country...................................................................... 17

Tables
Table 1. Cell and Module Production in the United States............................................................ 10
Table 2. Selected Recent PV Facility Closures.............................................................................. 12
Table 3. Selected New or Planned PV Plants................................................................................. 13
Table 4. Top PV Cell Manufacturers by Production ...................................................................... 18
Table 5. U.S. Imports of Solar Cells and Modules, Select Countries ............................................ 20
Table 6. 1705 Loan Guarantees for Solar Generation and Manufacturing Projects ...................... 24
Table A-1. Solar PV Manufacturers Receiving a 48C Manufacturing Tax Credit......................... 28

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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Appendixes
Appendix........................................................................................................................................ 28

Contacts
Author Contact Information........................................................................................................... 29
Acknowledgments ......................................................................................................................... 29

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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Introduction
Major trends shaping the domestic photovoltaic (PV) manufacturing sector include technological
advances, improved production methods, and a global surplus of manufacturing capacity,1
especially from China. At the same time, PV manufacturers are grappling with falling module
prices, which have adversely affected the operations of many solar companies, forcing some to
reassess their business models and others to close factories or declare bankruptcy. Lower prices
may be good for PV consumers, but they are
squeezing manufacturers, especially in the
A PV Glossary
United States and Europe. In addition, the
PV stands for photovoltaic derived from “photo” for light
rapid development of shale gas has the
and “voltaic” for a volt, a unit of electrical force.
potential to lower the cost of gas-fired power
Solar photovoltaic, or solar PV for short, is a technology
generation in the United States, potentially
that uses the basic properties of semiconductor materials
affecting the competitiveness of solar power.
to transform solar energy into electrical power.
In light of these trends, the ability to build a
A solar PV cell is an electricity-producing device made of
sustained U.S. production base for PV
semiconducting materials. Cells come in many sizes and
equipment is now in question.
shapes. Materials used to make cel s include
monocrystalline silicon, polycrystalline silicon,
amorphous silicon (a-Si), cadmium telluride (CdTe),
U.S. solar manufacturing comprises a small
copper indium gallium (dis)selendie (CIGS), and copper
part of the U.S. manufacturing base. In 2011,
indium (di)selinide (CulnSe2 or CIS).
it directly employed about 25,000 workers,
Panels, or modules, are comprised of a number of solar
according to the Solar Energy Industries
cells.
Association (SEIA), a trade group. 2 The U.S.
An array is the collective name for a number of solar
cell and module market, measured by
modules connected together.
domestic shipment revenues, has grown in
size from $1.2 billion in 2006 to $6.4 billion
The anatomy of a solar cell, and how solar panels work,
can be viewed at
in 2010, reports the U.S. Energy Information
http://www.pbs.org/wgbh/nova/tech/how-solar-cell-
Administration.3 Following an unprecedented
works.html.
period of growth, the number of installed PV
systems in the United States reached 214,157 by the end of 2011, more than twice the total at the
end of 2009.4
Government support has been instrumental in sustaining the solar industry worldwide. In the
United States, tax incentives and stimulus funding spurred recent double-digit growth rates in
new PV installations.5 Nevertheless, even with direct government involvement, solar energy still

1 Bloomberg New Energy Finance estimates global module production capacity in 2012 to be 50% in excess of
demand; see “Week in Review,” vol. 6, issue 131, April 16-23, 2012.
2 Solar Foundation, National Solar Jobs Census 2011, October 2011, p. 25. Its count reflects solar jobs as of August
2011. By comparison, there were 11.7 million jobs in overall U.S. manufacturing in 2011.
3 U.S. Energy Information Administration (EIA), Solar Photovoltaic Cell/Module Shipments Report, January 2012,
Table 2, p. 7, http://www.eia.gov/renewable/annual/solar_photo/. Shipments data for 2006 are from Table 3.6 of EIA’s
2007 annual PV module/cell manufacturing survey.
http://www.eia.gov/renewable/annual/solar_photo/archive/solarpv07.pdf.
4 SEIA reports that in 2009, cumulative PV installations totaled 99,900. SEIA, U.S. Solar Market Insight Report, A4
2011 & 2011 Year-in-Review Full Report, March 2012, pp. 29-30.
5 SEIA, U.S. Solar Market Insight Report, 2011 Year-in-Review Executive Summary, March 2012, p. 3,
http://www.slideshare.net/SEIA/us-solar-market-insight-report.
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accounts for less than 0.1% of overall U.S. electricity generation.6 The Obama Administration
actively supports greater deployment of solar energy and sees it as one way to encourage
advanced manufacturing in the United States, create skilled manufacturing jobs, and increase the
role of renewable energy technology in energy production, among other objectives. In its
Blueprint for a Secure Energy Future, the Obama Administration argues:
We invented the photovoltaic solar panel, built the first megawatt solar power station, and
installed the first megawatt-sized wind turbine. Yet today, China has moved passed us in
wind capacity, while Germany leads the world in solar. To rise to this challenge, we need to
tap into the greatest resource we have: American ingenuity.7
This report discusses the solar photovoltaic industry and its supply chain; employment trends;
international trade flows; and federal policy efforts aimed at supporting the industry. It does not
cover other methods of solar-power generation, such as concentrated solar power.8 Concentrated
solar technologies, largely dormant prior to 2006, are suitable mainly for utility-scale generation,
whereas solar photovoltaics can be arranged in small-scale installations to produce power for
individual buildings as well as in large installations to supply power to utilities.
One of the main federal policy tools to encourage solar generation is the federal solar investment
tax credit (ITC)9 for both residential and commercial solar installations, which is in effect until
the end of 2016.10 Stimulus funding in the American Recovery and Reinvestment Act of 2009
(ARRA)11 included a U.S. Department of the Treasury grant in lieu of the ITC, the 1603 program,
under which applicants through the end of 2011 received a 30% cash grant for eligible installed
PV costs.12 Other policy drivers include a federal loan guarantee program and the advanced
manufacturing tax credit along with state renewable portfolio standards in more than half the

6 DOE reported that annual installed solar PV capacity grew at a compound annual growth rate of 61.3% between 2000
and 2010, but provided 0.1% of total electricity generation in 2010. By comparison, U.S. wind installations grew at a
compound annual growth rate of 31.6% from 2000 to 2010 and represented 2.3% of total electricity generation in 2010.
See pp. 25 and 29 of the U.S. Department of Energy’s 2010 Renewable Energy Data Book, which can be accessed at
http://www.nrel.gov/analysis/pdfs/51680.pdf.
7 The White House, Blueprint for a Secure Energy Future, March 30, 2011, p. 32.
8 Two principal technologies are used in concentrated solar power installations. Concentrating Solar Power (CSP)
employs large arrays of mirrors to focus energy on a single point and results in tremendous amounts of heat, creating
steam to turn turbines. CSP projects are large-scale and require high initial investment, thus mainly utilities or large
tower producers use this technology. Examples of CSP manufacturers include Solargenix, Schott Solar, and Solel. In
2010, about 740 MW of CSP was added worldwide, in contrast to the installation of 17 GW of solar PV. See the Duke
University report, Concentrating Solar Power: Clean Energy for the Electric Grid by Gary Gereffi and Kristen Dubay
at http://www.cggc.duke.edu/environment/climatesolutions/greeneconomy_Ch4_ConcentratingSolarPower.pdf.
Concentrated Photovoltaic (CPV) technology, which has been around since the 1970s, uses optics such as lenses to
concentrate a large amount of sunlight onto a small area of solar photovoltaic materials to generate electricity. A 2011
report by the National Renewable Energy Laboratory (NREL), Opportunities and Challenges for Development of a
Mature Concentrating Photovoltaic Power Industry
, by Sarah Kurtz, reports that dozens of companies are developing
new products for the CPV market, such as Concentrix Solar, Cool Earth Solar, Emcore, Greenvolts, and Energy
Innovations. The NREL report can be found at http://www.nrel.gov/docs/fy11osti/43208.pdf.
9 If the ITC lapses in 2016, businesses will remain eligible for a permanent 10% business tax credit for solar
installations and the personal income tax credit for residential installations will end. SEIA, Solar Policies, The
Investment Tax Credit
, http://www.seia.org/cs/solar_policies/solar_investment_tax_credit.
10 For a detailed discussion of energy tax credits see CRS Report R41953, Energy Tax Incentives: Measuring Value
Across Different Types of Energy Resources
, by Molly F. Sherlock.
11 ARRA; P.L. 111-5.
12 CRS Report R41635, ARRA Section 1603 Grants in Lieu of Tax Credits for Renewable Energy: Overview, Analysis,
and Policy Options
, by Phillip Brown and Molly F. Sherlock.
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states, mandating production of electricity from “clean” sources.13 The SunShot initiative to
advance domestic solar-based electricity generation includes various research and development
(R&D) programs to strengthen PV manufacturing in the United States. No nationwide renewable
electricity standard currently exists. However, the Obama Administration and some Members of
Congress have endorsed the concept of a Clean Energy Standard, which would require utilities to
purchase renewable energy.14 While some of these policies do not directly address manufacturing,
greater solar power adoption may support the development of a U.S. solar-energy manufacturing
base.
Over the years, some European and Asian governments have enacted solar-promoting policies,
including tax and electricity rate-payer subsidies, like feed-in tariffs (FITs), to spur their domestic
markets.15 Because of the recent economic crisis, European governments are beginning to
eliminate, reduce, or change their incentive programs for solar power. The Japanese government
has also sustained its domestic solar PV market by offering various inducements including a FIT,
tax incentives, and direct grants for solar PV.16 Elsewhere in Asia, countries such as China,
Malaysia, and the Philippines provide various types of support to develop their domestic solar
manufacturing sectors, which along with low labor costs, have made them hubs for solar PV
production.
Even with decreasing PV prices, producing equipment that generates solar power at prices
competitive with electricity generated from fossil fuels remains a challenge for manufacturers.
This is especially true for utility-scale installations, as wholesale purchasers of electricity will
compare the cost per megawatt hour of solar power directly with the cost of power from other
sources. The cost-competitiveness of solar power is better in the residential and business markets,
as the relevant comparison is with the delivered cost of electricity rather than with the generating
cost. But even if the popularity of solar systems grows, falling equipment prices are likely to
further challenge the profitability of manufacturers and interfere with efforts to sustain a solar
manufacturing base in the United States.
Solar Photovoltaic (PV) Manufacturing
Solar PV manufacturing, previously undertaken by numerous small firms, is rapidly maturing into
a global industry dominated by a far smaller number of producers. Cell manufacturers typically
have proprietary designs that seek to convert sunlight into electricity at the lowest total cost per
kilowatt hour. Vertical integration is becoming more important among the world’s largest solar

