Project Description

Three Corners Solar is a proposed project in Benton, Clinton, and Unity Township in Kennebec County, Maine. At 110MWac and located in the heart of Central Maine Power’s transmission system, the project will produce enough power for 30,000 Maine homes and will displace the dirtiest and most expensive generation. This $200 million investment offers economic, environmental, and community benefits, including millions of dollars in new property taxes. The project has partnered with Unity College to provide $100,000 for internships and research, and $25,000 to Sebasticook Regional Lant Trust to support their land conservation and stewardship projects.

The Longroad team has a proven track record of developing, financing, constructing, and operating wind and solar projects in Maine. To date the Longroad team has successfully developed 702 MW in Maine, more than any other developer in the State. In addition to Three Corners Solar, the Longroad Team has a portfolio of distributed generation solar projects under construction across Maine in Augusta, Baldwin, Monmouth, and Harmony totaling 26 MWdc and contracted with Bath Iron Works and Walmart.

Virtual Public Information Meeting, January 25, 6-8pm EST

Thank you to all who joined our virtual public informational meeting on Tuesday January 25, 2022. A recording of this meeting is available below for viewing. Should you have any questions for the Longroad team, please email us at

Project Information

Public Participation in the Licensing Process

MAINE WON’T WAIT: A Four-Year Plan for Climate Action

A Four-Year Plan for Climate Action

View Report

The strategies proposed by the Maine Climate Council in its plan include, "a transition over time to a largely electrified transportation and buildings sector, combined with a transition to a clean electricity sector, allowing for significant greenhouse emissions reductions."

STRENGTHENIG Maine’s Clean Energy Economy

Maine’s Clean Energy Economy

View Report

Job creation in the renewable energy and energy efficiency sectors could accelerate Maine’s economic recovery according to a report by the State of Maine.

Project Details

Developer Longroad Development Company, LLC
Location Unity Township, Clinton, and Benton in Kennebec County, Maine
Project Area Located on a 3,100 acre parcel that has been commercially harvested for timber over the past 50 years.
Project Size 150 MW dc, 110 MW ac
Project Investment ~$200 million
Community Benefits Millions in new property taxes, $100,000 to Unity College to fund internships and research; and $25,000 to Sebasticook Regional Land Trust to support funding of their land conservation and stewardship projects.
Environmental Benefits Power for ~30,000 Maine homes – will displace the dirtiest and most expensive generation*; ~128,533 metric tons CO2 Emissions avoidance/year – the equivalent of removing ~27,953 passenger vehicles annually**; creates new edge (forest/meadow) habitat; pollinator grass species will aid in expanding bee habitat.
Employees During Construction ~110-150
Expected Construction Start August 2022

Project Information Downloads