Arizona ranks 24th in the second annual U.S.
Clean Energy Leadership Index from the group Clean Edge, based on 70 indicators in technology, policy, and capital.
"Key market indicators tracked by Clean Edge include total electricity produced by clean-energy sources, hybrid and electric vehicles on the road, clean-energy venture and patent activity, and policy regulations and incentives."
The top 10 states in the ranking are California, Oregon,
Massachusetts, New York, Colorado, Washington, New Mexico, Minnesota, Connecticut, and Vermont