Massachusetts is known for being a leader in many areas including technology, academia, bio-pharma, financial industry, and of course pragmatic Yankee can-do attitude. Add something else to this list; residential solar power. Massachusetts is second only to California in solar jobs at just over 15,000 solar industry related jobs, and has 944 MW total installed solar capacity, according to the "Solar Jobs Census Compendium 2015" report. So what's wrong with this? State solar policy may have been so successful that the program is getting full.