How many solar farms are planned in ISO-NE?

Developers have proposed 23 solar farms in ISO-NE with 1.0 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned solar farm in ISO-NE?

Solar in Hartford County, Connecticut is the largest planned, at 150 MW. It is expected to come online in 2028.

Who is developing solar farms in ISO-NE?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Planned solar farms in ISO-NE

Developers have proposed 23 solar farms in ISO-NE with 1.0 GW of capacity, in the grid operators' interconnection queues.

Planned23

See operating solar farms in ISO-NE

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned solar farms in ISO-NE are expected online in 2027 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned solar farms by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned solar farms in ISO-NE

Planned, by capacity

#	Solar farm	Location	Expected online	Capacity
1	Solar	Hartford County, Connecticut	2028	150 MW
2	Solar	Somerset County, Maine	2029	140 MW
3	Broadleaf Solar	Hartford County, Connecticut	2027	101 MW
4	Three Rivers Solar	Hancock County, Maine	2026	100 MW
5	Warren Meadow Solar	Knox County, Maine	2028	75 MW
6	Husky Solar	Windham County, Connecticut	2030	50 MW
7	FPS Panton Solar	Addison County, Vermont	2029	50 MW
8	Solar Knox	Knox County, Maine	2028	34 MW
9	Solar	Hartford County, Connecticut	2027	25 MW
10	Nutes Solar	Strafford County, New Hampshire	2026	20 MW

Planned solar farms expected online soonest in ISO-NE

In the next 18 months, soonest first

#	Solar farm	Location	Expected online	Capacity
1	Three Rivers Solar	Hancock County, Maine	2026	100 MW
2	Nutes Solar	Strafford County, New Hampshire	2026	20 MW
3	SolarFairfield	Somerset County, Maine	2027	18 MW
4	Emery Meadow Solar	York County, Maine	2027	16 MW
5	Broadleaf Solar	Hartford County, Connecticut	2027	101 MW
6	Solar	Hartford County, Connecticut	2027	25 MW
7	GDC Saco Solar	York County, Maine	2027	20 MW
8	Turner Meadow Solar	Androscoggin County, Maine	2027	20 MW
9	Solar Increase	Hartford County, Connecticut	2027	5 MW
10	Solar Knox	Knox County, Maine	2028	34 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks solar farms

Operating solar farms come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about solar farms in ISO-NE

How many solar farms are planned in ISO-NE?: Developers have proposed 23 solar farms in ISO-NE with 1.0 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned solar farm in ISO-NE?: Solar in Hartford County, Connecticut is the largest planned, at 150 MW. It is expected to come online in 2028.
Who is developing solar farms in ISO-NE?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.