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reflect sunlight to the salt-in-tube external thermal receiver on top of the tower at the center. With many modules working together, the receivers heat the 285 °C cold salt input and return 565 °C hot salt to centrally located storage. The hot salt will then be used in the generator system to generate electricity. The new system incorporates the experience from the Sierra SunTower which uses a
Babcock & Wilcox's water-based receiver, and the finding from the
2334:
2346:
25:
74:
686:, a global power and industrial plant developer, partnered with eSolar to deploy turnkey solar power plants in countries including Spain, the United Arab Emirates, and South Africa. Under the partnership, eSolar will provide solar field and receiver technology, while Ferrostaal will supply the power block, act as general contractor, and manage financing activities.
654:
projects and a portfolio of PPAs to develop, build, own, and operate up to 11 eSolar modular solar generating units at these sites. The development assets will use eSolar's concentrating solar power (CSP) technology to sell renewable electricity under contracted PPAs with local utilities seeking competitively priced, zero-carbon solar power.
194:
eSolar has designed heliostats that are smaller than the industry norm, allowing for pre-fabrication, mass-manufacturing, and easy installation, thereby reducing production and installation costs. eSolar announced a new heliostat design, referred to as SCS5, during the 2013 SolarPACES Conference in
324:
The eSolar Sierra SunTower generated 539 MWh (MegaWatt-hour) of electricity from August 1, 2010, to July 31, 2011. A total of 539 MWh of gross electrical energy has been generated at Sierra during the period Aug 1, 2010 and July 31, 2011. This is approximately 12.6% of the expected power generation
632:
concentrating solar power plant since 2010. With the support from the U. S. Department of Energy, the companies try to come up with a design for plants with flexibility of the sizes from 50 to 200 MW by replicating the basic module without a redesign. Each module uses hexagonal heliostat field to
653:
partnered with eSolar in
February 2009 to develop solar power plants with a total generation capacity of up to 500 MW at sites within California and across the Southwestern United States. Additionally, NRG invested approximately $ 10 million for equity and associated development rights for three
666:
The deal represents China's largest CSP project to date (Spring 2010) and has a total potential capital investment of more than $ 5 billion. Under the master licensing agreement, Penglai
Electric will use eSolar's solar thermal technology. The first plant of 92 MW will break ground in 2010. The
236:
modules. In the direct-steam configuration, each module comprises over 20,000 square meters of heliostats arranged in two subfields â north and south â which track the sun and concentrate solar energy to the tower mounted receiver. The field layout is a simple, regular design that eliminates
240:
A 46 MW eSolar power unit consists of sixteen heliostat fields and towers, a single steam turbine generator set, and a steam condenser, with a typical footprint of approximately 100 hectares (250 acres). These basic 46 MW units are designed to be scaled up to fit specific power
747:
In
February 2010, Sierra SunTower won Renewable Energy World's "Renewable Project of the Year" award. The award recognized eSolar's achievements in the clean energy industry by naming Sierra SunTower an exceptional breakthrough in the commercialization of solar thermal technology.
241:
requirements. In the molten salt configuration, 10 modules may be aggregated to build a 100MW, 50% capacity factor solar power plant. Plants of various electric output and capacity factor may be assembled through use or varying numbers of molten salt modules.
315:
However, in 2015, the Sierra SunTower was shut down for commercial operation, as it was deemed to be too costly to operate except on the sunniest of days. Thus, it served to show the real-world problems, and unpredictable nature, of concentrated solar power.
203:
eSolar has developed a sun-tracking control system that is able to calibrate heliostats and monitor the performance of each heliostat within the field. Tests have shown an unprecedented pointing accuracy and high thermal concentration ratios.
274:
Sierra SunTower included two eSolar modules. 24,000 heliostats, divided between four sub-fields, tracked the sun and focussed its energy onto two tower-mounted receivers. The focused heat converted feedwater piped to the receivers into
271:(SCE) grid and, in spring 2010, it was the only commercial CSP tower facility in North America. As of mid-August, 2018, the two towers that were the center of the facility are no longer standing. The plant, however, is still present.
662:
In
January 2010, eSolar announced a partnership with Penglai Electric, a privately owned Chinese electrical power equipment manufacturer, to build 2,000 MW of solar thermal power plants in China by 2021.
