%0 Report %K Renewable energy %K Renewable energy policies %K Wind power %A Ryan H Wiser %A Christopher Namovicz %A Mark Gielecki %A Robert Smith %C Berkeley %D 2007 %I LBNL %P 19 %T Renewables Portfolio Standards: A Factual Introduction to Experience from the United States %2 LBNL-62569 %8 04/2009