Montague Solar — Plant Summary
- EIA Plant ID
- 63441
- Capacity
- 162 MW
- Primary Fuel
- Solar
- Technology
- Solar Photovoltaic
- Status
- Operating
- Location
- Gilliam, OR
- Operating Since
- 2023
- Generators
- 1
- Operator
- Avangrid Power LLC
- Parent Company
- Avangrid
- Annual Generation
- 379,178 MWh
- Capacity Factor
- 26.7%
- Balancing Authority
- Avangrid Renewables LLC
- ISO/RTO
- —
- NERC Region
- WECC
Montague Solar
OperatingSolar
Ranked #5 of 149 Solar plants in OR#453 of 7447 nationally
162 MW Solar operating in Gilliam, OR — Avangrid Renewables LLC
EIAGEM
162 MW
Nameplate Capacity
1
Generators
unit
Solar Photovoltaic
Technology
2023
Operating Since
Location
Coordinates
45.5363, -120.1754
County
Gilliam, OR
Nearby Plants
- Montague Wind Power Facility LLCWind200 MW · 4.9 km
- Waste Management Columbia Ridge LFGTELandfill Gas12.8 MW · 10.3 km
- Leaning Juniper Wind Power IIWind199.2 MW · 10.8 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Avangrid Power LLC | Avangrid Renewables | — |
| Owner(s) | Avangrid Power LLC | Avangrid | — |
| Status | Operating | operating | — |
Ownership Chain
About
Montague Solar is a 162 MW solar photovoltaic power plant located in Gilliam County, Oregon. The plant, which began operating in 2023, utilizes fixed-tilt solar tracking technology. It is owned and operated by Avangrid Power LLC, a subsidiary of Avangrid. The plant's balancing authority is Avangrid Renewables LLC, and it operates within the Western Electricity Coordinating Council (WECC) NERC region. Montague Solar is the fourth-largest solar plant in Oregon out of seven, and ranks 322nd nationally out of 639 solar plants.
In its most recent year of operation, Montague Solar generated 379,178 MWh of electricity, achieving a capacity factor of 26.7%. The plant has a reported power purchase agreement (PPA) price of $38.38 per MWh, according to data from Lawrence Berkeley National Laboratory (LBNL). The plant has been the subject of 10 news articles, covering topics such as grid impacts, regulatory issues, deals, and industry trends.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Avangrid Renewables LLC
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
7.2K MWh
Latest Month
379.2K MWh
Annual Generation
26.7%
Capacity Factor
Financial DataBeta
Source: LBNL Utility-Scale SolarHIGH
$37.1/MWh
LCOE (Levelized Cost)
$38.4/MWh
PPA Price
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
General
Seeing double the solar installations in Oregon | Projects Weekly
Avangrid has energized two solar projects in Wasco County, Oregon, totaling 200 MWac. Plus, Zelestra has expanded its relationship with Meta...
Solar Builder·4 weeks ago
Deals·m and a
Tata Trusts and Tata Sons Eye 4-6% Stake in SP Group Amid Debt Concerns
Tata Trusts and Tata Sons are reportedly negotiating to purchase a 4-6% stake in the Shapoorji Pallonji (SP) Group.
Tata Trusts (buyer)Tata Sons (buyer)
scanx.trade·5 months ago
Industry·earnings
Sterling and Wilson Renewable Energy Faces Multiple Financial Challenges
Sterling & Wilson Renewable Energy Limited is facing financial challenges due to an unfavorable arbitration outcome and a letter of credit...
Sterling and Wilson Renewable Energy Limited (other)
scanx.trade·6 months ago
General
Sterling and Wilson Renewable Energy Faces Multiple Financial Challenges
Sterling & Wilson Renewable Energy Limited is facing financial challenges due to an unfavorable arbitration outcome and a letter of credit...
scanx.trade·6 months ago
Last updated 2026-03-26
View all 10 articles