Our Team


Curiosity, creativity, expertise and a shared commitment to renewable energy…our team brings these qualities day after day to our collaborative effort to change the energy landscape.


David Blittersdorf

President / CEO

To describe David as passionate about renewable energy is a huge understatement. Born and raised in Pittsford, Vermont, he graduated from the University of Vermont in 1981. A year later he founded NRG Systems, and grew it into a successful manufacturer of measurement instruments for the global wind energy industry. After twenty-two years, he stepped down as CEO of NRG to found AllEarth Renewables, a company offering solar, wind and transportation solutions to help prepare humanity for future energy constraints. Today, David is involved in all aspects of AllEarth Renewables’ day-to-day operations. He also serves on the boards of several energy-focused institutions at the national and state levels, including the Post Carbon Institute and Vermont Businesses for Social Responsibility. He holds a BS in mechanical engineering from the University of Vermont, and an honorary PhD from Wentworth Institute of Technology.

Portrait of Even Blittersdorf

Evan Blittersdorf

Business Development Analyst

Evan works with new and existing AllEarth customers to find solar solutions that meet their unique needs. Primarily, he helps assist PPA (Power Purchase Agreement) customers in entering and navigating their PPAs with AllEarth. His background is both local and international. Evan grew up in Vermont, immersed in the world of renewable energy, and spent time living and studying in South Korea. In his work as an analyst, he keeps an eye on both global and local trends, to assist AllEarth in its mission of creating a sustainable energy future for Vermont and beyond.

Portrait of Paul Gustafson

Paul Gustafson

Technical Support

Paul provides technical support for AllEarth Customers, supplying technical information before, during and after production installation. Paul’s previous experience includes providing technical support and training for energy-saving products such as tankless water heaters, heat pump water heaters, and geothermal systems. In addition, Paul has worked as a residential energy auditor, advising homeowners on energy-saving measures to minimize homeowners’ impacts on the environment and lower energy costs.

Portrait of Tim Post

Tim Post

Sales Manager

Tim guides people interested in renewable energy along their optimal path to a sustainable future. His own renewable energy path started almost 10 years ago during the resurgence of Solar PV in Massachusetts, and led him to Vermont a few years ago. Tim is a passionate climate justice crusader, who emphatically believes every solar panel, heat pump, and wind turbine installed is another step toward a more livable planet for our coming generations. Tim sits on the board and leadership committees of several environmental advocacy groups where he works to protect fragile regional resources, He counts himself beyond lucky to live in beautiful Vermont, where he is an avid outdoorsman who has imparted his love for the natural world and human powered recreation to his now grown sons.

Portrait of David Mullett

David Mullett

General Counsel

David advocates for AllEarth on state and federal legislative and regulatory matters, and offers internal support to AllEarth in his role as General Counsel. He is honored to apply his many years of experience in energy law to advance the mission of AllEarth, and in support of the steps that must be taken – now – to meaningfully address climate change.


We’re building relationships one installation at a time. See what folks have to say about AllEarth Solar.

Jay & Tammy DeBono, Grand Isle, VT
Jay & Tammy DeBono, Grand Isle, VT
Dog in front of a solar panel
Jerry Greenfield, Ice Cream Guy
Jerry Greenfield, Ice Cream Guy
Sarah P., Grand Isle, VT
Sarah P., Grand Isle, VT
Steve Page, Williston, VT
Steve Page, Williston, VT