In Earthworms' experience, when people want to do something Green they think recycling - or solar panels! But what makes solar tick? What are your options? How is solar evolving, in efficiency, affordability, and influence in the "energy space?"

Paul McKnight, owner of St. Louis-based EFS Energy, has made solar his business since 2011. He's weathered solar's ups/downs - and continues to be excited by innovations in power storage, renewable energy financing - and more.

Music: Giant Steps, Dave Stone

THANKS to Andy Heaslet, intrepid engineer

Related Earthworms' Conversations: PACE Financing (January 2017)

Energy: Efficiency, Policy, Financing (September 2016)

All-Electric America> (August 2016)