Explore the largest solar farms in Maine and see all the utility-scale solar projects in Maine on a map.
Last updated: May 2026
On this page, you can explore our real-time database of solar farms in Maine. Each month, we track solar projects and update our list of the largest solar farms in Maine.
As of May 2026, there are 153 utility-scale solar farms in Maine, according to Cleanview's project tracker. Their total operating capacity is 885 MW. In 2025, there were 8 solar farms built in Maine. See also: planned solar farms in Maine→
Total Solar Farms
153
Total Capacity
885 MW
Built in 2025
8
Map of solar farms in Maine. Marker size reflects capacity — only facilities with reported capacity data are shown.
110 MW
Year Operational: July 2024
Location: Waldo, Maine
Developer: Longroad Energy
77 MW
Year Operational: October 2021
Location: Franklin, Maine
49 MW
Year Operational: November 2020
Location: York, Maine
20 MW
Year Operational: June 2021
Location: Piscataquis, Maine
20 MW
Year Operational: December 2024
Location: Androscoggin, Maine
Developer: Kearsarge Energy
20 MW
Year Operational: November 2025
Location: York, Maine
Developer: Walden Renewable
10 MW
Year Operational: December 2017
Location: Somerset, Maine
9 MW
Year Operational: June 2021
Location: Oxford, Maine
7 MW
Year Operational: June 2021
Location: Kennebec, Maine
1 MW
Year Operational: December 2025
Location: Franklin, Maine
20 MW
Year Operational: November 2025
Location: York, Maine
Developer: Walden Renewable
5 MW
Year Operational: November 2025
Location: Hancock, Maine
Developer: Standard Solar
1 MW
Year Operational: October 2025
Location: Androscoggin, Maine
1 MW
Year Operational: October 2025
Location: Cumberland, Maine
1 MW
Year Operational: August 2025
Location: Androscoggin, Maine
1 MW
Year Operational: June 2025
Location: Cumberland, Maine
5 MW
Year Operational: January 2025
Location: Penobscot, Maine
Developer: Navisun
20 MW
Year Operational: December 2024
Location: Androscoggin, Maine
Developer: Kearsarge Energy
Cleanview