13 Information about state-level renewable portfolio standards (RPS) can be found on the EIA’s website, including an
overview of RPS standards, Most States Have Renewable Portfolio Standards, January 2012,
http://www.eia.gov/todayinenergy/detail.cfm?id=4850.
14 The Clean Energy Standard Framework announced by the White House in 2011 is discussed in CRS Report R41720,
Clean Energy Standard: Design Elements, State Baseline Compliance and Policy Considerations, by Phillip Brown.
15 Feed-in tariffs reimburse renewable energy producers at a set price for the electricity they contribute to the grid.
Typical FIT’s also have a guaranteed pricing structure for utility companies purchasing the power and often require
grid connection. In the United States, FIT policies may require utilities to purchase either electricity, or both electricity
and renewable energy attributes from eligible energy generators. A detailed discussion of FIT policy can be founded in
the National Renewable Energy Laboratory (NREL) report, “Feed-In Tariff Policy: Design, Implementation, and RPS
Policy Interaction,”
NREL/TP-6A2-45549, March 2009.
16 Unlike some European countries, Japan continues to support renewable energy. In 2011, it enacted a Renewable
Energy Law, which introduced FITs for solar, wind, biomass, geothermal and small hydro effective July 1, 2012.
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cell and module manufacturers, but many still rely on extensive supply chains for components
such as wafers, glass, wires, and racks. Worldwide, the market for solar PV (including modules,
system components, and installations) expanded from $2.5 billion in 2000 to $71.2 billion in
2010, according to one estimate, with the United States accounting for roughly 7%, or just over
$5 billion, in 2010.17
Historical Overview
Modern photovoltaic technology traces its roots back to 19th-century breakthroughs by scientists
from Europe and the United States. In 1839, a French physicist, Alexandre Edmond Becquerel,
discovered the photovoltaic effect,18 and in 1883, an American inventor, Charles Fritts, made the
first primitive solar cell.19 Progress in modern solar cell manufacturing began in the 1940s and
1950s when Russell Ohl discovered that a rod of silicon with impurities created an electric
voltage when illuminated and three scientists at Bell Laboratories in New Jersey (Daryl Chapin,
Calvin Fuller, and Gerald Pearson) developed the first commercial photovoltaic cell.
Further advancing PV cell manufacturing was the space race of the 1960s, with the competition
between the United States and the former Soviet Union driving demand for solar cells, which
were, and still are, used to power some spacecraft and satellites. 20 The first generation of
photovoltaic manufacturing firms included such names as Hoffman Electronics, Heliotek,21 RCA,
International Rectifier, and Texas Instruments. The technology, however, remained too expensive
for other uses, and the market remained very small.22 The Japanese manufacturer Sharp pioneered
the use of photovoltaics on earth, using them to power hundreds of lighthouses along the Japanese
coast, but it could not identify other applications for which photovoltaics were cost-competitive.
The oil crises of the 1970s hastened the development of modern solar panels by a second
generation of PV firms, which focused on ground applications. Major oil and gas companies
entered the field.23 Exxon underwrote the Solar Power Corporation.24 Atlantic Richfield Company
(ARCO) purchased Solar Technology International and renamed it ARCO Solar in 1977; its
corporate descendant is now part of SolarWorld, presently the largest cell manufacturer in the

17 CleanEdge, The Texas Solar PV Market: A Competitive Analysis, 2011, p. 2.
18 The photovoltaic effect is the basic physical process through which a PV cell converts sunlight into electricity.
Sunlight is composed of photons—packets of solar energy. These photons contain different amounts of energy that
correspond to the different wavelengths of the solar spectrum. When photons strike a PV cell, they may be reflected or
absorbed, or they may pass right through. The absorbed photons generate electricity.
19 Fritts made his first cell from selenium. The semiconductor had a thin coat of gold around it and was not very
effective in generating electricity. The reason, now known, is that selenium is not a very good semiconductor.
20 In 1958, PV solar cells received considerable attention because they partially powered the Vanguard 1 satellite
launched by the United States. PV cells power nearly all of today’s satellites because they can operate for long periods
with virtually no maintenance.
21 Heliotek merged with Spectrolab and produces high-efficiency cells today.
22 Phech Colatat, Georgeta Vidican, and Richard K. Lester, Innovation Systems in the Solar Photovoltaic Industry: The
Role of Public Research Institutions
, Industrial Performance Center Massachusetts Institute of Technology, Cambridge,
MA, June 2009, p. 4, http://web.mit.edu/ipc/research/energy/pdf/EIP_09-007.pdf.
23 Oil and gas companies used solar power to protect wellheads and underground pipelines from corrosion and to power
navigational aids on offshore oil rigs.
24 Elliott Berman, who founded Solar Power Corporation, pioneered a number of manufacturing changes, including
buying cheap solar wafers that had been cast aside by the semiconductor industry, which helped to reduce the cost of
solar cells, lowering the selling price from $100 per watt in 1970 to $20 per watt in 1973.
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United States. First Solar, one of the biggest manufacturers of PV thin-film cells, can trace its
roots to Toledo, OH, where it was established in 1984 as Glasstech Solar.
The first direct federal support for solar manufacturing was during the Carter Administration. The
Energy Tax Act (ETA) of 197825 provided tax credits for homeowners who invested in solar and
certain other technologies. Additionally, the federal government through the Public Utility
Regulatory Policies Act required utilities to purchase power produced by qualified renewable
power facilities.26
Notwithstanding this support, production of solar PV power in the United States remained small.
By the mid-1980s, domestic photovoltaic manufacturers were selling products at a loss and many
were struggling. President Reagan’s Tax Reform Act of 1986 reduced the Investment Tax Credit
(ITC) to 10% in 1988, where it remained until 2005. Because of these policy changes, combined
with the sustained drop in petroleum prices, solar manufacturing slumped until 2005, when
President George W. Bush signed the Energy Policy Act (EPAct).27 That law included a 30% ITC
for property owners who installed commercial and residential solar energy systems.28
The Manufacturing Process
PV systems do not require complex machinery and thousands of parts. In fact, most PV systems
have no moving parts at all. They also have long service lifetimes, typically ranging from 10 to
30 years, with some minor performance degradation over time. In addition, PV systems are
modular; to build a system to generate large amounts of power, the manufacturer essentially joins
together more components than required for a smaller system. These characteristics make PV
manufacturing quite different from production of most other types of generating equipment. In
particular, PV systems offer little opportunity for manufacturers to make customized, higher-
value products to meet unique needs. Manufacturers offer competing technological approaches to
turning sunlight into electricity, but many customers have no reason to care about the technology
so long as the system generates the promised amount of electricity. Economies of scale are
significant, as increasing output tends to lower a factory’s unit costs.
A technology known as crystalline silicon PV accounts for roughly 80% to 85% of global PV
production capacity.29 Production of a crystalline silicon system involves several stages:
Polysilicon manufacturing. Polysilicon, based on sand, is the material used to
make the semiconductors that convert sunlight into electricity. Its production

25 P.L. 9-618. ETA created residential solar credits of up to $2,000 for devices installed on homes. They were in effect
from April 20, 1977 to January 1, 1986.
26 P.L. 95-617. For more information on the history of renewable energy policy see CRS Report RL33588, Renewable
Energy Policy: Tax Credit, Budget, and Regulatory Issues
, by Fred Sissine.
27 P.L. 109-58
28 EPAct tax incentives for solar energy applied from January 1, 2006 through December 31, 2007, and the Tax Relief
and Health Care Act of 2006 (P.L. 109-432) extended these credits for one additional year. For background on the
Solar Investment Tax Credit see SEIA backgrounder, The Case for the Solar Investment Tax Credit, SEIA,
http://www.seia.org/galleries/pdf/The_Case_for_the_Solar_Investment_Tax_Credit.pdf.
29 Business Insights, The Solar Cell Production Global Market Outlook, June 2011, p. 16. In the 1950s, Bell Labs in
New Jersey developed and deployed the first commercial solar cells based on c-Si technology, and Kyocera, a Japanese
manufacturer, started mass production in 1983. Today, no U.S.-headquartered manufacturer ranks among the top ten c-
Si producers in the world.
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requires large processing plants, with the construction of a polysilicon plant
taking about two years and costing between $500 million and $1 billion.30
Polysilicon comprises about a quarter of the cost of a finished solar panel.31
Historically, polysilicon prices have been volatile, because the construction of a
new plant can add a large amount of supply to the market. High polysilicon
prices can adversely affect the profitability of manufacturers further down the
supply chain. A handful of manufacturers from the United States, Europe, and
Japan currently dominate polysilicon production, with much of it now located in
Europe and the United States, 32 but increasingly manufacturers like GLC Solar
from China and OCI from South Korea have expanded their production levels.
Wafer manufacturing. Using traditional semiconductor manufacturing
equipment, wafer manufacturers, including companies such as Sumco, Siltronic,
Nexolon, and MEMC, shape polysilicon into ingots and then slice the ingots into
thin wafers. The wafers are then cut, cleaned, and coated according to the
specifications of the system manufacturers.
Cell manufacturing. Solar cells are the basic building blocks of a PV system.
They are made by cutting wafers into desired dimensions (typically 5 x 5 or 6 x 6
inches) and shapes (round, square, or long and narrow). The manufacturer then
attaches copper leads so the cell can be linked to other cells. Minimizing the area
covered by these leads is a key issue in cell design, as the lead blocks sunlight
from reaching parts of the cell surface and thus reduces potential energy output.
The U.S. Department of Energy estimates that a manufacturing plant to produce
120 MW of cells per year would require an investment of around $40 million.33
Module manufacturing. Modules, which normally weigh 34 to 62 pounds, are
created by mounting 60 to 72 cells on a plastic backing within a frame, usually
made of aluminum.34 The module is covered by solar glass to protect against the
elements and to maximize the efficiency with which the unit coverts sunlight into
power. Production of solar glass is highly capital intensive, and approximately
60% of the global market is controlled by four global manufacturers: Ashai, NSG
Group (Pilkington), Saint Gobain, and Guardian.35 The glass is expensive to ship,

