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==Solar photovoltaic power==
==Solar photovoltaic power==
===Prospects===
The US photovoltaic market amounted to 440 megawatts peak in 2009. Of this, 372
megawatts were accounted for by plants with an peak output above 200 kilowatts
each.<ref name = renin/> Current trends indicate that a large number of photovoltaic power plants will be built, particularly in the south and southwest areas, where there is ample land in the sunny deserts of California, Nevada and Arizona. Large properties are being bought there with the aim of building more ultility-scale PV power plants.<ref name = renin>Renewables Insight (2010). [http://www.pv-power-plants.com/fileadmin/user_upload/PVPP_2010_web.pdf PV Power Plants 2010: Industry Guide] p. 12.</ref>

===Cell makers===
===Cell makers===
New manufacturing facilities for solar cells and modules in Massachusetts, Michigan, Ohio, Oregon, and Texas promise to add enough capacity to produce thousands of megawatts of solar devices per year within the next few years from 2008:<ref>[http://apps1.eere.energy.gov/news/news_detail.cfm/news_id=12065 U.S. Solar Power Manufacturing Growing Dramatically] October 29, 2008 retrieved 28 March 2009</ref>
New manufacturing facilities for solar cells and modules in Massachusetts, Michigan, Ohio, Oregon, and Texas promise to add enough capacity to produce thousands of megawatts of solar devices per year within the next few years from 2008:<ref>[http://apps1.eere.energy.gov/news/news_detail.cfm/news_id=12065 U.S. Solar Power Manufacturing Growing Dramatically] October 29, 2008 retrieved 28 March 2009</ref>

Revision as of 04:11, 28 November 2010

President Barack Obama addressed an audience of more than 450 people at the Nellis Solar Power Plant on May 27, 2009.
File:Moody Sunburst.jpg
A parabolic trough is the most widely deployed and proven type of solar thermal power plant.[1]

Solar power in the United States is an area of considerable activity and there are many utility-scale solar power plants. The largest solar power installation in the world is the Solar Energy Generating Systems facility in California, which has a total capacity of 354 megawatts (MW). Nevada Solar One is a solar thermal plant with a 64 MW generating capacity, located near Boulder City, Nevada. The DeSoto Next Generation Solar Energy Center is a 25 MW photovoltaic solar power facility in DeSoto County, Florida. The Nellis Solar Power Plant is a 14 MW solar photovoltaic system at Nellis Air Force Base in Nevada. The Ivanpah Solar Power Facility is a 392 MW solar thermal power facility which is under construction in south-eastern California.[2] There are plans to build many other large solar plants in the United States and the largest of these is the proposed 968 MW Blythe Solar Power Project to be located in Riverside County, California.

Availability

US annual average solar energy received by a latitude tilt photovoltaic cell (modeled).

Sunlight is by far the world's most used energy resource. A 1993 report by the DOE found that available domestic resources from solar, that would be theoretically accessible regardless of cost, represented 586,687 Quadrillion BTUs (Quads). Coal represented the second largest resource, a distant 38,147 Quads. The report stipulated that 95% of this potentially recoverable energy was from burning biomass. Predictions of how much solar power was economically feasible to collect amounted to 352 quads, compared with 5,266 quads from coal. The assumptions used in the report were based on a predicted 2010 price of a barrel of oil being $38.[3] The total annual energy consumption of the United States in 2007 was approximately 100 Quads,[4] less than 0.5% of that theoretically available from sunlight.

Growth

Solar energy deployment increased at a record pace in the United States and throughout the world in 2008, according to industry reports. The Solar Energy Industries Association's "2008 U.S. Solar Industry Year in Review" found that U.S. solar energy capacity increased by 17% in 2007, reaching the total equivalent of 8,775 megawatts (MW). The SEIA report tallies all types of solar energy, and in 2007 the United States installed 342 MW of solar photovoltaic (PV) electric power, 139 thermal megawatts (MWTh) of solar water heating, 762 MWTh of pool heating, and 21 MWTh of solar space heating and cooling.[5]

A report finds that solar power's contribution could grow to 10% of the nation's power needs by 2025. The report, prepared by research and publishing firm Clean Edge and the nonprofit Co-op America, projects nearly 2% of the nation's electricity coming from concentrating solar power systems, while solar photovoltaic systems will provide more than 8% of the nation's electricity. Those figures correlate to nearly 50,000 megawatts of solar photovoltaic systems and more than 6,600 megawatts of concentrating solar power.[6]

