Granholm advocated for a renewable portfolio standard (RPS) in Michigan, which is a policy that requires utilities "to derive a set percentage of their electricity from renewable sources."  She supports an RPS "that would require 10 percent of the state's energy to come from renewable sources, like wind, by 2015," saying it would "create thousands of new good-paying jobs for Michigan and its citizens." 
At the 2008 Democratic National Convention, Governor Granholm led a Town Hall Discussion of Renewable
and Alternative Energy Options.  The Town Hall is available as a You Tube Video.
DemConWatch - A very comprehensive list of superdelegates and known commitments. Please use this as a starting point and double check by doing a news search to make sure the data is accurate. If you have a tip, let them know.
WashingtonPost.com - Web site with full listing of superdelegates broken out by state and then type.