30 Green Rhino Energy, Value Chain Activity: Producing Polysilicon.
http://www.greenrhinoenergy.com/solar/industry/ind_01_silicon.php.
31 Alim Bayaliyev, Julia Kalloz, and Matt Robinson, China's Solar Policy, George Washington University, Subsidies,
Manufacturing Overcapacity & Opportunities, December 23, 2011, p. 16,
http://solar.gwu.edu/Research/ChinaSolarPolicy_BayaKallozRobins.pdf. The semiconductor industry also uses
polysilicon, but increasingly demand for it has shifted to solar PV products.
32 Two of the world’s largest polysilicon manufacturers are U.S.-based companies (Hemlock (a joint venture of Dow
Corning and two Japanese manufacturers Shin Etsu and Mitsubishi) and MEMC. European and Japanese manufacturers
also rank among the world’s leading companies of polysilicon: Renewable Energy Corporation (REC), Wacker-
Chemie, Mitsubishi, and Tokuyama. European Photovoltaic Industry Association, Solar Generation 6, Solar
Photovoltaic Electricity Empowering the World, 2011, p. 27, http://www.greenpeace.org/international/Global/
international/publications/climate/2011/Final%20SolarGeneration%20VI%20full%20report%20lr.pdf.
33 U.S. Department of Energy, Energy Efficiency & Renewable Energy, Solar Photovoltaic Economic Development,
Building and Growing a Local PV Industry, November 2011, p. 53.
34 European Photovoltaic Industry Association, Solar Photovoltaic Electricity Empowering the World, 2011, p. 20.
35 Green Rhino Energy, Value Chain Activity: Manufacturing Solar Glass, http://www.greenrhinoenergy.com/solar/
industry/ind_15_solarglass.php.
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so glass producers tend to locate near module manufacturers.36 In some countries,
module manufacturing is highly automated; in others, more labor-intensive
processes are used.
A newer technology, thin-film PV, accounts for 10-15% of global installed PV capacity. 37
Rather than using polysilicon, these cells use thin layers of semiconductor materials like
amorphous silicon (a-Si), copper indium diselenide (CIS), copper indium gallium
diselenide (CIGS), or cadmium telluride (CdTe). The manufacturing methods are similar
to those used in producing flat panel displays for computer monitors, mobile phones, and
televisions: a thin photoactive film is deposited on a substrate, which can be either glass
or a transparent film. Afterwards, the film is structured into cells. Unlike crystalline
modules, thin-film modules are manufactured in a single step. Thin-film systems are
usually less costly to produce than crystalline silicon systems, but have substantially
lower efficiency rates. 38 On average, thin-film cells convert 5%-13% of incoming
sunlight into electricity, compared to 11%-20% for crystalline silicon cells. However, as
thin film is relatively new, it may offer greater opportunities for technological
improvement.39
Crystalline silicon systems and thin-film systems all make use of a variety of other components,
known as “balance of system” equipment. These include batteries (used to store solar energy for
use when the sun is not shining), charge controllers, circuit breakers, meters, switch gear,
mounting hardware, power-conditioning equipment, and wiring. In the United States, inverters
are also needed to convert the electricity generated from direct current (DC) to alternating current
(AC). Typically, balance of system components are not made by the system manufacturers, but
are sourced from external suppliers.
Similar to many other advanced manufacturing industries, solar panel manufacturing depends on
a global supply chain (see Figure 1 for an overview), with PV manufacturers sourcing products at
each stage of the value chain from suppliers located anywhere in the world. For instance, PV
manufacturers purchase the majority of their solar factory equipment for wafer, cell, and module
production from European and U.S. firms such as Roth & Rau (Germany), Applied Materials
(United States), GT Solar (United States), and Oerlikon Solar (Switzerland). According to an
analysis by Bloomberg New Energy Finance, a system produced by the U.S.-based firm
SunPower may use polysilicon from a Korean supplier, DC Chemical; wafers from a First Philec-
SunPower joint venture in the Philippines; cells manufactured at a SunPower factory in the
Philippines; and modules assembled in Mexico or Poland.40

36 AGC Solar, a Belgium-based company that supplies more than half of the world’s solar glass, is owned by Asahi
Glass of Japan. It produces solar glass for the U.S. market in a factory in Kingsport, TN. Paula Flowers, TN Solar
Energy Activities Update
, TN Chamber of Commerce and Industry, October 7, 2011, p. 6,
http://tnchamber.org/environment/2011_F_3_%20Solar%20Update%20by%20Flowers.pdf.
37 Business Insights, The Solar Cell Production Global Market Outlook, June 2011, p. 17. Thin-film cells trace their
roots to RCA Laboratories in New Jersey, which fabricated the first a-Si cell in 1976.
38 Efficiency, which measures the percentage of the sun’s energy striking the cell or module, is one important
characteristic of a solar cell or module. Over time, average cell efficiencies have increased. EPIA, Solar Generation 6,
Solar Photovoltaic Electricity Empowering the World, 2011, p. 27.
39 Several thin-film module manufacturers are facing challenging market conditions. Some announced Chapter 11
bankruptcy in 2010 and 2011, including Solyndra and Energy Conversion Devices, which owns United Solar Ovonic.
Miasole, another struggling manufacturer, announced layoffs due to “difficult market conditions.”
40 Bloomberg New Energy Finance, Joined at the Hip: the U.S.-China Clean Energy Relationship, May 17, 2010, p. 15,
http://www.wilsoncenter.org/sites/default/files/BNEF_joined_at_the_hip_the_us_china_clean_energy_relationship.pdf.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Figure 1. PV Value Chain


Source: Green Rhino Energy, http://www.greenrhinoenergy.com/solar/technologies/pv_valuechain.php.
Reproduced with permission from Green Rhino Energy.
Each solar panel assembler uses different sourcing strategies, and the levels of vertical integration
vary across the industry. At one extreme, SolarWorld, based in Germany, is highly integrated,
controlling every stage from the raw material silicon to delivery of a utility-scale solar power
plant. At the other extreme, some large manufacturers are pure-play cell companies, purchasing
polysilicon wafers from outside vendors and selling most or all of their production to module
assemblers. A number of solar manufacturers seem to be moving toward greater vertical
integration for better control of the entire manufacturing process. Vertical integration also reduces
the risk of bottlenecks holding up delivery of the final product.
Overall, labor accounts for about 10% of production costs in the industry, with module assembly
accounting for a majority of labor costs in the production process.41 Most stages of production are

41 USITC, Crystalline Silicon Photovoltaic Cells and Modules from China, Publication 4295, December 2011, p. I-13.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

highly automated. A recent study by the U.S. International Trade Commission (ITC) reported that
even the more labor-intensive module assembly process is being automated, and that module
assembly in China and the United States uses similar levels of automation.42 International
transport costs for finished modules are also small, in the range of 1%-3% of value, producers
told the ITC. 43
Production and transportation costs, therefore, do not appear to be the major considerations
determining where manufacturing facilities are located. For example, according to a National
Renewable Energy Laboratory presentation, Chinese producers have an inherent cost advantage
of no greater than 1% compared with U.S. producers; in the U.S. market, China suffers a 5% cost
disadvantage when shipping costs are included.44
Production Locations
With neither labor costs nor transportation costs being decisive, many manufacturers that opened
new facilities over the past decade chose to locate them in countries with strong demand—which
is to say, in countries with attractive incentives for PV installations. Worldwide, the biggest
markets have been Europe (principally Germany, Italy, and Spain) and Japan. Together, they
comprised about two-thirds of the world’s cumulative PV installed capacity of nearly 70 GW in
2011.45 In Europe, until recently, government policies have fueled demand through such policy
mechanisms as feed-in tariffs, which require utilities to purchase renewable power at generous
rates, effectively forcing consumers to subsidize solar power through their electric bills.
The U.S. market for PV products is relatively small, accounting for about 7% of global PV
installations in 2011, but has been growing at a rapid rate (see Figure 2).46 The amount of solar
capacity installed during 2011 was more than twice the 2010 amount.47 The Solar Energy
Industries Association reports that at year-end 2011, cumulative PV capacity in the United States
reached almost 4 GW. Of new installations linked to the electric grid during 2011,
• 43% were for commercial or other non-residential customers, excluding utilities;
• 41% consisted of utility-scale installations, which generally use the largest panels
and provide electricity directly to the electric grid; and
• 16%, the smallest share, were for residential buildings.48

42 USITC, Crystalline Silicon Photovoltaic Cells and Modules from China, Publication 4295, December 2011, pp. 40.
43 USITC, Crystalline Silicon Photovoltaic Cells and Modules from China, Publication 4295, December 2011, pp. V-4.
44 Alan Goodrich, Ted James, and Michael Woodhouse, Solar PV Manufacturing Cost Analysis: U.S. Competitiveness
in a Global Industry
, National Renewable Energy Laboratory, October 10, 2011, p. 26,
http://www.nrel.gov/docs/fy12osti/53938.pdf.
45 European Photovoltaic Industry Association, Market Report 2011, January 2012, p. 4.
http://www.epia.org/publications/photovoltaic-publications-global-market-outlook.html.
46 European Photovoltaic Industry Association, Market Report 2011, January 2012, p. 4.
http://www.epia.org/publications/photovoltaic-publications-global-market-outlook.html.
47 SEIA, U.S. Solar Market Insight Report, 2011 Year-in-Review Executive Summary, March 2012, p. 3,
http://www.slideshare.net/SEIA/us-solar-market-insight-report.
48 SEIA, U.S. Solar Market Insight Report , Q4 2011 & 2011 Year-in-Review Full Report, March 2012, p. 10-17.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Figure 2. U.S. PV Installations and Global Market Share
9,000
16%
8,000
c)
14%
d
)
7,000
W
12%
%
M
(

e (
6,000
10%
ar
h

5,000
S
8%
4,000
arket
stallations
6%
n
3,000
l I
al M
2,000
4%
b
o

nnua
1,000
2%
Gl
A
-
0%
2005 2006 2007 2008 2009 2010 2011 2012E2013E2014E2015E2016E
U.S. PV Installations (MWdc)
U.S. Global Market Share