As noted in the report, solar power has been expanding rapidly in the past eight years, growing at an average pace of 40% per year. The cost per kilowatt-hour of solar photovoltaic systems has also been dropping, while electricity generated from fossil fuels is becoming more expensive. As a result, the report projects that solar power will reach cost parity with conventional power sources in many U.S. markets by 2015. But to reach the 10% goal, solar photovoltaic companies will also need to streamline installations and make solar power a "plug-and-play" technology, that is, it must be simple and straightforward to buy the components of the system, connect them together, and connect the system to the power grid.[6]

The report also places some of the responsibility with electric utilities, which will need to take advantage of the benefits of solar power, incorporate it into future "smart grid" technologies, and create new business models for building solar power capacity. The report also calls for establishing long-term extensions of today's investment and production tax credits, creating open standards for connecting solar power systems to the grid, and giving utilities the ability to include solar power in their rate base.[6]

Solar thermal power

File:Esolar 13.jpg
The 5 MW Sierra SunTower facility in Lancaster, California employs a field of heliostats concentrating sunlight onto a central tower.
The Holaniku at Keahole Point 2 MW concentrating parabolic trough solar power installation in Kona, Hawaii.
File:Fresnel reflectors ausra.jpg
Nevada Solar One's fresnel reflectors are not as efficient as parabolic mirrors but are much cheaper.

Existing plants

The U.S. pioneered solar tower and trough technologies. A number of different solar thermal technologies are in use in the U.S. The largest and oldest solar power plant in the world is the 354 MW SEGS thermal power plant, in California.[7] The 64MW Nevada Solar One uses parabolic trough technology in one of the largest solar plants in the world. The 5 MW Kimberlina Solar Thermal Energy Plant demonstrates a fresnel reflector technology. Sierra SunTower is a 5 MW commercial concentrating solar power tower in Lancaster, California and is the only CSP tower facility operating in North America, as the pioneering Solar One and Solar Two experiment have been dismantled. The 1.5 MW Maricopa Solar is the first Dish Stirling power plant. The 2 MW Holaniku MicroCSP Solar Thermal Plant at the Natural Energy Laboratory of Hawaii Authority is the World's first MicroCSP power plant. In mid-2010, the U.S. produces more than half of all solar thermal power in the world, although Spain has a rapidly increasing number of plants.

Under construction

The Ivanpah Solar Power Facility is a 392 megawatt (MW) solar power facility which is under construction. It will consist of three separate solar thermal power plants in south-eastern California. The facility will consist of fields of heliostat mirrors focusing solar energy on boilers located on centralized power towers. The first phase of the Ivanpah facility began construction in late 2010.[2]

Proposed plants

The Blythe Solar Power Project is a proposed 968 MW solar thermal power station to be located in Riverside County, California. It will be of parabolic trough design, and the companies involved are Solar Millennium and Chevron.[8]

The Calico Solar Energy Project is a proposed 850 MW solar thermal power station to be located in San Bernardino County, California. It will be of stirling engine design and the company involved is Tessera Solar.[8]

The Imperial Valley Solar Project (formerly SES Solar Two) is a proposed 709 MW solar thermal power station to be located in Imperial County, California. It will be of stirling engine design and the company involved is Tessera Solar.[8]

Solel has signed a contract with Pacific Gas and Electric (PG&E) to build the world's largest solar plant in the Mojave Desert. When fully operational in 2011, the proposed Mojave Solar Park will have an installed capacity of 553 megawatts of solar power, calculated to power 400,000 homes, to PG&E’s customers in northern and central California. The plant will cover up to 6,000 acres (2,400 ha) of land.[9][10]

The Genesis Solar Energy Project is a proposed 250 MW solar thermal power station to be located in Riverside County, California. It will be of parabolic trough design, and the company involved is NextEra Energy Resources.[8]

