Explore the largest solar farms expected to come online in ISO-NE and see all proposed solar projects on a map.
Last updated: October 2026
On this page, you can explore our database of planned solar farms in ISO-NE. Each month, we track projects in development and update our list of the largest solar farms expected to come online in ISO-NE.
As of October 2026, there are 25 solar farms in development in ISO-NE, according to Cleanview's project tracker. Their total planned capacity is 1,139 MW. See also: operating solar farms in ISO-NE→
Planned Projects
25
Planned Capacity
1,139 MW
Unique Developers
10
180 MW
Expected Online: December 2029
Location: York, Maine
Developer: DE Shaw Renewable Investments
150 MW
Expected Online: October 2028
Location: Hartford, Connecticut
Developer: DE Shaw Renewable Investments
140 MW
Expected Online: November 2029
Location: Somerset, Maine
101 MW
Expected Online: October 2027
Location: Hartford, Connecticut
Developer: DE Shaw Renewable Investments
100 MW
Expected Online: December 2026
Location: Hancock, Maine
Developer: Swift Current Energy
75 MW
Expected Online: March 2028
Location: Knox, Maine
Developer: Glenvale Solar
50 MW
Expected Online: May 2030
Location: Windham, Connecticut
Developer: Brookfield
50 MW
Expected Online: December 2029
Location: Addison, Vermont
Developer: Freepoint Commodities
34 MW
Expected Online: January 2028
Location: Knox, Maine
Developer: Glenvale Solar
100 MW
Expected Online: December 2026
Location: Hancock, Maine
Developer: Swift Current Energy
18 MW
Expected Online: June 2027
Location: Somerset, Maine
Developer: Central Maine Power
16 MW
Expected Online: September 2027
Location: York, Maine
Developer: Glenvale Solar
101 MW
Expected Online: October 2027
Location: Hartford, Connecticut
Developer: DE Shaw Renewable Investments
25 MW
Expected Online: November 2027
Location: Hartford, Connecticut
Developer: DE Shaw Renewable Investments
20 MW
Expected Online: November 2027
Location: York, Maine
Developer: Greenskies
20 MW
Expected Online: November 2027
Location: Androscoggin, Maine
Developer: Glenvale Solar
5 MW
Expected Online: November 2027
Location: Hartford, Connecticut
Developer: DE Shaw Renewable Investments
34 MW
Expected Online: January 2028
Location: Knox, Maine
Developer: Glenvale Solar
Cleanview