Source: SEIA/GTM Research “U.S. Solar Market Insight: 2011 Year in Review.”
Notes: The annual instal ed figures cover only grid-connected capacity. DC stands for direct current, the type of
power output by photovoltaic cel s and modules.
Domestic Production
In the United States, manufacturers produced PV modules with a capacity of 1.1 peak gigawatts49
(GW) in 2010, according to the Energy Information Administration.50 By value, combined U.S.
PV cell and module shipments totaled about $6.4 billion in 2010.51 As shown in Table 1, three
firms, SolarWorld, First Solar, and Suniva, accounted for nearly 60% of total domestic cell
production.
Table 1. Cell and Module Production in the United States
in MW, 2010
Company Location
of
Technology
Cells
Modules
% of U.S. Cell
Headquarters
Production
SolarWorld Germany Mono/Multi
c-Si 251
219 22.9%
First Solar
United States
CdTe
222
222
20.2%

49 Peak gigawatts indicate the amount of power a photovoltaic cell or module will produce at standard test conditions
(normally 1 billion watts per square meter and 25 degrees Celsius).
50 EIA only began reporting U.S.-manufactured module shipments separately in 2010. In previous years, it reported
combined domestically manufactured cell and module shipments, so the data are not directly comparable over time.
51 Value includes charges for cooperative advertising and warranties, but does not include excise taxes and the cost of
freight or transportation. EIA, Solar Photovoltaic Cell/Module Shipments Report, January 2012, Table 2, p. 7,
http://www.eia.gov/renewable/annual/solar_photo/. Cell shipments totaled nearly $1.2 billion and module shipments
reached $5.2 billion.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Company Location
of
Technology
Cells
Modules
% of U.S. Cell
Headquarters
Production
Suniva
United States
Mono c-Si
170
15
15.5%
Evergreen Solar
United States
Mono/Multi c-Si
158
158
14.4%
United Solar
United States
a-Si
120
120
10.9%
Solyndra United
States
CIGS
67
67 6.1%
Solar Power
United States
Mono/Multi c-Si
35
31
3.2%
Industries
Abound Solar
United States
CdTe
31
31
2.8%
Miasole United
States
CIGS
20
20
1.8%
Global Solar
United States
CIGS
17
0
1.5%
Al Others


7
382
0.6%
Total

1,098
1,265
100.0%
Source: International Energy Agency, U.S. PV Applications National Survey Report, 2010, May 2011, pp. 17-18.
Notes: C-Si stands for crystalline silicon. Monocrystalline PV cel s are usually cut from a single grown silicon
ingot, while multicrystalline PV cells are manufactured such that wafers are made from multiple crystals.
Monocrystalline PV cells have an efficiency of 16% to almost 20%, while the cheaper to produce mutlicrystalline
PV cells achieve an efficiency of 14% to 15%. Thin-film PV is based on other materials such as amorphous silicon
(a-Si), cadmium telluride (cdTe), or copper iridium di-selenide (CIGS).
The domestic solar manufacturing sector comprises about 100 production facilities making
primary PV components (polysilicon, wafers, cells, modules, and inverters) as reported by
SEIA.52 SolarWorld’s Oregon facility is the largest solar cell and module plant in the United
States, with the capacity to produce 500 megawatts (MW) of solar cells per year at full
production.53 A number of other foreign-based firms, such as Schott Solar, Sanyo, Kyocera, and
Siemens, operate domestic PV primary component plants, and China-based Suntech, the world’s
largest cell and module manufacturer, has a small plant in Arizona.54
As shown in Figure 3, manufacturing facilities for primary solar PV equipment and components
are located throughout the United States, with concentrations of facilities in California, Oregon,
Arizona, Ohio, Texas, and Colorado. As noted above, due to the global supply chains prevalent in
the PV industry, the amount of domestic content may vary considerably from one plant to another.
The map does not include announced facilities that have yet to start operating.
A closer examination of SEIA’s data shows that in 2011, nearly two dozen U.S. facilities either
produced raw materials for the PV industry or were involved in wafer/ingot production. About
another 50 facilities made cells or assembled modules, and some 30 were involved in the
production of solar inverters. SEIA’s list does not include other parts of the PV supply chain, such
as equipment for the PV industry or other balance of system components.

52 Data provided to CRS by SEIA based on statistics from its National Solar Database, April 10, 2012.
53 SolarWorld, with factories in the United States and Europe, is one of the few PV manufacturers with no production
facilities in Asia. Production data for SolarWorld are from Photon International’s annual cell production survey, Year
of the Tiger,
by Garrett Hering, March 2011, p. 205.
54 In 2010, Suntech opened its first manufacturing facility in the United States in Goodyear, AZ, with an annual
production capacity of 50 MW. Suntech’s production capacity in China in that year was 1,800 MW.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Figure 3. U.S. Cell/Module and Polysilicon Production Facilities
2011

Source: Data provided to CRS by SEIA.
Notes: This map is not inclusive of all PV facilities in the United States.
PV production facilities appear to have relatively short life spans, at least in the United States.
Industry data indicate that at least eight U.S. solar manufacturing facilities were closed in 2011.
Of these, five had operated for less than five years. Table 2 lists some recent PV facility closures.
Table 2. Selected Recent PV Facility Closures
Company
Status
Year Online
Year Closed
State
Products
Evergreen Solar, Inc.
Closed
2008
2011
MA
Wafers
MEMC Southwest, Inc.
Closed
1995
2011
TX
Ingots
SolarWorld Americasa Closed
2007
2011
CA
Modules
Solon America Corp.
Closed
2008
2011
AZ
Modules
Solar Power Industries
Closed
2003
2011
PA
Cel s, modules
Solyndra, Inc
Closed
2010
2011
CA
Modules
SpectraWatt, Inc.b Closed
2009
2011 NY Cel s
BP Solarc Closed
1998
2012
MD
Cel s,
modules
Energy Conversion
Suspension of all
2003 2011
MI
Cel s,
modules
Devices
factories/sale pending
Sanyo
Closed one factory
2003
2012
CA
Wafers
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Source: SEIA. Annual Market Reports, 2010 and 2011.
a. SolarWorld purchased the California facility from Royal Dutch Shell in 2006 and expanded it with a $30
million investment. It remains open for sales and marketing activities, but production was moved to Oregon.
b. SpectraWatt was a 2008 spinoff from an internal research project by the Intel Corporation. The company
began shipments from its New York facility in 2010.
c. Plant original y owned by Solarex, which opened it in 1981. In 1995, Amoco/Enron acquired Solarex and
subsequently BP acquired it. In 2005, BP announced plans to double the plant’s capacity.
While some manufacturers have closed their U.S. facilities, others continue to open new U.S.
manufacturing plants or expand existing ones.55 SEIA’s analysis of forthcoming PV
manufacturing facilities notes, “there is a healthy spread across the value chain and technologies
when it comes to new PV plants in the United States.”56 Future plants include a polysilicon
facility (Calisolar) in Mississippi and a wafer manufacturing plant (1366 Technologies) in
Massachusetts. GE Energy is building a $600 million 400 MW state-of-the-art thin-film CdTe
manufacturing plant in Colorado.57 Stion, a CIGS thin-film manufacturer, opened a new factory in
Mississippi in 201158 and began commercial shipments in early 2012.59 Table 3 provides selected
examples of U.S. PV manufacturing plants that could commence operations by 2014.
Table 3. Selected New or Planned PV Plants
Company Status
Date
Online
State
Product
1366 Technologies, Inc.
Planned
2013
MA
Wafers
Abound Solara Planned
2013/2014
IN
Module
Calisolar, Inc.
Planned
2013
MS
Raw Materials
First Solar, Inc.
Construction stopped
2012
AZ
Modules
Fronius USA, LLC
Planned
2012/2016 IN
PV - Inverters
GE Energy
Planned
2012
CO
Modules
Hemlock Semiconductor Corp.
Planned
2012
TN
Raw Materials
SoloPower Planned 2012
OR
Module
Wacker Polysilicon
Under construction
2013
TN
Raw Materials
Source: SEIA. Annual Market Report, 2011.
a. Abound Solar has announced “temporarily eliminating 180 full-time jobs” at its Colorado plant, and plans
for its Tipton, IN plant now appear uncertain. See Abound Solar Production Plan FAQ at
http://www.abound.com/feb28faq.

