How many solar farms are in ISO-NE?

There are 975 operating solar farms in ISO-NE.

What is the total solar capacity in ISO-NE?

The total operating solar capacity in ISO-NE is 3,630 MW.

What is the largest solar farm in ISO-NE?

The largest solar farm in ISO-NE is Gravel Pit Solar, LLC at 120 MW, located in Hartford, Connecticut.

How many solar farms were built in ISO-NE in 2025?

38 solar farms were built in ISO-NE in 2025.

How many developers have solar farms in ISO-NE?

There are 38 unique developers with operating solar farms in ISO-NE.

Solar Farms in ISO-NE

Explore the largest solar farms in ISO-NE and see all the utility-scale solar projects in ISO-NE on a map.

Last updated: June 2026

On this page, you can explore our real-time database of solar farms in ISO-NE. Each month, we track solar projects and update our list of the largest solar farms in ISO-NE.

As of June 2026, there are 975 utility-scale solar farms in ISO-NE, according to Cleanview's project tracker. Their total operating capacity is 3,630 MW. In 2025, there were 38 solar farms built in ISO-NE. See also: planned solar farms in ISO-NE→

Total Solar Farms

975

Total Capacity

3,630 MW

Built in 2025

ISO-NE Solar Map

Map of solar farms in ISO-NE. Marker size reflects capacity — only facilities with reported capacity data are shown.

Largest Solar Farms in ISO-NE

Gravel Pit Solar, LLC

120 MW

Year Operational: February 2025

Location: Hartford, Connecticut

Developer: DE Shaw Renewable Investments

Three Corners Solar

110 MW

Year Operational: July 2024

Location: Waldo, Maine

Developer: Longroad Energy

Farmington Solar

77 MW

Year Operational: October 2021

Location: Franklin, Maine

Sanford Solar

49 MW

Year Operational: November 2020

Location: York, Maine

Quinebaug Solar

49 MW

Year Operational: December 2021

Location: Windham, Connecticut

Robin Hollow Solar

41 MW

Year Operational: December 2023

Location: Kent, Rhode Island

Dry Bridge Solar (Brown University)

40 MW

Year Operational: November 2023

Location: Washington, Rhode Island

DWW Solar ll

37 MW

Year Operational: December 2019

Location: Hartford, Connecticut

University Solar, LLC

24 MW

Year Operational: December 2019

Location: Kent, Rhode Island

Recently Built Solar Farms in ISO-NE

Stafford Solar One

4 MW

Year Operational: April 2026

Location: Tolland, Connecticut

Developer: NJR Clean Energy Ventures

Rose Solar

4 MW

Year Operational: April 2026

Location: Hampshire, Massachusetts

Woodstock Solar One

3 MW

Year Operational: March 2026

Location: Windham, Connecticut

Developer: Verogy