AV Solar Ranch One (34°47′N 118°26′W / 34.783°N 118.433°W / 34.783; -118.433 (AV Solar Ranch One)) is a proposed 230 MW power station owned by NextLight Renewable Power. The photovoltaic array will occupy about 2,100 acres (850 ha) in the Antelope Valley. If the project begins construction in 2010, it is expected to be fully operational by 2013, producing about 600 gigawatt-hours (GW·h) of energy annually — enough to meet the needs of 70,000 homes. The cost of the project has not been disclosed, but in June 2009, Pacific Gas & Electric (PG&E) announced an agreement with NextLight to buy the power produced by the project for 25 years for not more than 13.3 ¢/kW·h.[11][12][13]

Solar photovoltaic power

Prospects

The US photovoltaic market amounted to 440 megawatts peak in 2009. Of this, 372 megawatts were accounted for by plants with an peak output above 200 kilowatts each.[14] Current trends indicate that a large number of photovoltaic power plants will be built, particularly in the south and southwest areas, where there is ample land in the sunny deserts of California, Nevada and Arizona. Large properties are being bought there with the aim of building more ultility-scale PV power plants.[14]

Cell makers

New manufacturing facilities for solar cells and modules in Massachusetts, Michigan, Ohio, Oregon, and Texas promise to add enough capacity to produce thousands of megawatts of solar devices per year within the next few years from 2008:[15]

In late September 2008, Sanyo Electric Company, Ltd. announced its decision to build a manufacturing plant for solar ingots and wafers (the building blocks for silicon solar cells) in Salem, Oregon. The plant will begin operating in October 2009 and will reach its full production capacity of 70 megawatts (MW) of solar wafers per year by April 2010.

In early October 2008, First Solar, Inc. broke ground on an expansion of its Perrysburg, Ohio, facility that will add enough capacity to produce another 57 MW per year of solar modules at the facility, bringing its total capacity to roughly 192 MW per year. The company expects to complete construction early next year and reach full production by mid-2010.

SolarWorld plant in Hillsboro, Oregon

And in mid-October 2008, SolarWorld AG opened a manufacturing plant in Hillsboro, Oregon, that is expected to produce 500 MW of solar cells per year when it reaches full production in 2011.

Production is also growing for manufacturers of flexible thin-film solar modules. Energy Conversion Devices, Inc. (ECD)—a manufacturer of thin-film modules deposited on flexible stainless steel—has announced plans to build a facility in Battle Creek, Michigan, that will produce 120 MW of solar modules per year. ECD will start construction in fall 2008, with production starting by the end of 2009. ECD has the option of doubling its production capacity in Battle Creek and has plans to reach 1,000 MW of annual production by 2012. Konarka Technologies, Inc. deposits its solar modules onto a flexible plastic substrate, and the company has just reopened a former Polaroid Corporation facility in New Bedford, Massachusetts, that has been converted into a production facility for Konarka's "Power Plastic" solar modules. Konarka expects the facility to reach its capacity to produce of 1,000 MW of solar modules per year by 2011. Both companies employ a roll-to-roll processing, similar to a newspaper printing press, for the manufacture of their solar modules. The manufacturing process offers the possibility of achieving high production capacities at a lower cost than most solar cell manufacturing plants.

HelioVolt Corporation opened a manufacturing facility in Austin, Texas, that will have an initial capacity to produce 20 MW of solar cells per year. Starting with solar "inks" developed at DOE's National Renewable Energy Laboratory that are deposited with ink jets, HelioVolt employs a proprietary "printing" process to produce solar cells consisting of thin films of copper indium gallium selenide, or CIGS. The technology won an R&D 100 Award in 2008 and it earned an Editor's Choice Award for Most Revolutionary Technology. HelioVolt's "FASST" reactive transfer printing process is 10-100 times faster than other CIGS production processes and can also be combined with vacuum evaporation or ultrasonic spray deposition techniques. At its new Austin manufacturing plant, HelioVolt plans to produce both solar modules and next-generation building-integrated solar products using its FASST process.

In Aug 2009, The first project under Renewable Ventures' Solar Fund V, a US$200 million fund designed to finance and develop around 35MW of solar projects over the next year, has selected Trina Solar’s c-Si modules for a 2MW Colorado State University campus project that is under construction.[16]

Large-scale PV facilities

President Barack Obama talks at the DeSoto Next Generation Solar Energy Center
Solar array at Nellis Air Force Base. These panels track the sun in one axis. Credit: U.S. Air Force photo by Senior Airman Larry E. Reid Jr.