55 SEIA reports 18 PV manufacturing facilities were added in 2009, 22 in 2010, 15 in 2011. These figures do not
include manufacturers that may have gone out of business in previous years. The number of new PV facilities is
expected to decline to 8 in 2012, 4 in 2013, and 2 in 2014, reports SEIA using information from press reports.
56 SEIA , U.S. Solar Market Insight Report, Q4 2011 & 2011 Year-in-Review Full Report, March 2012, p. 40.
57 Kate Linebaugh, “GE to Build Solar-Panel Plant in Colorado, Hire 355 People,” Wall Street Journal, October 13,
2011. http://online.wsj.com/article/SB10001424052970204002304576629753899008160.html.
58 Stion, "Stion Announces Grand Opening of New Factory in Mississippi," press release, September 16, 2011,
http://www.stion.com/press-releases/110916_Stion_Announces_GrandOpeningofNewFactory.pdf.
59 Stion, "Stion Announces Commercial Shipments from Hattiesburg, Miss., Factory," press release, March 20, 2012,
http://www.stion.com/press-releases/120320_Stion_PVAmerica_HMS.pdf.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

U.S. Solar Manufacturing Employment
As shown in Figure 4, the solar manufacturing sector supported about 25,000 jobs nationwide in
2011, according to SEIA. This accounted for only about one-fourth of U.S. employment related to
the solar energy sector.60 The remaining 75% of the 100,000 full-time workers employed directly
in the solar power industry as of August 2011 are involved in other segments of the industry,
including installation, sales and distribution, project development, research and development, and
finance. 61
Figure 4. Domestic Solar Industry Employment Trends
2006-2012
140000
120000
100000
80000
60000
40000
20000
0
2006
2007
2008
2009
2010
2011
2012
(p)
Installation
Manufacturing
Sales & Distribution
SEIA Total Estimate/Other

Source: SEIA, National Solar Job Census, 2011. 2012 data are preliminary.
Notes: Other refers to project development, R&D, and finance. From 2006 to 2009, SEIA estimated the number
of jobs and did not conduct a census for those years.
The number of solar manufacturing jobs has been relatively flat in recent years, even as total
employment in the solar energy industry increased, according to figures from SEIA.62 This is not
surprising, as the majority of PV cells and modules are made overseas, including many that are

60 The Bureau of Labor Statistics (BLS) does not track employment data for the solar power industry, so the most
authoritative data on solar jobs appear to be those in the National Solar Job Census Report, which can be accessed at
http://www.solarfoundation.org. The count reported in that census includes jobs not related to PV, such as
manufacturing of solar water heating systems.
61 To address the shortfall in data on the green economy, BLS has undertaken a “green jobs” initiative to measure jobs
at establishments that produce green goods and services and use environmentally friendly production processes and
practices. Initial data collection efforts are now underway and include the recent release of employment data on green
goods and services, see http://www.bls.gov/green.
62 The Solar Foundation, National Solar Jobs Census 2011, October 2011, p. 13. The Solar Foundation collects
information on solar industry employment by surveying a “known universe” of firms in various segments of the
industry, including construction, manufacturing, and sales and distribution, to fill the gap in government data. The
Solar Foundation states that its national job census should be viewed as conservative and there may be more solar
workers in the United States than reported in the annual survey.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

manufactured by U.S. companies at offshore facilities. The near-term prospects for increased
employment in solar manufacturing seem limited, as job creation from the opening of new plants
may be outweighed by the jobs lost due to plant closures.
Solar manufacturing is responsible for a very small share of the 11.7 million domestic
manufacturing jobs in 2011, well under 1%. Even given a substantial increase in U.S. solar
manufacturing capacity, that solar PV manufacturing seems unlikely to become a major source of
jobs. Employment growth is likely to depend not only upon future demand for solar energy, but
also on corporate decisions about where to produce solar PV products, including components like
inverters and other balance of system parts.
Global Production Shifts
Recent policy actions by governments in a number of countries, including Germany, Italy, and the
United States, indicate that energy consumers will have smaller incentives to install solar PV
systems than in the recent past.63 This may lessen the industry’s eagerness to maintain production
locations in many different countries. At the same time, due to technological developments and
falling prices for polysilicon, the cost of solar cells and modules has been falling steeply (see
Figure 5).64 SolarBuzz, a market research firm, forecasts that over the next five years module
prices will drop another 43-53% from 2011 levels.65 Price pressures have driven a number of
manufacturers, including the U.S. firms Evergreen Solar and Solyndra and the German
companies Solon and Q-Cells, into bankruptcy, and have led others to lay off workers.

63 See, for example, Ben Sills, "Spain Halts Renewable Subsidies to Curb $31 Billion of Debts," Bloomberg, January
27, 2012.
64 EIA, Solar Photovoltaic Cell/Module Shipments Report 2010, January 2012, p. 2, http://www.eia.gov/renewable/
annual/solar_photo/.
65 SolarBuzz, "World Solar Photovoltaic Market Grew to 27.4 Gigawatts in 2011, Up 405 Y/Y," press release, March
19, 2012, http://www.solarbuzz.com/our-research/recent-findings/world-solar-photovoltaic-market-grew-274-
gigawatts-2011-40-yy.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Figure 5. Average Price of PV Cells and Modules
2001-2010, dol ars per peak watt
4
3.5
3
2.5
2
1.5
1
0.5
0
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
Cells
Modules

Source: U.S. Energy Information Administration, Form EIA-63B, “Annual Photovoltaic Cel /Module Shipments
Report.
The creation of incentives for solar installations in several countries around 2004 led many
companies to enter the PV industry. According to an estimate by Photon International, more than
1,000 PV module manufacturers worldwide supplied the market in 2011.66 But with demand in
some countries declining and prices weak, the industry appears to have entered a phase of rapid
consolidation on a global basis. Meanwhile, some manufacturers in China and Taiwan continue to
expand rapidly to obtain economies of scale and reduce unit costs (see Figure 6), potentially
contributing to global overcapacity in PV production.

66 Christoph Podewils and Beate Knoll, "Crystalline is King," Photon International, February 2012, p. 131.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

Figure 6. Annual Solar Cell Production by Country
In Megawatts, 2000-2010
12000
10000
8000
6000
4000
2000
0
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
China
Taiwan
Japan
Germany
United States
Rest of World

Source: Data compiled by the Earth Policy Institute from GTM Research, http://www.earth-
policy.org/indicators/C47.
China currently exports about 95% of all the PV modules it produces.67 Its domestic market for
solar PV installations was small at less than 1 GW in total installed PV capacity in 2010.
However, China has begun to implement policies to expand domestic solar PV demand, including
direct grants for solar PV installations (close to $3 per watt for systems over 50 kW capacity).68
More recently, it implemented a nationwide feed-in tariff.69 Because of these policies, China’s
solar market may grow quickly, with SEIA forecasting that by 2016 it will be one of the world’s
leading markets by PV installations. By the end of 2011, cumulative installed and connected
capacity in China had risen substantially to 2.9 GW.70 The Indian market also may experience
strong growth if the country aggressively implements its National Solar Mission, which aims to
expand its domestic solar market to 20 GW of electricity by 2020.71

67 The 2010 PVPS Annual Report shows that exports comprised around 95% of China’s production from 2006 to 2010.
See Table 9, PVPS Annual Report 2010, April 14, 2011, p. 51, http://www.iea-pvps.org/index.php?id=6.
68 For a comparison of green energy programs and policies in China and the United States, see CRS Report R41748,
China and the United States—A Comparison of Green Energy Programs and Policies, by Richard J. Campbell.
69 Coco Liu, “China Uses Feed-in Tariff to Build Domestic Solar Market,” New York Times, September 14, 2011
http://www.nytimes.com/cwire/2011/09/14/14climatewire-china-uses-feed-in-tariff-to-build-domestic-25559.html?
pagewanted=1.
70 European Photovoltaic Industry Association, Market Report 2011, January 2012, p. 6, http://www.epia.org.
71 Government of India, Ministry of New and Renewable Energy, Mission Document, http://www.mnre.gov.in/solar-
mission/mission-document-3. Not all of this solar power is expected to come from PV systems.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

There is no dominant player in what is still a highly fragmented industry; more than 100 solar cell
and more than 300 solar module companies are reported to exist in China alone.72 But as some
manufacturers have expanded and others have exited, ten firms now control about half of global
production. Of these, four are based in China and two in Taiwan (see Table 4). All, however, are
pursuing global business strategies.
Table 4. Top PV Cell Manufacturers by Production
2010
% of Global
Plant Locations
Location of
Cell
(current and
Rank Manufacturer Headquarters
Production Founded
planned)
1
Suntech
China
6.6
2001
China, Japan, United
States
2 JA
Solar
China
6.1
2005 China
3 First
Solara
United States
5.9
1990
United States,
Malaysia, Germany
4
Yingli Green Energy
China
4.7
1998
China
5 Trina
Solar
China
4.7
1997 China
6 Q-Cellsb Germany 3.9
1999
Germany,
Malaysia,
Sweden
7 Gintech
Taiwan
3.3
2005 Taiwan
8
Sharp
Japan
3.1
1959
Japan, Italy, United
States, UK, Thailand
9
Motech
Taiwan
3.0
1981
Taiwan and China
10
Kyocera
Japan
2.7
1996
Japan, Czech Republic,
United States
11
Hanwha Solar
South Korea
2.2
2004
China, South Korea
Source: U.S. Department of Energy, 2010 Renewable Energy Databook. Al other manufacturers accounted for
53.7% of global cel production in 2010.
a. In April 2012, First Solar announced it would close its manufacturing operations in Germany by the end of
2012, indefinitely idle some of its production lines in Malaysia, and ultimately reduce its global workforce by
about 2,000 positions, or about 30% of the total. See First Solar April 17, 2012 press release, “First Solar
Restructures Operations to Align with Sustainable Market Opportunities,” for more information,
http://investor.firstsolar.com/releasedetail.cfm?ReleaseID=664717.
b. In April 2012, Q-Cel s announced that it would begin bankruptcy proceedings. For more information see,
Q-Cells, “Q-Cel s SE Filed for Insolvency Proceedings,” April 3, 2012, http://www.q-
cells.com/en/press/article//Q-Cel s-SE-filed-for-insolvency-proceedings.html,

72 Arnufl Jager-Waldau, Research, Solar Cell Production and Market Implementation of Photovoltaics, European
Commission, DG Joint Research Centre, July 2011, p. 83, http://re.jrc.ec.europa.eu/refsys/pdf/PV%20reports/
PV%20Status%20Report%202011.pdf.
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U.S. Solar PV Manufacturing: Industry Trends, Global Competition, Federal Support

