Willowbrook Solar I, LLC — Plant Summary
- EIA Plant ID
- 63877
- Capacity
- 150 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Highland, OH
- Operating Since
- 2024
- Generators
- 1
- Operator
- Big Sky Wind, LLC
- Parent Company
- —
- Annual Generation
- 278,888 MWh
- Capacity Factor
- 21.2%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
Willowbrook Solar I, LLC
OperatingSolar
Ranked #18 of 86 Solar plants in OH#511 of 7447 nationally
150 MW Solar operating in Highland, OH — PJM Interconnection, LLC
EIAGEM
150 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2024
Operating Since
Location
Coordinates
39.0218, -83.7050
County
Highland, OH
Nearby Plants
- New Market SolarSolar100 MW · 9.6 km
- Hecate Energy Highland LLCSolar300 MW · 11.4 km
- Hillcrest SolarSolar200 MW · 18.1 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Big Sky Wind, LLC | RWE Renewables Americas | — |
| Owner(s) | Big Sky Wind, LLC | RWE Renewables Americas LLC | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as RWE Renewables Americas LLC
This entity is not yet in the GEM ownership database — chain unavailable.
About
Willowbrook Solar I, LLC is a 150 MW solar photovoltaic power plant located in Highland County, Ohio. The plant, which began operating in 2024, utilizes single-axis tracking technology. It is owned and operated by Big Sky Wind, LLC. The plant connects to the grid within the PJM Interconnection, LLC balancing authority, which is part of the RFC NERC region.
In its latest year of operation, Willowbrook Solar I generated 278,888 MWh of electricity, achieving a capacity factor of 21.2%. The plant has a power purchase agreement (PPA) price of $65.2 per MWh. Willowbrook Solar I is ranked as the 15th largest solar plant in Ohio out of 31, and ranks 361st nationally out of 639 solar plants. Financial data for the plant is sourced from FERC EQRs and LBNL Solar.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
138 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Interconnection Queue1 projectBeta
Willowbrook Solar
OperationalSolar150 MWPJM
Generation
8.4K MWh
Latest Month
278.9K MWh
Annual Generation
21.2%
Capacity Factor
Financial DataBeta
Source: FERC Electric Quarterly Reports, LBNL Utility-Scale SolarHIGH
$65.2/MWh
PPA Price
Big Sky Wind, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
WILDCAT 138 KV LOAD
Pricing Hub
AEP-DAYTON HUB
Location Type
Load Node
Node Source
Curated node match
News & Articles (10)Beta
Industry·corporate
Solar, battery project files application
The developer of Hillclimber Solar and Storage features this image atop the landing page of the proposed project on RWE's website.
RWE (developer)
Urbana Daily Citizen·4 weeks ago
Industry·corporate
Ohioans have paid $62M on electric bills to subsidize solar farms. Most of the money is unspent
COLUMBUS, Ohio – Nearly $54 million collected from Ohioans since 2021 as add-on fees atop their electric bills is sitting idle in a state...
Ohio (other)
Cleveland.com·1 years ago
Industry·corporate
'It reminds me of The Hunger Games': Rural residents complain about solar farm where Cincinnati buys power
The City of Cincinnati is now receiving enough solar energy to power more than 400 municipal buildings, including City Hall, police stations...
City of Cincinnati (buyer)
WCPO 9 Cincinnati·2 years ago
General
Ohio Approves Two New Solar Energy Locations and a Natural Gas Line
OHIO – The Ohio Power Siting Board (OPSB) today approved applications filed by Fox Squirrel Solar, LLC and Powell Creek Solar, LLC to...
Scioto Post·4 years ago
Last updated 2026-03-26
View all 10 articles