The DeSoto Next Generation Solar Energy Center is a photovoltaic solar power facility in Arcadia, DeSoto County, Florida owned by Florida Power & Light (FPL).[17] President Barack Obama attended the plant's commissioning on October 27, 2009.[18] With a nameplate capacity of 25 megawatts (MW) DC, it is the largest solar photovoltaic plant in the USA as of 2009.[19] It will produce an estimated 42,000 megawatt-hours (MW·h) of electricity per year.[20]

The 21 megawatt Blythe Photovoltaic Power Plant is the largest photovoltaic (PV) solar project in California. It is located in Blythe, California, in Riverside County about 200 miles east of Los Angeles.[21] Commercial operation began in December 2009. Electricity generated by the power plant is being sold to Southern California Edison under a 20-year power purchase agreement.[21]

The Nellis Solar Power Plant is located within Nellis Air Force Base in Clark County, Nevada, on the northeast side of Las Vegas. The Nellis solar energy system will generate in excess of 25 million kilowatt-hours (kW·h) of electricity annually and supply more than 25 percent of the power used at the base.[22] The system was inaugurated in a ceremony on December 17, 2007, with Nevada Governor Jim Gibbons activating full operation of the 14 megawatt (MW) array.[23][24]

Proposed PV plants

Large systems in planning or under construction
Name of Plant DC
Peak
Power
(MW)		 GW·h
/year		 Capacity
factor		 Notes
Topaz Solar Farm [25] 550 1,100 0.23 Thin film CdTe from First Solar**
Desert Stateline [26][27] 300 673 Scheduled to be completed in 2015 **
Desert Sunlight [26][27] 250 571 Scheduled to be completed in 2015 **
AV Solar Ranch One [28] 230 600 0.30 **
High Plains Ranch [29] [25] 210 550 0.25 Scheduled to be completed in 2012 **
KCRD Solar Farm[30][31][32] 80 Scheduled to be completed in 2012 **
Copper Mountain Solar Farm[33][26] 48 100 * Expected to be completed by 2011
Cimarron Solar Farm[34] 30 60 * Expected to be completed by December 2010
Davidson County Solar Farm[35] 21.5 36 individual structures**

Incentives

Main articles: Building-integrated photovoltaic, net metering, and Feed-in Tariff

A complete list of incentives is maintained at the Database of State Incentives for Renewable Energy (DSIRE) (see external link).

Most are grid connected and use net metering laws to allow use of electricity in the evening that was generated during the daytime. New Jersey leads the nation with the least restrictive net metering law,[36] while California leads in total number of homes which have solar panels installed. Many were installed because of the million solar roof initiative.[37]

Federal

The federal tax credit for solar was extended for eight years as part of the financial bail out bill, H.R. 1424, until the end of 2016. It was estimated this will create 440,000 jobs, 28 gigawatts of solar power, and lead to a $300 billion investment in solar energy. This estimate did not take into account the removal of the $2,000 cap on residential tax credits at the end of 2008.[38]

  • A 30% tax credit is available for residential and commercial installations.[39][40] For 2009 and 2010 this is a 30% grant, not a tax credit, for installations begun before the end of 2010 and completed before the end of 2016, thus making it available to those not paying federal tax, such as schools, local governments, and non-profit organizations.

Solar America Initiative

The United States Department of Energy (DOE) announced on September 29, 2008 that it will invest $17.6 million, subject to annual appropriations, in six company-led, early-stage photovoltaic (PV) projects under the Solar America Initiative's "PV Incubator" funding opportunity. The "PV Incubator" project is designed to fund prototype PV components and systems with the goal of moving them through the commercialization process by 2010. The 2008 award will be the second funding opportunity released under the PV Incubator project. With the cost share from industry, which will be at least 20%, up to $35.4 million will be invested in these projects. The projects will run for 18 months, and will be subcontracted through DOE's National Renewable Energy Laboratory.

