Sunrun - Engage

With a total score of 426 out of 600, the fifth place goes to Solar Power Rocks. Solar Power Rocks is on a mission to turn their customers’ solar power dreams into reality. They are committed to giving homeowners a clear picture of policies, incentives, and investment returns on residential solar panel installations. Their blogging section includes categories such as News, Energy Technology, Project Tips and Guides, and Local Updates, and is updated about two times a month.