For Mainers, by Mainers.

Who We Are

Dirigo Solar was founded in 2015 and within six months was awarded the largest solar contract in the history of the Maine Public Utilities Commission.

The rapid growth of our venture required an expanded team with a  track record in large scale solar. In 2017, we selected BNRG Renewables based in Dublin, Ireland – a proven leader in utility scale solar both in the EU and the US. Together, Dirigo and BNRG formed a joint venture, BNRG Maine, LLC, which develops and finances the PUC portfolio as well as other projects in the development pipeline.

Bob Cleaves,

Co-Founder and Principal Investor

A fourth generation Mainer, Bob has achieved national recognition for his achievements in the renewable power and fuel sectors. A lawyer turned entrepreneur, Bob began his professional career at the U.S. Department of Justice, where he prosecuted white collar crime as part of DOJ’s Honor Program. Following a career in private practice, he joined Wheelabrator Technologies and was instrumental in helping to shape environmental attribute tracking systems in ISO-NE and PJM. He ran the Washington, D.C.-based Biomass Power Association from 2008 to 2019, and played a lead role in expanding Section 45 production tax credits, accessing alternative fuel programs (LCFS and RFS) for the biofuels industry, and engaging with EPA, states and NGO’s on carbon policies both in the US and abroad. He is passionate about deploying sustainable, cost-effective energy solutions to help grow Maine’s rural economy.

Nick Mazuroski


Nick is a founding member of Dirigo Solar and Director of BNRG Maine. With over a decade of experience in the renewable energy sector, his focus has been on business origination, development, operations, and fundraising. Prior to Dirigo Solar, Nick was VP of Operations for the Biomass Power Association, the nation’s leading trade organization for biomass power producers, representing more than 2,000 MW of installed capacity. Nick studied Politics, Philosophy, and Economics at Oxford University, and earned his BA in Political Science from Bates College.

Audrey Puleio

Project Manager

Audrey Puleio is lead Project Manager for Phase 2 of the Maine portfolio. Born and raised in Maine, she is excited to return to her home state to work with fellow Mainers to realize the potential of alternative energy and utilize the land in a renewable landscape. In the solar space, she actively collaborates across teams, working with local contractors for securing environmental permitting and grid feasibility, and helps build strong communities for a more sustainable state. Audrey’s exposure to Maine’s communities is diverse; she managed a lobster wharf in Harpswell, worked on aquatic organism passage and increasing wild Atlantic salmon habitat throughout the state with the U.S. Fish and Wildlife Service, and completed the Maine marathon three times. Audrey holds a dual degree in Environmental Studies and Religious Studies from Bates College and the Institute of Buddhist Dialectics program in Dharamshala, India through Emory University.

Zach Good

Construction Manager

A native of the Portland, Maine area, Zach has more than 7 years of experience in the solar industry, holding positions that range from performing residential installations to managing the development and successful deployment of over 12MW of distributed generation solar in Northern New England. Zach is a USA based BNRG Renewables employee who actively collaborates with Dirigo Solar. What Zach brings to the table is a solutions driven mentality, a positive team oriented attitude, and an authentic boots-on-the-ground perspective of the management and construction practices required to deliver top quality solar projects. While not in the office or on a construction site Zach enjoys skiing, trying to stay in shape on the soccer field, playing his acoustic guitar, and spending time with his wife, Lindsay, and their newborn, Breccan.

Lars Gundersen

Assistant Project Manager

Lars is excited to be an intern at BNRG Maine, LLC this summer. A member of the Bates College class of 2020, he majored in Environmental Science and Politics, was a student manager at the College writing center, and co-founded a club dedicated to culturally-oriented explorations in Maine. Though his local adventures on foot, on skis, and by paddle have brought him to every corner of his home state of Maine, he is no homebody; on a State Department-sponsored gap year program in Turkey, for example, he explored much of Turkey and learned fluent Turkish.

Tamsin Stringer


Tamsin is happy to be working with BNRG Maine, LLC as an intern this summer. She is a rising junior at Bates College in Maine, and is majoring in Economics and Environmental Studies. At Bates, she works on clean energy initiatives with her peers and has been a part of the conversations that helped Bates achieve carbon neutrality. She is excited to learn more about the solar landscape in Maine, and hopes to pursue renewables in the future. In her free time, she enjoys practicing with her ultimate frisbee team and exploring Maine’s beautiful coast and mountains.