Most of the projects will receive up to $3 million in funding, with the exception of Solasta and Spire Semiconductor, which will receive up to $2.6 million and $2.97 million, respectively. Massachusetts-based 1366 Technologies will develop a new cell architecture for low-cost, multi-crystalline silicon cells, which will enhance cell performance through improved light-trapping texturing and grooves for self-aligned metallization fingers. California's Innovalight will useink-jet printing to transfer their "silicon ink" onto thin-crystalline silicon wafers to produce high-efficiency, low-cost solar cells and modules. Skyline Solar, also in California, will develop an integrated, lightweight, single-axis tracked system that reflects and concentrates sunlight over 10 times onto silicon cells. [Solasta, in Massachusetts, is working on a novel cell design that increases currents and lowers the materials cost. Solexel, another California-based company, will commercialize a disruptive, 3D high-efficiency mono-crystalline silicon cell technology that dramatically reduces manufacturing cost per watt. Finally, Spire Semiconductor in New Hampshire will develop three-junction tandem solar cells that better optimize the optical properties of their device layers; the company is targeting cell efficiencies over 42% using a low-cost manufacturing method.

The PV Incubator project is part of the Solar America Initiative, which aims to make solar energy cost-competitive with conventional forms of electricity by 2015 (grid parity).[41] The Solar America Initiative (SAI)[42] is a part of the Federal Advanced Energy Initiative to accelerate the development of advanced photovoltaic materials with the goal of making it cost-competitive with grid electricity by 2015 (grid parity).

The U.S. Department of Energy Solar Energy Technology Program (SETP) will achieve the goals of the SAI through partnerships and strategic alliances by focusing primarily on four areas:

  • Market Transformation — activities that address marketplace barriers and offer the opportunity for market expansion
  • Device and Process Proof of Concept — R&D activities addressing novel devices or processes with potentially significant performance or cost advantages
  • Component Prototype and Pilot-Scale Production — R&D activities emphasizing development of prototype PV components or systems produced at pilot-scale with demonstrated cost, reliability, or performance advantages
  • System Development and Manufacturing — collaborative R&D activities among industry and university partners to develop and improve solar energy technologies

The Solar America Showcases activity is part of the Solar America Initiative (SAI), and preference is given to large-scale, highly visible, highly replicable installations that involve cutting-edge solar technologies or novel applications of solar.[43]

States and local

  • The San Francisco Board of Supervisors passed solar incentives of up to $6,000 for homeowners and up to $10,000 for businesses.[44] Applications for the program began on July 1, 2008.[45]
  • Berkeley initiated a revolutionary program where homeowners are able to add the cost of solar panels to their property tax assessment, and pay for them out of their electricity cost savings.[46] In 2009, more than a dozen states passed legislation allowing property tax financing. In all, 27 states offer loans for solar projects.[47]
  • The California Solar Initiative has set a goal to create 3,000 megawatts of new, solar-produced electricity by 2016.
  • New Hampshire has a $6,000 residential rebate program for up to 50% of system cost for systems less than 5 kWp installed on or after July 1, 2008.[48]

Feed-in Tariff

California decided that it was not moving forward fast enough on photovoltaic generation and has enacted a Feed-in Tariff.[49][50] Washington state has a feed-in tariff of 15 ₡/kWh which increases to 54 ₡/kWh if components are manufactured in the state.[51] Hawaii and Michigan are also considering feed in tariffs. A comparison of the 38 states plus Washington D.C. which have net metering gives five an A and five an F.[52]

In 2010, the Federal Energy Regulatory Commission (FERC) ruled that states were unable to implement above-market feed-in tariffs because setting wholesale electricity rates was pre-empted by the Federal Power Act (FPA).[53]

Solar Renewable Energy Certificates

In recent years, states that have passed Renewable Portfolio Standard (RPS) or Renewable Electricity Standard (RES) laws have relied on the use of Solar Renewable Energy Certificates (SRECs) to meet state requirements. This is done by adding a specific solar carve-out to the state Renewable Portfolio Standard (RPS). The first SREC program was developed in 2004 by the state of New Jersey and has since expanded to several other states, including Maryland, Delaware, Pennsylvania, Ohio, Massachusetts, North Carolina and Pennsylvania.[54]

An SREC program is an alternative to the feed-in tariff model popular in Europe. The key difference between the two models is the market-based mechanism that drives the value of the SRECs, and therefore the value of the subsidy for solar. In a feed-in tariff model, the government sets the value for the electricity produced by a solar facility. If the level is too high, too much solar power is built and the program is more costly. If the feed-in tariff is set too low, not enough solar power is built and the program is ineffective.

