Maine · 2 industries

Solar and battery storage projects in Maine

13 utility solar and 1 battery storage projects are in development in Maine, 1 of them under construction, with 183 already operating. Who is building each one, and who to call, is in the app.

Request access By county

14in development

0of them pre-construction

1of them under construction

183operating

3 queued1 permitted9 financed1 under construction

By industry

Maine, industry by industry.

Utility solar in Maine13 in development1 under construction175 operating

Battery storage in Maine1 in development0 under construction8 operating

Breaking ground next

Next to start work in Maine.

Up to three projects per industry in Maine, closest to breaking ground first.

Utility solar

Warren Meadow SolarKnox County
Financed · 74 MW · start est. 2026 Q4
Builder: not yet named
West Baldwin SolarCumberland County
Financed · 17 MW · start est. 2027 Q3
Builder: not yet named
Emery Meadow SolarYork County
Financed · 16 MW · start est. 2026 Q3
Builder: not yet named

Battery storage

South Portland ESSCumberland County
Permitted · 10 MW · start est. 2027 Q1
Builder: not yet named

By county

Maine, county by county.

Counties with 5 or more projects in development, most first. Each has a page with every project in development there.

No county in Maine has 5 projects in development yet.

Fewer than 5 in development: York County (3), Androscoggin County (2), Cumberland County (2), Knox County (2), Somerset County (2), Hancock County (1), Penobscot County (1), Sagadahoc County (1).

Questions

Maine, in short.

How many construction projects are in development in Maine?

14 solar and battery storage projects are in development in Maine: 13 utility solar and 1 battery storage projects. 1 of them are under construction, and 183 more are already operating.

Which counties in Maine have the most projects in development?

York County (3), Androscoggin County (2), Cumberland County (2), Knox County (2) and Somerset County (2).

Where does the Maine data come from?

From public records read daily for each industry (11 sources for utility solar and 8 sources for battery storage): grid interconnection queues, construction permits, county records, state siting and procurement filings, and satellite imagery. Each value links to its record.