Meet Our Leaders


Xavier Helgesen
CEO & Co-founder

A veteran entrepreneur, Xavier founded two million-dollar businesses in his 20’s, including Better World Books, a profitable social venture with $60M in revenue selling books online to fund literacy. In 2009, he was recognized as the Best Social Entrepreneur by Businessweek and given the Fast Company Social Capitalist award. Xavier holds an MBA from Oxford Saïd Business School, which he attended on a Skoll Scholarship, and a BA (honors) from the University of Notre Dame.

Joshua Pierce
CTO & Co-founder

Joshua has 15 years experience in the energy efficiency and renewable energy industries. In 2007, he founded Pierce Consulting before serving as Director of Technical Services at RHA Inc. where he managed energy projects for the US Department of Energy, the State of California, and large investor-owned utilities. He was a 2012 Rainer Arnhold Fellow. Joshua has a degree in Construction Management and Building Science from Cal State-Chico, post-graduate education at UCLA.

Bill Lenihan, President & CFO

Bill is an accomplished senior executive with a strong track record of improving companies and building enterprise value. He has a depth of experience across industries (technology, consumer, industrial, services) and functional areas. Prior to Off Grid Electric, Bill held roles at Switch Lighting, as well Calera Capital (formerly Fremont Partners), Goldman Sachs and Credit Suisse First Boston. Bill holds an MBA from the Wharton School at the University of Pennsylvania and a BA (honors) from UCLA.

Thor Muller, CIO 

Thor is a technologist and serial entrepreneur, having founded five start-ups, including Get Satisfaction, a pioneering social platform connecting customers to products and brands. Prior to Off Grid Electric, he served as Get Satisfaction’s original CEO and later as its CTO, growing the business to serve over 70,000 customer communities. In 2012, he published a New York Times bestselling book, "Get Lucky: How to Put Planned Serendipity to Work for You and Your Business.” Thor is an alumnus of the University of Iowa.


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