Statistics

US Grid-Connected PV Capacity (MW)[55][56][57]
No Jurisdiction 2009 2008 2007
United States 1,256.0 792.0 476.0
1 California 768.0 528.3 328.8
2 New Jersey 127.5 70.2 43.6
3 Colorado 59.1 35.7 14.6
4 Arizona 46.2 25.3 18.9
5 Florida 38.7 3.0 2.0
6 Nevada 36.4 34.2 18.8
7 New York 33.9 21.9 15.4
8 Hawaii 26.2 13.5 4.5
9 Connecticut 19.7 8.8 2.8
10 Massachusetts 17.7 7.5 4.6
11 Oregon 14.0 7.7 2.8
12 North Carolina 12.5 4.7 0.7
13 Texas 8.6 4.4 3.2
14 Pennsylvania 7.3 3.9 0.9
15 Maryland 5.6 3.1 0.7
16 Wisconsin 5.3 3.1 1.4
17 Washington 5.2 3.7 1.9
18 Illinois 4.5 2.8 2.2
19 Delaware 3.2 1.8 1.2
20 New Mexico 2.4 1.0 0.5
21 Ohio 2.0 1.4 1.0
22 Minnesota 1.9 1.0 0.5
23 Vermont 1.7 1.1 0.7
24 D.C. 1.0 0.7 0.5
25 Tennessee 0.9 0.4 0.4
26 Virginia 0.8 0.2 0.2
27 Michigan 0.7 0.4 0.4
28 Montana 0.7 0.7 0.5
29 New Hampshire 0.7 0.1 0.1
30 Rhode Island 0.6 0.6 0.6
31 Utah 0.6 0.2 0.2
32 Indiana 0.3 <0.1 <0.1
33 Maine 0.3 0.3 0.2
34 Alabama 0.2 <0.1 <0.1
35 Arkansas 0.2 <0.1 <0.1
36 Georgia 0.2 <0.1 <0.1
37 Idaho 0.2 <0.1 <0.1
38 Louisiana 0.2 <0.1 <0.1
39 Missouri 0.2 <0.1 <0.1
40 Mississippi 0.1 <0.1 <0.1
41 South Carolina 0.1 <0.1 <0.1
42 Wyoming 0.1 <0.1 <0.1
43 Alaska <0.1 <0.1 <0.1
44 Iowa <0.1 <0.1 <0.1
45 Kansas <0.1 <0.1 <0.1
46 Kentucky <0.1 <0.1 <0.1
47 Nebraska <0.1 <0.1 <0.1
48 North Dakota <0.1 <0.1 <0.1
49 Oklahoma <0.1 <0.1 <0.1
50 South Dakota <0.1 <0.1 <0.1
50 West Virginia <0.1 <0.1 <0.1