733:
as a 2010 Technology
Pioneer. The award recognizes eSolar's technological innovation and global commitment to delivering a clean, low-cost energy alternative to fossil fuels. An interview with
1281:
744:
magazine selected Sierra SunTower as the winner of the "Best
Renewable Project", recognizing the facility as an exceptional power generation project toward meeting growing global demand.
312:
emissions by 7,000 tons per year, an amount equivalent to planting 5,265 acres (21.31 km) of trees, removing 1,368 automobiles from the road, or saving 650,000 gallons of gasoline.
759:
s 2010 TR50. The TR50 is a list of the 50 most innovative companies in the world, those that have demonstrated superiority at creating technology that transforms how we live. The
726:
praised the company for, "...proving that
California's energy and environmental leadership are advancing carbon-free, cost-effective energy that can be used around the world."
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216:
to a tower-mounted thermal receiver. In the direct-steam configuration, the concentrated solar energy boils water in the receiver to produce steam. The steam is piped to a
1171:
2387:
1412:
2402:
181:, modular architecture, and a high-precision sun-tracking system. In October 2017, an article in GreenTech Media suggested that eSolar ceased business in late 2016.
800:
companies featured eSolar as a Top 10 Cleantech
Company with the capital, executive experience, and investor know-how to succeed in an increasingly crowded field.
237:
precision surveying and ground penetration. In the molten salt configuration a hexagonal solar field consists of over 100,000 square meters of reflector area.
195:
Las Vegas, Nevada. SCS5 offers a more simplified design and enhanced reliability to reduce total installed solar collector system cost by more than a third.
46:
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celebrates the development of emerging technologies and the progress made in those already established. eSolar is honored alongside such companies as
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turbine generator to produce electricity. The steam passed through a steam condenser, reverted to water through cooling, and the process repeated.
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2004:
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Port
Augusta expansion project. This expansion will increase the greenhouses by 20 hectares in support of a 10-year tomato supply contract with
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generator, which converts the energy to electricity. The steam out of the turbine is condensed and pressurized back into the receiver. In the
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is featured on YouTube where he responds to four questions posed to each of the World Economic Forum's Technology Pioneer 2010 winners.
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plants will be co-located with biomass electricity generation facilities, together eliminating 15 million tons of
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configuration, the concentrated solar energy heats molten salt to store thermal energy for future use.
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in 2007 as a developer of CSP plant technology. The company aims to develop a low cost alternative to
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1989:
1944:
1864:
1789:
1603:
1598:
1473:
992:"eSolar Sierra SunTower: a History of Concentrating Solar Power Underperformance â GUNTHER Portfolio"
974:"eSolar Sierra SunTower: a History of Concentrating Solar Power Underperformance â GUNTHER Portfolio"
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In August 2011 General Electric (GE) made a strategic investment of up to $ 40 million in eSolar.
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In the summer of 2009, eSolar unveiled the 5 MW Sierra SunTower plant, a commercial facility in
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2009:
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8:
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1523:
1318:"MIT's Technology Review Unveils 2010 TR50 List of the World's Most Innovative Companies"
1039:"eSolar's Modular and Scalable Baseload Molten Salt Plant Design and Feasibility Project"
625:
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created over 300 temporary jobs. In operation, the site employed 21 permanent employees.
111:
901:"SolarPACES 2013: eSolar debuts heliostat, molten salt plant design â Solar Novus Today"
1954:
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that demonstrated the company's technology. Sierra SunTower is interconnected to the
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Performance Data from US Treasury Dept.- Performance Report and Certification Form
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When eSolar's Sierra SunTower was unveiled in August 2009, California governor
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eSolar has secured over $ 182 million in investment funds. Investors include
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1082:"ESolar hits it big, becomes first solar thermal player to land China deal"
942:"eSolar's Modular, Scalable Molten Salt Power Tower Reference Plant Design"
1158:"eSolar Announces Commercial Contract for Product Deployment in Australia"
1144:"GE Invests Up to $ 40 Million in eSolar, Takes Partnership to Next Level"
2262:
2212:
2172:
2147:
2125:
2110:
1432:
703:
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1130:"California Solar Startup and German Industrial Giant Forge Partnership"
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as a renewable energy facility. Power from the facility is sold under a
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683:
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1111:"eSolar Concentrating Solar Power Partner Update â GUNTHER Portfolio"
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301:(PPA) with SCE, providing renewable energy for up to 4,000 homes.
