Solar interconnection queue in Maine

Before a new power plant or battery can connect to the US grid, it joins a queue for studies and an interconnection agreement. Most requests never get built. This shows every request: active, built and withdrawn.

Requests shown14852 MW

Active in queue852 MW14 requests

Agreement signed672 MW13 requests

Withdrawn883,764 MW never built

Find requests

Project, developer, substation or county State Grid region Technology Status Year joined Sort

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Source: Lawrence Berkeley National Laboratory, Queued Up interconnection queue data (data through end of 2025). Map points are county centres, not exact sites.

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In studyAgreement signedUnder constructionBuiltSuspendedWithdrawn

Requests

14 requests

Project	Capacity	Status	Location	Region	Queued	Online
Solar Solar	180 MW	In study	York, ME	ISO-NE	Jul 2023	target 2029
Green Apple Solar Solar	179 MW	Agreement signed	Androscoggin, ME	ISO-NE	Feb 2021	target 2027
Solar Solar	165 MW	Agreement signed	Somerset, ME	ISO-NE	Feb 2021	target 2029
Three Rivers Solar Solar	100 MW	Agreement signed	Hancock, ME	ISO-NE	Jan 2019	target 2026
Warren Meadow Solar Solar	74.5 MW	Agreement signed	Knox, ME	ISO-NE	Nov 2020	target 2026
Solar Knox Solar	33.5 MW	Agreement signed	Knox, ME	ISO-NE	Oct 2021	target 2027
BD Solar Church Hill Solar	20.0 MW	Agreement signed	Androscoggin, ME	ISO-NE	Feb 2020	target 2028
GDC Saco Solar Solar	20.0 MW	Agreement signed	York, ME	ISO-NE	Oct 2019	target 2027
Turner Meadow Solar Solar	19.8 MW	Agreement signed	Androscoggin, ME	ISO-NE	Jun 2021	target 2026
SolarFairfield Solar	18.1 MW	Agreement signed	Somerset, ME	ISO-NE	Dec 2020	target 2027
West Baldwin Solar Solar	17.1 MW	Agreement signed	Cumberland, ME	ISO-NE	Oct 2019	target 2029
Emery Meadow Solar Solar	16.4 MW	Agreement signed	York, ME	ISO-NE	Apr 2020	target 2027
Solar Solar	7.0 MW	Agreement signed	Kennebec, ME	ISO-NE	Aug 2019	target 2022
Roxbury Solar Solar	2.0 MW	Agreement signed	Oxford, ME	ISO-NE	Oct 2021	target 2026

Capacity in the queue by state

Click a state to drill down.

By grid region

ISO/RTO markets and the non-ISO West and Southeast.

ISO-NE (New England)14 · 852 MW

Requests by year joined

Capacity of requests in this view, by the year they entered the queue. Click a year.

20192023

Source: Rand, J. et al., Queued Up, Lawrence Berkeley National Laboratory, data through end of 2025. Compiled from the queues of the 7 ISO/RTOs and dozens of non-ISO utilities. A request is a proposal to connect, not a commitment to build: historically most are withdrawn. Capacity is the requested interconnection size; hybrids include the storage component. Transmission lines · Planned power plants (EIA)