Global Solar Energy

Company

Global Solar Energy

Company type	Subsidiary
Industry	Solar energy
Founded	1996
Founder	Tucson Electric
Headquarters	Tucson, Arizona, United States
Products	CIGS solar cells, thin-film PV technology
Parent	Hanergy
Website	www.globalsolar.com^{[dead link]}

Global Solar Energy is a US-based manufacturer of CIGS solar cells, a thin-film based photovoltaic technology, with manufacturing operations in Tucson, Arizona, United States, and Berlin, Germany. In 2013, it was bought by Chinese renewable energy company Hanergy.^[1]

Technology

The company uses copper indium gallium diselenide to produce CIGS cells, which achieve up to 19.9% efficiency in laboratory samples,^[2] and production cells of about 10.5 to 11 percent average efficiency.^[3] This type of solar cell is ideal for portable power and is 1.5 to 2X greater in performance than comparable thin film flexible solar materials.^[4]

Mass production

Global Solar Energy opened in 1996, and in 2008 finished another phase of development as it expanded its CIGS production to a new 40 MW facility in Tucson, Arizona and a second 35 MW facility in Berlin, Germany.^[5]

The company expects to produce 20 megawatts of the films at the plant in 2008 before ramping up to 40 megawatts of capacity in 2009 and 140 megawatts by 2010.^[6] This makes Global Solar the largest full-scale manufacturer of CIGS thin-film photovoltaics.

Installations

Global Solar Energy operates the largest CIGS solar electric array in the world, a 750 kW system located at the company's manufacturing facility in Tucson.^[7] Part of the energy harnessed by this array is being purchased by the factory itself.^[8]

Competitors

With the advances in conventional crystalline silicon (c-Si) technology in recent years, and the falling cost of the polysilicon feedstock, that followed after a period of severe global shortage, pressure increased on manufacturers of commercial thin-film technologies, including amorphous thin-film silicon (a-Si), cadmium telluride (CdTe), and copper indium gallium diselenide (CIGS), leading to the bankruptcy of several companies.^[9] Some current competitors are:

Siva Power, a US Department of Energy awarded company that is operating in San Jose, CA.
GSHK Solar has noted that it can produce CIGS cells with a 12.5 percent and an average efficiency of 10 percent in full production efficiency.^[10]
IBM has reported 12% efficiency for its CIS solar cells.^[11]

References

^ "Hanergy Acquires Global Solar Energy". Global Solar. 25 July 2013. Archived from the original on 2 January 2015. Retrieved 2 January 2015.
^ I. Repins, M. A. Contreras, B. Egaas, C. DeHart, J. Scharf, C. L. Perkins, B. To, and R. Noufi., 19.9%-efficient ZnO/CdS/CuInGaSe$_2$ solar cell with 81.2% fill factor.
^ "HelioVolt Hits 12.2% Efficiency : Greentech Media". Greentechmedia.com. Archived from the original on 2009-05-03. Retrieved 2010-04-02.
^ "SCOTTEVEST/SeV - Gear Management Clothing - Solar Panels". Scottevest.com. Archived from the original on 2009-06-09. Retrieved 2010-04-02.
^ "Documents". Compound Semiconductors Online. 2008-03-09. Archived from the original on 2011-07-20. Retrieved 2010-04-02.
^ "Q&A: Global Solar VPs Dish Thin-Film Details : Greentech Media". Greentechmedia.com. 2008-03-21. Archived from the original on 2008-12-25. Retrieved 2010-04-02.
^ "Solar Industry: Content / Projects & Contracts / World's Largest CIGS Solar Array Operational In Arizona". Solarindustrymag.com. 2008-12-03. Archived from the original on 2009-08-11. Retrieved 2010-04-02.
^ "MarketWatch.com". MarketWatch.com. Archived from the original on 2008-12-20. Retrieved 2010-04-02.
^ "How thin film solar fares vs crystalline silicon". RenewableEnergyWorld.com. 2011-01-03. Archived from the original on 2015-04-02. Retrieved 2015-07-29.
^ "Nanosolar Creates Largest Thin-Film Tool : Greentech Media". Greentechmedia.com. Archived from the original on 2009-04-28. Retrieved 2010-04-02.
^ Liu, Wei; Mitzi, David B.; Yuan, Min; Kellock, Andrew J.; Chey, S. Jay; Gunawan, Oki (2010). "12% Efficiency CuIn(Se,S)₂ Photovoltaic Device Prepared Using a Hydrazine Solution Process†". Chemistry of Materials. 22 (3): 1010. doi:10.1021/cm901950q.