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In December 2014, eSolar was awarded a commercial contract by
232:
eSolar's field layout design is built around the concept of
1365:"Google-Backed Solar Startup Picks Up Steam, $ 130 Million"
706:
to provide a solar collector system (SCS) solution for the
674:
It appears that this partnership is no longer progressing.
1385:
1350:"Google.org announces progress, confirms $ 10M in eSolar"
783:
253:
The Sierra SunTower power plant in Lancaster, California.
207:
150:
1300:"Excellence in Renewable Energy Award Winners Announced"
280:
165:(CSP) plant technology. The company was founded by the
1097:"Pasadena's ESolar lands 2,000-megawatt deal in China"
325:
of the initial estimate of 4270 MWh, a dismal result.
1217:"ESolar unveils 5 MW solar tower plant in California"
1046:
SunShot Concentrating Solar Power Program Review 2013
876:"Concentrated Solar Power Contender ESolar Goes AWOL"
1420:
1265:
95:
Concentrating Solar Power Technology and Engineering
850:
List of concentrating solar thermal power companies
2388:Technology companies based in Greater Los Angeles
2403:Renewable resource companies established in 2007
2364:
1068:"eSolar, NRG Energy to build solar power plants"
619:
1268:"Technology Pioneer 2010 â Bill Gross (eSolar)"
1048:. SunShot Initiative, U.S. Department of Energy
751:In February 2010, eSolar was named one of The
628:, has been working on the design of a modular
1406:
1010:"Sierra SunTower Solar Gen Station, Monthly"
939:
729:In December 2009, eSolar was honored by the
2373:Solar energy companies of the United States
626:Babcock & Wilcox Power Generation Group
1413:
1399:
161:is a privately held company that develops
1333:"And the Top Clean-Tech Companies Are..."
957:
717:
1266:World Economic Forum (1 December 2009).
338:) of Sierra SunTower Solar Gen Station
248:
198:
49:of all important aspects of the article.
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2413:American companies established in 2007
2393:Companies based in Burbank, California
2365:
1201:: CS1 maint: archived copy as title (
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286:During the 12 months of construction,
208:Power tower and electricity generation
45:Please consider expanding the lead to
1394:
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1094:
873:
833:President & CEO â John Van Scoter
753:Massachusetts Institute of Technology
293:Sierra Suntower was certified by the
2398:Energy companies established in 2007
2345:
2289:American Council on Renewable Energy
1362:
855:List of solar thermal power stations
18:
2299:Solar Energy Industries Association
2294:Interstate Renewable Energy Council
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189:
13:
1244:. Businessweek.com. Archived from
697:
244:
14:
2424:
2408:2007 establishments in California
1379:
1331:DeBaise, Colleen (8 March 2010).
1018:Energy Information Administration
796:s first survey of venture-backed
2383:Solar power in the Mojave Desert
2344:
2333:
2332:
1422:Solar power in the United States
1128:Woody, Todd (19 February 2010).
874:Deign, Jason (12 October 2017).
279:that drove a reconditioned 1947
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940:Tyner, C.; Wasyluk, D. (2014).
640:
212:An array of heliostats reflect
177:through a combination of small
37:may be too short to adequately
1099:– via Los Angeles Times.
1095:Woody, Todd (9 January 2010).
1060:
1031:
1002:
984:
966:
911:
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47:provide an accessible overview
1:
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827:
740:In December 2009, editors of
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620:Molten salt-based solar plant
328:
184:
1304:www.renewableenergyworld.com
1242:"Terms of Service Violation"
959:10.1016/j.egypro.2014.03.165
803:
295:California Energy Commission
7:
1438:Energy in the United States
1282:"2009 Projects of the Year"
843:
10:
2429:
624:eSolar, with its partner,
606:
269:Southern California Edison
256:
169:-based business incubator
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1286:www.powergenworldwide.com
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163:concentrating solar power
146:
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107:
99:
91:
80:
71:
16:Concentrating solar power
1338:– via www.wsj.com.
