Trina Solar, Roth & Rau, Day4 Develop Energy-Efficient Panels
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Trina Solar Ltd. developed a solar unit with “record” output, and Roth & Rau AG and Day4 Energy Inc. created a module with increased power efficiency as cell makers compete to produce greater energy at lower cost.
The module made by Roth & Rau and Day4 has a 19.3 percent efficiency, a gauge of the amount of sunlight converted into power, Day4 said in a statement today. Changzhou, China-based Trina said its panel had peak output of 274 watts and set a “world record,” according to a statement on its website.