U.S. Trade in Solar Products
As part of their global business strategies, U.S. solar panel equipment manufacturers source a
significant share of components outside the United States. Imports of solar cells and panels grew
to nearly $5 billion by 2011 from just $227 million in 2005 (see Table 5).73 PV imports have been
rising for several reasons: (1) increasing crystalline silicon (c-Si) module production in places
like China, Malaysia, and the Philippines; (2) an emergent U.S. market, responding to the falling
price of solar energy; and (3) favorable state polices in key markets like California.74 Solar cell
imports are also rising because more European- and Asian-based firms have established
crystalline module assembly plants in the United States. Some of the cells assembled at these U.S.
assembly plants come from these companies’ facilities overseas.
Two-thirds of solar cells and modules imported into the United States come from Asia. Topping
the list is China, at $2.8 billion, accounting for 56% of all PV imports into the United States in
2011. China’s lead is recent since most of its large PV manufacturers are young companies
established over the last decade.75 Malaysia is another large supplier of PV modules to the United
States, reflecting the greater production capacity of two U.S. companies, First Solar and AUO-
SunPower, and the German producer, Q-Cells.
Until 2008, Japan was the top exporter of solar panels and cells to the United States. By 2011, it
dropped to the fourth-largest PV exporter, at $393 million. PV exports from the Philippines
amounted to $242 million in 2011, largely due to SunPower’s large production facility, where it
does most of its manufacturing.76 Because of investments by foreign PV manufacturers like
Kyocera and Sanyo, which assemble PV modules in Mexico for export, U.S. imports of PV cells
and modules from Mexico have grown, although they still remain small at just over $500 million
in 2011.77 U.S. imports of PV products from South Korea are small, but the country has a stated
goal to capture 10% of the global PV market by 2020.78

73 The primary harmonized tariff schedule codes covering crystalline silicon PV cells, modules or panels are HTS
8541.40.60.30 (cells) and HTS (8541.40.60.20 (modules), with a few import shipments also falling under HTS
8501.60.00.00 and 8507.20.80.
74 Andrew David, U.S. Solar Photovoltaic (PV) Cell and Module Trade Overview, U.S. International Trade
Commission , Executive Briefings on Trade, June 2011, p. 1, http://www.usitc.gov/publications/332/
executive_briefings/Solar_Trade_EBOT_Commission_Review_Final2.pdf.
75 China’s largest solar manufacturer, Suntech, was founded in 2001 and went public in 2005. Among the other large
Chinese solar manufacturers Trina was founded in 1997, JA Solar in 2005, and Yingli in 2007.
76 SunPower’s solar panels are manufactured at its plant in the Philippines, where it operates six assembly lines with a
rated annual solar panel manufacturing capacity of 220 MW. It also uses contract manufacturers in China, Mexico, and
Poland to assemble its solar panels. See p. 10 of SunPower’s 2010 Annual Report, which can be accessed at
http://investors.sunpowercorp.com/annuals.cfm. In 2011, the French oil producer, Total SA, acquired 60% of the
company.
77 Jorge Huacuz Villamar and Jaikme Agredano Diaz, National Survey Report of PV Power Applications in Mexico,
International Energy Agency, May 2011, p. 10, http://www.iea-pvps.org.
78 Jane Burgermeister, “South Korea Taps Germany to Help Grow its Solar Industry,” Renewable Energy World, April
29, 2009. http://www.renewableenergyworld.com/rea/news/article/2009/04/south-korea-looks-to-germany-to-help-
grow-its-solar-industry.
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Table 5. U.S. Imports of Solar Cells and Modules, Select Countries
in U.S. dollars, by selected years
Country
2005 2008 2010 2011 % %
Change,
Change,
2005-
2010-
2011
2011
China $22,185,547
$229,281,465
$1,192,336,468
$2,802,334,973
12,531%
135%
Malaysia $177,539
$19,465
$139,098,366
$562,810,729
316,907%
305%
Mexico
$50,974,121 $213,202,533 $481,120,256 $514,335,119
909%
7%
Japan
$122,436,113
$250,938,688 $301,265,837 $392,681,769
221%
30%
Philippines $645,673
$138,593,374
$27,891,274
$241,912,389 37,367% 767%
World
$227,143,964 $1,240,029,288 $2,644,989,618 $4,975,159,406
2,090%
88%
Source: Global Trade Atlas. These statistics only cover solar cel s and panels (HS 8541406020 and HS
8541406030).
Notes: Imports are shown by domestic consumption.
Allegations of Dumped and Subsidized Solar PV Products from China
In October 2011, the Coalition for American Solar Manufacturing (CASM), led by the U.S. unit
of SolarWorld, along with MX Solar US, Helios Solar Works, and four unnamed companies,79
filed anti-dumping and countervailing duty petitions with the U.S. Department of Commerce
(DOC) and the International Trade Commission (ITC), alleging that Chinese makers of crystalline
silicon photovoltaic cells and modules have injured U.S. producers by selling their products in the
United States at below-market prices.80 The CASM petition asked the Commerce Department to
levy tariffs of up to 250% on solar cells and modules imported from China. In a preliminary
decision in March 2012, the department announced the imposition of modest tariffs of less than
5% on Chinese solar cells and modules.81 A final determination is expected to come later in 2012.

79 Four manufacturers remain anonymous because they fear retaliation by China, possibly with such actions as punitive
market access reductions. For more information see the CASM website at http://www.americansolarmanufacturing.org.
80 In the United States, there are two dispute-resolution systems specifically designed to handle company complaints
about apparently anticompetitive trade practices: anti-dumping and countervailing duty mechanisms. The process for
antidumping and countervailing duty cases such as the one initiated by CASM can be divided into five stages, each
ending with a finding by either the DOC or the ITC. These stages are as follows: 1) initiation of the investigation by the
DOC (20 days after filing the petition); 2) the preliminary phase of the ITC’s investigation into whether U.S. producers
have been injured (with a preliminary determination 45 days after filing of the petition); 3) the preliminary phase of the
DOC investigation (with a preliminary determination 115 days after the ITC’s determination for antidumping cases or
40 days for countervailing duty cases); 4) the final phase of the DOC investigation (with a final determination 75 days
after the DOC’s determination) and 5) the final phase of the ITC’s investigation.
81 The DOC preliminarily assessed duties of 2.9% on Suntech, 4.73% for Trina Solar, and 3.61% for all other Chinese
producers, which will apply retroactively 90 days. The DOC will make a final determination on its countervailing duty
investigation on June 4, 2012. The ITC will rule on the case on July 19, 2012. For a DOC fact sheet, see "Fact Sheet:
Commerce Preliminarily Finds Countervailable Subsidization of Crystalline Silicon Photovoltaic Cells, Whether or Not
Assembled into Modules from the People's Republic of China," press release, March 2012,
http://ia.ita.doc.gov/download/factsheets/factsheet-prc-solar-cells-adcvd-prelim-20120320.pdf.
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The Coalition for Affordable Solar Energy (CASE)82 opposes the CASM petition, claiming that
higher tariffs on PV imports from China would curb domestic demand for solar products, could
erode profit margins across the PV value chain, and might make it even harder for solar energy to
compete with fossil fuels. Another claim by CASE is that a 100% tariff or above could cost the
United States as many as 50,000 net jobs by 2014.83 Chinese manufacturers have also called on
their own Commerce Ministry to initiate an investigation into alleged U.S. subsidies and dumping
of polysilicon exports to China, although such practices, if they are occurring, would lower the
cost of producing finished cells and modules in China.
If the dumping and subsidy cases lead to significant duties against imports from China, Chinese
solar cell and module manufacturers might attempt to shift production to other locations, such as
South Korea, Taiwan, and the European Union, where the duties would not apply. Some Chinese
producers may seek to avoid the duties by opening production in the United States.
Domestic Content
One estimate indicates that in 2010 U.S. content accounted for 20% of the value of U.S.-installed
crystalline silicon modules and 71% of the value of U.S.-installed thin-film modules. These
figures were slightly lower than the 2009 approximations on domestic content of U.S.-installed
crystalline silicon modules and thin-film modules at 24% and 77%, respectively.84 SEIA notes
that there is “nothing intrinsically American about thin film manufacturing, intrinsically foreign
about crystalline silicon production.” It ascribes the higher U.S. value added in thin film to the
fact that U.S. manufacturers like First Solar lead in thin-film production and that the sample size
for thin-film manufacturers is small.
Estimates on the level of U.S.-sourced content for other segments of the PV industry include
inverters, with domestic value increasing from 26% in 2009 to 45% in 2010; mounting structures
up from 84% in 2009 to 94% in 2010; and combiner boxes and miscellaneous electrical
equipment share of domestic value down from 61% in 2009 to 59% in 2010.85 It is not possible to
determine precisely the value of PV components created domestically and how much is imported
because of the complex nature of the solar supply chain.
U.S. Exports
U.S. PV exports to the world remain relatively small at slightly more than $1 billion in 2011, but
more than double the $442.7 million in 2006, according to data compiled from Global Trade
Atlas. The ITC attributes U.S. export expansion to growing overseas markets, an expanding

82 CASE claims to represent 150 solar installation firms, retailers, and system owners, and solar panel manufacturers
owned or operating in the United States. For additional background, see http://coalition4affordablesolar.org/.
83 The source of the 50,000 net jobs figure is a CASE commissioned study by the Brattle Group. See Mark Berkman,
Lisa Cameron, and Judy Chang, The Employment Impacts of Proposed Tariffs on Chinese Manufactured Photovoltaic
Cells and Modules
, The Brattle Group, January 30, 2012, pp. ES-2-6, http://coalition4affordablesolar.org/wp-content/
uploads/2012/01/TBG_Solar-Trade-Impact-Report.pdf.
84 See the GTM Research studies prepared for SEIA, U.S. Solar Energy Trade Assessment 2011, Trade Flows and
Domestic content for Solar-Related Goods and Services in the United States
, August 2011, pp. 25 and 30 and the
November 2010 edition, pp. 25 and 29.
85 SEIA, U.S. Solar Energy Trade Assessment 2011, August 2011, p. 45, see Figure 2-24.
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domestic industry, and a strategy of diversification.86 In 2011, Canada and Germany were the two
largest foreign markets for U.S. solar PV exports at $285 million and $207 million, respectively.
The larger European Union market accounts for the majority of U.S. PV exports. There are
essentially no PV module exports from the United States to China.
U.S. exporters of solar cells and panels generally do not face foreign tariffs because of the
plurilateral Information Technology Agreement (ITA), whose signatories have agreed to eliminate
duties on information technology products.87 Tariffs in other parts of the PV value chain are also
comparably low. For example, the applied tariff on silicon is between zero and 4% in the leading
cell and module producing countries.88 However, non-tariff barriers can be significant, including
local content requirements at the national level or sub-national level in places like India and
Canada and other policies that encourage the use of local content in countries like Italy. Besides
these mandates, import charges and taxes, customs procedures, and divergent product standards
can hinder trade in solar PV components.89 Subsidies for domestic production in major overseas
markets like China are another potential constraint on U.S. exports.90
Several U.S. government programs encourage the export of renewable energy products. Targeting
large emerging markets like India, the Export-Import Bank provides direct loans to solar
manufacturers through its Environmental Products Program, under which it allocates a certain
portion of funding to renewable energy and energy-efficient technologies (RE & EE). Recent Ex-
Im Bank beneficiaries in the solar sector include First Solar, which received a $455.7 million
guarantee to support exports of 90 MW of modules to Canada91 and a $19 million guarantee for
exports to India.92
U.S. Government Support for Solar Power
Federal policies favoring development of a domestic solar power sector include support for the
U.S. solar PV manufacturing industry as well as incentives for solar generation of electricity.

