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Can you guess which company's solar modules were determined to be the best-performing solar modules of 2011? [...]

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Best-Performing Solar Modules in 2011 Announced

Can you guess which company’s solar modules were determined to be the best-performing solar modules of 2011? […]

REC solar modules -- exclusive usage rights for picture are held by the Photon Holding GmbH (Photo: Guido Schiefer /

Can you guess which company’s solar modules were determined to be the best-performing solar modules of 2011?

Well, if you haven’t heard already, Photon Laboratory has announced that REC’s solar modules were ranked first in the 2011 module field performance test. They produced “6 percent more energy than competing modules,” on average, a news release by REC noted.

The Photon Laboratory evaluation is a year-long comparative study of energy yield in the field. The evaluation looks at modules of different types, including thin film and monocrystaline.

solar module performance test site

Photon solar module performance test site in Aachen, Germany.

“Since 2005, a total of over 130 different module types has been installed on a piece of property – free of shadowing – were monitored constantly using an elaborate measurement system,” Photon notes. “Two to three units of each module type are represented in the test to prevent potential faulty products or modules with below average results from distorting the results for the entire series. The modules are installed in Germany, facing south at a 28° angle and are mounted about 2.5 m above the ground, which means they have complete rear ventilation.”

More details on the testing procedures are available on the Photon page linked above.

REC topped 45 other companies to take first place in this evaluation in 2011. In 2010, it came in 2nd place, behind Siliken. SolarWorld came in first in 2008 and 2009.

“The results published in the industry magazine Photon Profi state that the highest performance ratio of 90.8 percent and also the highest yield of 1150.4 kWh/kW were measured for the REC module,” REC is happy to point out.

“As the world’s most integrated solar company, REC delivers high performing products by controlling the complete solar value chain with production from silicon to cells, wafers and modules to systems development,” the company adds.

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Written By

Zach is tryin' to help society help itself one word at a time. He spends most of his time here on CleanTechnica as its director, chief editor, and CEO. Zach is recognized globally as an electric vehicle, solar energy, and energy storage expert. He has presented about cleantech at conferences in India, the UAE, Ukraine, Poland, Germany, the Netherlands, the USA, Canada, and Curaçao. Zach has long-term investments in Tesla [TSLA], NIO [NIO], Xpeng [XPEV], Ford [F], ChargePoint [CHPT], Amazon [AMZN], Piedmont Lithium [PLL], Lithium Americas [LAC], Albemarle Corporation [ALB], Nouveau Monde Graphite [NMGRF], Talon Metals [TLOFF], Arclight Clean Transition Corp [ACTC], and Starbucks [SBUX]. But he does not offer (explicitly or implicitly) investment advice of any sort.


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