A number of U.S. states require electricity providers to derive a minimum percentage of their power from renewable sources by a certain date. Such a requirement is often referred to a renewable portfolio standard, or RPS. Currently, 24 states, plus the District of Columbia have formalized RPSs in place, while five other states have legislated [...]

Early Friday evening, the House narrowly passed the American Clean Energy and Security Act (ACES), a monumental — and mammoth — piece of legislation (PDF) that, among other things, aims to mitigate greenhouse gas emissions. Reactions to the bill’s passage have been varied. Republicans, by and large, have been critical of the bill’s perceived cost [...]

In October 2008, President Bush signed into law the The Energy Improvement and Extension Act of 2008. The act extended, through 2016, the corporate and individual Investment Tax Credit (ITC). It also removed the cap that had previously prevented homeowners from taking more than a $2,000 credit when purchasing a solar PV system. Now, in [...]

A closer look at the details of funding for HR 7060, the solar tax credit bill currently stalled in the Senate.