1014:Electricity Data Browser
299:Power Purchase Agreement
2273:8minutenergy Renewables
2218:Stirling Energy Systems
814:Oak Investment Partners
792:The Wall Street Journal
718:Recognition and awards
645:
254:
824:, and Quercus Trust.
724:Arnold Schwarzenegger
304:The 5 MW output from
265:Lancaster, California
252:
199:Sun-tracking software
2378:Solar thermal energy
2315:Community solar farm
1270:– via YouTube.
1115:guntherportfolio.com
996:guntherportfolio.com
978:Guntherportfolio.com
731:World Economic Forum
671:emissions annually.
1336:Wall Street Journal
1248:on December 7, 2009
1070:. 23 February 2009.
339:
68:
1985:Silver State South
1980:Silver State North
1880:Imperial SEC South
1820:Crescent Dunes CSP
1363:Madrigal, Alexis.
1352:. 17 January 2008.
1084:. 11 January 2010.
905:www.solarnovus.com
766:2010-05-28 at the
757:Technology Review'
682:In February 2010,
333:
255:
66:
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1875:Imperial SEC West
1785:California Valley
742:Power Engineering
630:molten salt-based
614:
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277:superheated steam
156:
155:
142:
135:
130:(President &
64:
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1940:Nevada Solar One
1830:Desert Stateline
1780:California Flats
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1386:Official website
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1219:. Archived from
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1177:. Archived from
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798:clean technology
690:General Electric
658:Penglai Electric
651:NRG Energy, Inc.
340:
332:
190:Heliostat design
140:
129:
128:John Van Scoter
76:
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2168:Practical Solar
2054:
1975:Sierra SunTower
1965:San Luis Valley
1885:Imperial Valley
1835:Desert Sunlight
1825:Davidson County
1815:Copper Mountain
1730:Antelope Valley
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1172:"Archived copy"
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998:. 5 April 2013.
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980:. 5 April 2013.
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946:Energy Procedia
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880:GreenTech Media
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789:In March 2010,
768:Wayback Machine
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698:Aalborg CSP A/S
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331:
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118:, United States
84:Venture backed
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32:This article's
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2320:PACE financing
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2188:Solar Frontier
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2096:Enphase Energy
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2091:Canadian Solar
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1380:External links
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820:, ACME Group,
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669:carbon dioxide
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41:the key points
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2282:Organizations
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2101:EnviroMission
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1720:Agua Caliente
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1554:Massachusetts
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1223:on 2015-02-25
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1184:on 2015-02-24
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1117:. 7 May 2013.
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952:: 1563â1572.
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708:Sundrop Farms
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218:steam turbine