86 Andrew David and Mihir Torsekar, “An Inside Look at U.S. Solar Imports, Exports,” Solar Industry, November
2011.
87 Generally, solar cells and modules enter foreign markets under the harmonized tariff schedule (HTS) 8541.40.60.20
and 8541.40.60.30, which are included in the ITA. The EU, Canada, Japan, India, Malaysia, and China are among its
signatories. Missing from the list of ITA members are countries such as Brazil, Mexico, Chile, and South Africa.
Background on the ITA can be found on the World Trade Organization website at
http://www.wto.org/english/tratop_E/inftec_e/inftec_e.htm.
88 Silicon enters foreign markets under HTS 2804.61. The EU’s applied tariff is zero, China’s is 4%, Malaysia’s is zero,
and the Philippines’ is 3%. South Korea’s applied tariff is 3% for non-FTA member countries, but because of the U.S.-
Korea Free Trade Agreement the duty rate for silicon exports from the United States to South Korea is zero.
89 Jacob Funk Kirkegaard, Thilo Hanemann, and Lutz Weischer, et al., Toward a Sunny Future? Global Integration in
the Solar PV Industry
, Peterson Institute for International Economics, May 2010, pp. 32-34.
90 For more information on solar PV policies by country see, Arnulf Jager_Waldau, PV Status Report 201, European
Commission, July 2011, http://re.jrc.ec.europa.eu/refsys/pdf/PV%20reports/PV%20Status%20Report%202011.pdf.
91 Export-Import Bank of the United States, “Ex-Im Bank Announces over $455 Million in Project Financing for First
Solar’s Exports to Canada,” press release, September 2, 2011, http://www.exim.gov/pressrelease_print.cfm/830B629B-
023E-5C34-5863BEEA2A634632/.
92 Export-Import Bank of the United States, “Ex-Im Bank Supports Renewable Energy Jobs by Financing Solar Power
Projects in India,” press release, March 30, 2011, http://www.exim.gov/pressrelease_print.cfm/0C34ED47-DA59-
908E-85498C3C62B91BB2/.
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• An advanced energy manufacturing tax credit (MTC) was aimed at supporting
renewable energy manufacturers. It reached its funding cap in 2010.
• The Section 1705 Loan Guarantee Program directs funds to manufacturing
facilities that employ “new or significantly improved” technologies.
• The investment tax credit (ITC) provides financial incentives for solar power. It
is in effect to the end of 2016.
• The Section 1603 Treasury Cash Grant Program requires solar projects to begin
construction by December 31, 2011 and be in service by December 31, 2012.
• The Sunshot Initiative is one of several U.S. Department of Energy (DOE)
programs to support the solar industry and increase domestic PV manufacturing.
Advanced Energy Manufacturing Tax Credit (MTC)
The Advanced Energy Manufacturing Tax Credit (MTC), Section 48C, which was included in the
American Recovery and Reinvestment Act of 2009,93 provided a 30% tax credit to advanced
energy manufacturers that invested in new, expanded, or reequipped manufacturing facilities built
in the United States. Solar panel manufacturing was among the 183 projects funded through the
MTC before reaching its cap of $2.3 billion in 2010.94 Solar PV manufacturers benefiting from
the credit including Miasole, Calisolar, First Solar, Suniva, Yingli, SunPower, Suntech, and
Sharp. Plants receiving the credit have until February 17, 2013 to begin operations. Selected
manufacturers of solar PV, and other solar products, that received tax credits under the 48C
program are listed in Appendix Table A-1. The Obama Administration has requested another $5
billion for the 48C credit. An extension of the MTC has been proposed through the Security in
Energy and Manufacturing Act of 2011 (S. 591), or SEAM Act.95 That bill would make one
significant change from the original MTC: higher priority would be given to facilities that
manufacture—rather than assemble—goods in the United States.
DOE Loan Guarantee Programs
The Section 1705 loan program, a temporary ARRA program administered by the Department of
Energy, provided loan guarantees for renewable energy projects, including solar manufacturing
and solar power generation projects. A recent Congressional Research Service report found that
82% of the Section 1705 loan guarantees, or $13.27 billion, have been for solar projects.96
Specifically, sixteen solar projects, including four manufacturing projects, benefitted from the
loan guarantee program before it expired on September 30, 2011 (see Table 6).97 One of the

93 The credit was authorized in Section 1302 of the American Recovery and Reinvestment Act.
94 White House, “President Obama Awards $2.3 Billion for New Clean-Tech Manufacturing Jobs,” press release,
January 8, 2010, http://www.whitehouse.gov/the-press-office/president-obama-awards-23-billion-new-clean-tech-
manufacturing-jobs.
95 Senator Sherrod Brown, "Sen. Brown Introduces Legislation to Expand Manufacturing Tax Credit," press release,
May 6, 2010, http://www.brown.senate.gov/newsroom/press_releases/release/?id=125b64dc-3005-4b71-a6ad-
0b96c24a3c73.
96 The remaining 18% support a variety of projects in other renewable energy sectors, including biofuels, energy
storage, wind generation, transmission, and geothermal electricity. See CRS Report R42059, Solar Projects: DOE
Section 1705 Loan Guarantees
, by Phillip Brown.
97 In April 2012, the Department of Energy announced that it expects to issue conditional loan guarantees “over the
(continued...)
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manufacturers, Solyndra, declared bankruptcy in late 2011 and defaulted on its $535 million loan.
The other three solar manufacturers are subject to the same market conditions and risks that
contributed to the bankruptcy of Solyndra. Recently, Abound Solar announced that it would
temporarily eliminate nearly 200 full-time jobs at its manufacturing facility in Colorado. 98
Table 6. 1705 Loan Guarantees for Solar Generation and Manufacturing Projects
Loan Guarantee
Project Technology
Amount Location
1366 Technologies
Solar Manufacturing
$150 million
Lexington, MA
Abound Solar
Solar Manufacturing
$400 million
Longmont, CO and
Tipton, IN
SoloPower
Solar Manufacturing
$197 million
Portland, OR
Solyndra
Solar Manufacturing
$535 million
Fremont, CA
Abengoa Solar (Mojave
Solar Generation
$1.2 billion
San Bernardino County,
Solar)
CA
Abengoa Solar (Solana)
Solar Generation
$1.446 billion
Gila Bend, AZ
BrightSource Energy
Solar Generation
$1.6 billion
Baker, CA
Cogentrix of Alamosa
Solar Generation
$90.6 million
Alamosa, CO
Exelon (Antelope Val ey
Solar Generation
$646 million
Lancaster, CA
Solar Ranch)
Mesquite Solar 1 (Sempra
Solar Generation
$337 million
Maricopa County, AZ
Mesquite)
NextEra Energy Resources Solar Generation
partial guarantee of
Riverside County, CA
(Desert Sunlight)
$1.46 billion
NextEra Energy Resources Solar Generation
partial guarantee of
Riverside County, CA
(Genesis Solar)
$852 million
NRG Energy (California
Solar Generation
$1.237 billion
San Luis Obispo, CA
Valley Solar Ranch)
NRG Solar (Agua
Solar Generation
$967 million
Yuma County, AZ
Caliente)
Prologis (Project Amp)
Solar Generation
partial guarantee of
28 States
$1.4 billion
SolarReserve (Crescent
Solar Generation
$737 million
Nye County, NV
Dunes)
Source: U.S. Department of Energy, Loan Guarantee Programs Office, https://lpo.energy.gov.
Notes: The 1705 loan guarantee program expired on September 30, 2011.
Recently, the Department of Energy announced that pending applications that were not
considered under the 1705 program due to eligibility requirements or time constraints around the

(...continued)
next several months” for pending renewable energy projects, including solar projects. April 5, 2012 letter from David
Frantz, Acting Executive Director, Loans Program Office, DOE, http://energy.gov/articles/update-1703-loan-program
98 See Abound Solar Production Plan FAQ at http://www.abound.com/feb28faq.
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September 30, 2011 deadline could be considered for loan guarantees under the Section 1703 loan
program,99 which was part of the Energy Policy Act of 2005.100 The 1703 program includes loans
for renewable energy projects that employ “new or significantly improved” technologies that are
not yet in commercial use.101
Investment Tax Credit (ITC)
The Investment Tax Credit was first adopted in 2005 as part of the Energy Policy Act of 2005,102
extended for one additional year in the Tax Relief and Health Care Act of 2006,103 and again for
eight years in the Emergency Economic Stabilization Act of 2008.104 The ITC, allowing
residential and commercial owners of solar projects to offset 30% of a solar system’s cost through
tax credits, is in place through the end of 2016. In practice, developers of utility-scale solar
projects often do not have sufficient income to benefit from the credit, so projects have been
developed through structures that transfer the benefit to third-party “tax equity” investors.
The 2008 economic crisis made the ITC less attractive to solar developers as there were fewer tax
equity investors that could benefit from the value of the incentives. 105 In 2009, as part of ARRA,
the ITC was modified and a new program was adopted which provided a new tax option for solar
power developers: a direct cash grant, which may be taken in lieu of the federal business energy
investment tax credit that they were otherwise entitled to receive.
1603 Cash Grant Program
The Section 1603 Treasury Grant program expired at the end of 2011. It allowed owners of
renewable energy systems to apply for cash grants to cover 30% of the systems’ cost, regardless
of their tax liability. By the end of March 2012, the 1603 Treasury Program awarded grants to
more than 33,000 solar projects totaling $2.1 billion.106 While an ITC, which reduces overall tax
liability, will still be available for solar projects until 2016, it is viewed as a less favorable
incentive than the cash grant.
With the expiration, interested parties without the necessary tax liability will again have to rely on
tax equity investors to fully monetize the ITC. One outgrowth of this situation is a developing
business in third-party ownership of residential and commercial PV systems, with the outside
owner installing and maintaining the systems to take advantage of the tax credit; funding comes
from investors in securities backed by system leases or from agreements to purchase the power.

