Specifically, the proposed federal rules would require electric utilities to get at least 25% of their electricity from wind, solar, biomass and other clean energy sources by 2025.
According to the Energy Information Administration, in 2007, the most recent year in which complete data is available, only 8.4% of US electricity generation came from renewables.
The proposed federal minimum standard would also require retail energy suppliers to diversify their portfolios with the first requirement of 6% total renewable energy by 2012.
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