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58:
48:
42:
40:
35:
30:
26:
21:
20:
2349:
2337:
2258:Tesla Energy
2223:Sundog Solar
2198:SolarReserve
2116:Global Solar
2105:
2086:BrightSource
2025:Three Cedars
1930:Mount Signal
1713:Power plants
1654:South Dakota
1644:Rhode Island
1639:Pennsylvania
1619:North Dakota
1368:
1358:
1344:
1335:
1326:
1312:
1303:
1294:
1285:
1276:
1261:
1250:. Retrieved
1246:the original
1236:
1225:. Retrieved
1221:the original
1211:
1186:. Retrieved
1179:the original
1166:
1152:
1138:
1123:
1114:
1105:
1090:
1076:
1062:
1050:. Retrieved
1045:
1033:
1021:. Retrieved
1013:
1004:
995:
986:
977:
968:
949:
945:
913:
904:
895:
883:. Retrieved
879:
869:
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790:
788:
756:
750:
746:
741:
739:
728:
721:
701:
693:
681:
673:
665:
661:
649:
641:Partnerships
623:
615:
334:Generation (
323:
314:
303:
292:
285:
273:
262:
239:
231:
211:
202:
193:
175:fossil fuels
158:
157:
108:Headquarters
81:Company type
55:October 2021
52:
36:
34:lead section
2213:StratoSolar
2126:Grape Solar
2111:First Solar
2045:White House
2035:Webberville
2005:Space Coast
1900:Long Island
1890:Ivanpah CSP
1790:Campo Verde
1765:Blythe Mesa
1740:Avra Valley
1569:Mississippi
1484:Connecticut
1433:Solar power
704:Aalborg CSP
222:molten salt
2367:Categories
2143:HelioPower
2000:Solar Star
1990:Solana CSP
1970:San Isabel
1925:Mojave CSP
1905:Martin CSP
1895:Kimberlina
1850:Enterprise
1684:Washington
1604:New Mexico
1599:New Jersey
1474:California
1252:2018-07-19
1227:2015-02-24
1188:2015-02-24
861:References
838:Bill Gross
836:Founder â
828:Management
818:NRG Energy
810:Google.org
735:Bill Gross
684:Ferrostaal
678:Ferrostaal
329:Production
308:reduced CO
185:Technology
179:heliostats
138:Bill Gross
124:Key people
116:California
2238:Sungevity
2228:SunEdison
2203:SoloPower
2183:SolarEdge
2059:Companies
2040:Westlands
2010:Springbok
1950:Red Hills
1855:Escalante
1845:El Dorado
1800:Centinela
1755:Blue Wing
1699:Wisconsin
1659:Tennessee
1564:Minnesota
1539:Louisiana
1052:26 August
804:Investors
761:2010 TR50
637:project.
635:Solar Two
141:(Founder)
39:summarize
2339:Category
2243:SunPower
2233:Sunetric
2121:GoodLeap
2081:BP Solar
1960:Roserock
1915:Mesquite
1865:Holaniku
1810:Comanche
1805:Cimarron
1795:Catalina
1775:Brockton
1679:Virginia
1629:Oklahoma
1609:New York
1584:Nebraska
1574:Missouri
1559:Michigan
1549:Maryland
1534:Kentucky
1514:Illinois
1489:Delaware
1479:Colorado
1469:Arkansas
1447:By state
1197:cite web
1023:March 8,
844:See also
764:Archived
755:(MIT)'s
234:scalable
167:Pasadena
92:Industry
2351:Commons
2253:Suntech
2193:Solaren
2178:Skyline
2158:Miasole
2066:Abengoa
2050:Wyandot
2020:Techren
1955:Redwood
1860:Genesis
1770:Boulder
1725:Alamosa
1704:Wyoming
1674:Vermont
1579:Montana
1519:Indiana
1499:Georgia
1494:Florida
1464:Arizona
1454:Alabama
922:1025891
885:13 June
822:Idealab
780:Twitter
171:Idealab
147:Website
112:Burbank
100:Founded
86:private
2268:Yingli
2248:Sunrun
2208:Sopogy
2163:Mosaic
2153:Maxeon
2136:Qcells
2131:Hanwha
2106:eSolar
2071:Ascent
2015:Sunset
1935:Nellis
1870:Hooper
1840:DeSoto
1760:Blythe
1745:Beacon
1735:Avenal
1634:Oregon
1589:Nevada
1529:Kansas
1504:Hawaii
1459:Alaska
920:
782:, and
772:Google
610:1,620
382:Total
228:Module
159:eSolar
67:eSolar
2308:Other
2263:Trina
2173:Sharp
2148:Jinko
2076:Ausra
2030:Topaz
1920:Moapa
1910:McCoy
1750:Bison
1664:Texas
1544:Maine
1509:Idaho
1369:Wired
1182:(PDF)
1175:(PDF)
1042:(PDF)
776:Apple
712:Coles
607:Total
563:2014
519:2013
475:2012
431:2011
387:2010
1995:SEGS
1689:D.C.
1669:Utah
1624:Ohio
1524:Iowa
1203:link
1054:2013
1025:2017
918:OSTI
887:2019
514:780
470:270
426:476
343:Year
336:MW¡h
103:2007
954:doi
784:IBM
646:NRG
558:94
555:94
511:23
496:105
493:122
490:113
379:Dec
376:Nov
373:Oct
370:Sep
367:Aug
364:Jul
361:Jun
358:May
355:Apr
352:Mar
349:Feb
346:Jan
132:CEO
2369::
1367:.
1302:.
1284:.
1199:}}
1195:{{
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43:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