99 An update on the 1703 loan program was announced on April 5, 2012, http://energy.gov/articles/update-1703-loan-
program.
100 P.L. 109-58
101 1703 program eligibility is described on DOE’s Loan Programs Office website at
https://lpo.energy.gov/?page_id=31.
102 P.L. 109-58
103 P.L. 109-432
104 P.L. 110-343
105 SEIA reported in 2007 there were 20 tax equity providers, which dropped to only 11 in 2009. For additional
background see SEIA, The Crisis in the Tax Equity Market and the Need to Extend the Treasury Grant Program,
September 2010, p. 3, http://seia.org/galleries/pdf/Tax_Equity_Crisis_Slides.pdf.
106 U.S. Department of Treasury, Overview and Status Update of the 1603 Program, March 29, 2012, p. 2,
http://www.treasury.gov/initiatives/recovery/Documents/Status%20overview.pdf.
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SunShot and Other Department of Energy Initiatives
The U.S. Department of Energy, which has set a goal for solar energy to provide 14% of domestic
electricity by 2030 and 27% by 2050, runs a number of efforts intended to create a stronger
domestic PV manufacturing base, under the SunShot Initiative.107 These include
• the PV incubator program, which began in 2007 and aims to support promising
commercial manufacturing processes and products.108
• the PV supply chain and cross-cutting technologies project, which provides up to
$20.3 million in funds to non-solar companies that may have technologies and
practices that could strengthen the domestic PV industry.109
• the Advanced Solar Photovoltaic Manufacturing Initiative, with up to $112.5
million in funding over five years, to advance manufacturing techniques to lower
the cost of producing PV panels.110
• SUNPATH, which stands for Scaling Up Nascent PV At Home and funded at $50
million over two years and aims to increase domestic manufacturing by
supporting industrial-scale demonstration projects for PV modules, cells,
substrates, or module components.111
A separate DOE program to strengthen PV manufacturing is its Advanced Research
Project Agency-Energy program, or ARPA-E, which received $275 million in FY 2012.
ARPA-E funds transformative energy research that is not being supported by other parts
of DOE or the private sector because of technical and financial uncertainty. 1366
Technologies, a silicon PV company, is one solar manufacturer to receive federal funding
through this program.112
Conclusions
Solar manufacturing is currently going through a shakeout, with manufacturers closing U.S.
plants because of difficult global business conditions, stiff competition particularly from Chinese
companies, and slowing demand for solar panels. Beyond that, the extraction of large quantities
of natural gas from shales seems likely to lower the cost of generating electricity from natural
gas. While state-level renewable fuels standards, which require utilities to obtain a certain
proportion of their electricity from renewable sources, may provide continuing demand for

107 U.S. Department of Energy, SunShot Vision Study, February 2012,
http://www1.eere.energy.gov/solar/pdfs/47927.pdf.
108 U.S. Department of Energy, Photovoltaic Technology Incubator, http://www1.eere.energy.gov/solar/
pv_incubator.html.
109 U.S. Department of Energy, Photovoltaic Supply Chain and Cross-Cutting Technologies,
http://www1.eere.energy.gov/solar/sunshot/pv_supply_chain.html.
110 For more information on these programs, see Department of Energy, SunShot Photovoltaic Manufacturing Initiative,
http://www1.eere.energy.gov/solar/sunshot/pvmi.html.
111 EERE, Funding Opportunity Announcements, SUNPATH Part 2, https://eere-exchange.energy.gov/#521ef7df-e162-
4db5-9cf1-7dafd431307f.
112 1366 Technologies, "1336 Technologies Awarded Four Million in ARPA-E Funding," press release, October 26,
2009, http://www.1366tech.com/1366-technologies-awarded-four-million-in-arpa-e-funding/.
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utility-scale PV plants in some states, the lower cost of gas-fired generation may limit interest in
large PV installations.
In some parts of the United States, residential and commercial PV systems produce electricity at
prices competitive with conventional grid electricity, once subsidies are taken into account.
However, although the per-watt cost of solar PV systems has declined significantly, in most areas
of the country solar power is still not competitive with conventional grid electricity. The cost
disadvantage could widen if subsidies are unavailable or if retail electricity prices decline due to
the lower price of natural gas. In the absence of continued government support for solar
installations or for the production of solar equipment, the prospects for expansion of domestic PV
solar manufacturing may be limited.
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Appendix.
Table A-1. Solar PV Manufacturers Receiving a 48C Manufacturing Tax Credit
Ranked by size of credit; credits under $1 million excluded
Tax Credit
Technology
Facility
Applicant Name
Requested
Area
State Updated
Descriptions
Hemlock
$141,870,000 Solar
MI
To expand polycrystalline plant to
Semiconductor
Components and
capacity of 19,200 metric tons per
Corp.
Materials
year
Wacker Polysilicon
$128,482,287 Solar
TN
Plant will produce roughly 10
North America LLC
Components and
metric tons of pure polysilicon
Materials
annual y
Miasole
$91,350,000
Solar PV
CA
Manufacturing of thin-film solar PV
cells and modules
SolarWorld
$82,200,000 Solar
OR
To expand its existing 100 MW
Industries America
Components and
solar PV manufacturing plant to 500
Inc.
Materials
MW
CaliSolar, Inc.
$51,563,980
Solar CSI
CA
New plant to process silicon
feedstock into finished solar cells
E.I. du Pont de
$50,730,000
Solar PV
OH
To expand production of high-
Nemours and Co.
performance polyvinyl fluoride films
Nanosolar
$43,453,309
Solar PV
CA
Will make tools for cell
manufacture, quality control, and
testing
Stion Corporation
$37,500,000
Solar PV
CA
Factory will manufacture high
efficiency (11-12%+) CIGS thin-film
photovoltaic modules on glass
Xunlight
$34,500,000
Solar PV
OH
First product is flexible and
Corporation
lightweight thin-film module which
can be rol ed for shipping
Dow Corning - Solar
$27,300,000
Solar PV
MI
New monosilane facility with 60%
Silane
of output dedicated to production
of amorphous thin-film panels
Jabil Circuit Inc.
$20,400,000
Solar CSI
FL
To retrofit existing plant for PV
panel assembly, logistics,
procurement, and certification
services for cell manufacturers
The Dow Chemical
$17,814,621
Solar PV
MI
To produce PV cel s built into
Company
roofing and siding products
First Solar, Inc.
$16,320,000
Solar PV
OH
Expand plant to produce thin-film
modules using cadmium telluride
(CdTe) as semiconductor material
Abound Solar, Inc.
$12,600,000
Solar PV
CO
Will expand manufacturing capacity
of PV panels using CdTe
Miasole
$10,450,200
Solar PV
CA
Plant will manufacture thin-film
solar PV cells and modules
Suniva, Inc.
$5,700,000
Solar CSI
GA
Factory will make monocrystalline
silicon-based solar cells
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Tax Credit
Technology
Facility
Applicant Name
Requested
Area
State Updated
Descriptions
Centrosolar Oregon
$4,740,000
Solar CSI
OR
Plans to build a manufacturing plant
LLC
for PV solar modules based on
crystalline silicon cells
Yingli Green Energy
$4,534,320
Solar CSI
AZ
Plans to open a manufacturing
Americas
facility to produce PV modules
Solar Power
$3,756,000
Solar CSI
PA
Plans to produce multicrystalline
Industries, Inc.
cells
Amonix, Inc
$3,629,998
Solar PV
AZ
To manufacture low-cost solar
systems using inexpensive plastic
lenses that concentrate sunlight
Sumco Phoenix
$2,674,236
Solar
NM
Plant will manufacture silicon solar
Components and
blocks
Materials
The Dow Chemical
$2,220,000
Solar PV
OH
Factory to produce special coatings
Company
for use in solar cell manufacture
Suntech
$2,105,848
Solar CSI
AZ
Plans to manufacture poly-
crystalline solar modules
Spire
$2,044,500
Solar PV
NH
Will manufacture very high-
Semiconductor, LLC
efficiency concentrator PV cells and
receiver assemblies
Solar Power
$1,611,083
Solar CSI
PA
Plans to produce silicon bricks,
Industries, Inc
wafers, solar power systems, and
solar module components
Advanced Energy
$1,230,000 Solar
CO
Plans to establish a manufacturing
Industries, Inc.
Components and
facility for inverters
Materials
Applied
$1,068,986
Solar PV
NJ
Factory to manufacture solar
Photovoltaics, LLC
energy modules for use in building
integrated photovoltaics
Source: White House Fact Sheet.
Notes: Projects must be commissioned before February 17, 2013.

Author Contact Information

Michaela D. Platzer

Specialist in Industrial Organization and Business
mplatzer@crs.loc.gov, 7-5037

Acknowledgments
Thanks to Amber Wilhelm for contributing the graphics to this report.
Congressional Research Service
29