See also

References

  1. ^ Elisa Wood. The Only Way Is Up: CSP Builds Up Heat Renewable Energy World, 29 July 2010.
  2. ^ a b Steven Mufson. Solar power project in Mojave Desert gets $1.4 billion boost from stimulus funds Washington Post, February 23, 2010.
  3. ^ Table 1. Accessible Resources, regardless of cost
  4. ^ Annual Energy Outlook 2009 with Projections to 2030
  5. ^ Solar Energy Grew at a Record Pace in 2008
  6. ^ a b c Study: Solar Power Could Provide 10% of U.S. Electricity by 2025 June 25, 2008 retrieved 25 June 2009
  7. ^ SEGS III, IV, V, VI, VII, VIII & IX
  8. ^ a b c d Top 6 Utility-scale Fast-tracked Solar Projects Renewable Energy World, September 1, 2010.
  9. ^ Israeli company to build largest solar park in world in US Ynetnews, July 26, 2007. Retrieved December 18, 2008.
  10. ^ Looking to the sun, Tom Parry, Canadian Broadcasting Corporation, August 15, 2007.
  11. ^ "AV Solar Ranch One". NextLight Renewable Power LLC. 2009. Retrieved 2009-06-06.
  12. ^ "PG&E Purchases More Solar Power to Serve California Customers". PRNewswire. June 5, 2009. Retrieved 2009-06-06.
  13. ^ Sweet, Cassandra (June 5, 2009). "CORRECT: NextLight, Not EIX Unit Owns Land For Solar Farm". The Wall Street Journal. Retrieved 2009-06-06. [dead link]
  14. ^ a b Renewables Insight (2010). PV Power Plants 2010: Industry Guide p. 12.
  15. ^ U.S. Solar Power Manufacturing Growing Dramatically October 29, 2008 retrieved 28 March 2009
  16. ^ "Trina Solar modules selected for 2MW Colorado campus project". Pv-tech. 2009-08-11.
  17. ^ eXenewable Project Profile Page - DeSoto, PV, US
  18. ^ "President Obama joins FPL for commissioning of nation's largest solar PV power plant; announces $200 million in smart grid funding for FPL's 'Energy Smart Florida'". Florida Power & Light (FPL). October 27, 2009. Retrieved 2009-11-01. {{cite news}}: Check date values in: |date= (help)
  19. ^ "FPL Commissions DeSoto Next Generation Solar Energy Center". LCG Consulting. October 28, 2009. Retrieved 2009-11-01. {{cite web}}: Check date values in: |date= (help)
  20. ^ "DeSoto Next Generation Solar Energy Center FAQs". FPL. Retrieved 2009-11-01. {{cite web}}: Cite has empty unknown parameter: |month= (help)
  21. ^ a b First Solar & NRG Open 21-MW Blythe Project Renewable Energy World, December 22, 2009.
  22. ^ Largest U.S. Solar Photovoltaic System Begins Construction at Nellis Air Force Base
  23. ^ "Solar power system at Nellis AFB goes live". KVBC. 2007-12-18. Retrieved 2007-12-19. {{cite news}}: Cite has empty unknown parameter: |coauthors= (help)
  24. ^ Air Force Switches on Largest Solar Power Plant
  25. ^ a b [1]
  26. ^ a b c CPUC: Status of RPS Projects
  27. ^ a b RESOLUTION E-4347 September 2, 2010
  28. ^ "AV Solar Ranch One". NextLight Renewable Power LLC. 2009. Retrieved 2009-06-06.
  29. ^ ENERGY DIVISION RESOLUTION E-4229
  30. ^ KCRD Solar Farm
  31. ^ "Californians plan solar mega-farm". Upstream Online. NHST Media Group. 2007-07-06. Retrieved 2007-07-10.
  32. ^ Cleantech America Plans 80 MW Solar PV Farm for California Renewable Energy Access, 10 July 2007.
  33. ^ Sempra Completes Initial Installation of Solar Panels at Copper Mountain Solar Plant
  34. ^ Cimarron Solar Project
  35. ^ Duke Energy Signs Up for Largest US Photovoltaic Project
  36. ^ Database of State Incentives for Renewables and Efficiency
  37. ^ Million Solar Roofs Initiative
  38. ^ Solar Investment Credit FINALLY Passed! retrieved 13 October 2008.
  39. ^ Federal Solar Tax Credits Retrieved 15 August 2008.
  40. ^ Residential Solar and Fuel Cell Tax Credit Retrieved 15 August 2008.
  41. ^ DOE to Invest $17.6 Million in Six Early-Stage Photovoltaic Projects
  42. ^ EERE: Solar Energy Technologies Program Home Page
  43. ^ DOE Announces Three Solar America Showcase Awards January 16, 2009 retrieved 28 March 2009
  44. ^ San Francisco Offers Solar Subsidies
  45. ^ Final changes and logistics of the SF Solar Incentive Program Explained
  46. ^ Berkeley FIRST retrieved 25 June 2009
  47. ^ Loan Programs retrieved 19 December 2009
  48. ^ Renewable Energy Generation Incentive Program
  49. ^ Are Feed-in Tariffs a Possibility in California?
  50. ^ California Approves Feed-In Tariffs, Rewards Energy Efficiency
  51. ^ Washington State Passes Progressive Renewable Energy Legislation
  52. ^ Report: States Falling Short on Interconnection and Net Metering
  53. ^ FERC Rules Against State Feed-In Tariffs
  54. ^ Existing SREC Markets retrieved 27 July 2010
  55. ^ Sherwood, Larry (July 2010). "U.S. Solar Market Trends 2009" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-28.
  56. ^ Sherwood, Larry (July 2009). "U.S. Solar Market Trends 2008" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-24.
  57. ^ Sherwood, Larry (August 2008). "U.S. Solar Market Trends 2007" (PDF). Interstate Renewable Energy Council (IREC). Retrieved 2010-07-24.
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