For example, a 2009 analysis by the Electric Power research Institute (EPRI), the industry's research arm, looked at how much various approaches would contribute to carbon reduction by the year 2030.

比如，电能工业智库“电力研究中心”(EPRI)在2009年针对各类途径对2030年前碳减目标排贡献率做了一个分析。

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The benchmark study, by the Natural Resources Defense Council and the Electric Power Research Institute (EPRI), found that plug-in hybrids are cleaner than regular cars in each of nine scenarios.

FORBES: Electric Cars Aren't Green, Says Ph.D.