4 MW Solar operating in Oxford, ME — ISO New England Inc.
4 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2022
Operating Since
Coordinates
44.5177, -70.5178
County
Oxford, ME
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wyman Hill Solar, LLC | — | — |
| Owner(s) | Wyman Hill Solar, LLC | — | — |
| Status | Operating | operating | — |
Mainely Solar, also known as Wyman Hill Solar LLC, is a 4 MW solar photovoltaic power plant located in Oxford County, Maine. The plant began operating in 2022 and has one generator. Wyman Hill Solar, LLC owns and operates the facility, which utilizes fixed-tilt solar tracking technology. It is interconnected to the ISO New England Inc. balancing authority, within the Northeast Power Coordinating Council (NPCC) NERC region.
In its most recent year of operation, Mainely Solar generated 4,763 MWh of electricity, achieving a capacity factor of 13.6%. The plant is ranked as the 97th largest in Maine out of 153 facilities, and nationally it is ranked 3,425 out of 7,108 power plants. The primary fuel source for the plant is solar energy (SUN).
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
12.47 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
196 MWh
Latest Month
4.8K MWh
Annual Generation
13.6%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Rumford Industrial Park Substation · 115 kV
Substation Distance
< 10 km
Operator
Central Maine Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.MAINE
Node Source
Shared substation inference
Substation identified. Node ID not yet resolved against ISO roster.
Winter Storm Warning: Northern Oxford; Northern Franklin; Southern Oxford; Southern Franklin; Northern Carroll; Southern C
Winter Storm Warning issued March 21 at 2:18PM EDT until March 23 at 2:00AM EDT by NWS Gray ME
Winter Storm Warning: Northern Oxford; Northern Franklin; Southern Oxford; Southern Franklin; Northern Carroll; Southern C
Winter Storm Warning issued March 21 at 2:18PM EDT until March 23 at 2:00AM EDT by NWS Gray ME
Winter Storm Warning: Northern Oxford; Northern Franklin; Southern Oxford; Southern Franklin; Northern Carroll; Southern C
Winter Storm Warning issued March 21 at 2:18PM EDT until March 23 at 2:00AM EDT by NWS Gray ME
Last updated 2026-03-21
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