Tualatin Battery Energy Storage System — Plant Summary
- EIA Plant ID
- 68299
- Capacity
- 400 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Planned
- Location
- Washington, OR
- Operating Since
- —
- Generators
- 1
- Operator
- TUAL bn, LLC
- Parent Company
- —
- Balancing Authority
- Portland General Electric Company
- ISO/RTO
- —
- NERC Region
- WECC
Tualatin Battery Energy Storage System
PlannedBESS
Ranked #4 of 9 BESS plants in OR#56 of 837 nationally
400 MW BESS planned in Washington, OR — Portland General Electric Company
EIA
400 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
Planned: —
Planned Operation
Location
Coordinates
45.0000, -122.0000
County
Washington, OR
Nearby Plants
- Stone CreekHydro12 MW · 12.7 km
- Oak GroveHydro51 MW · 14.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | TUAL bn, LLC | — | — |
| Owner(s) | Cordelio Power Holdings, LLC, WestDevco, LLC | — | — |
| Status | Planned | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Tualatin Battery Energy Storage System is a 400 MW battery energy storage facility located in Washington County, Oregon. The plant is owned and operated by TUAL bn, LLC. It consists of a single generator utilizing battery technology and MWH as its primary fuel source. The facility operates within the Portland General Electric Company balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The Tualatin Battery Energy Storage System is ranked as the 5th largest of 8 battery storage plants in Oregon, and 97th out of 514 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Portland General Electric Company
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
No generation data available for this plant.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Industry·corporate
Tualatin-headquartered former Powin battery storage company to lay off another 25 employees
The Tualatin-headquartered battery storage company formerly known as Powin has said it plans to lay off 25 more workers — nine on-site...
Powin (operator)
valleytimes.news·7 months ago
Industry·corporate
Powin fueled the US grid storage boom. Then the company crashed.
The Oregon-based battery firm filed for bankruptcy this summer, jeopardizing its 11.3 gigawatt-hours of storage projects installed around...
Powin (operator)
Canary Media·8 months ago
Industry·corporate
US battery supplier Powin files for bankruptcy
The Oregon-based business has been hit by steepling tariffs as it imported lithium iron-phosphate (LFP) battery materials from China.
Powin (operator)
ESS News·9 months ago
Industry·corporate
Powin files for bankruptcy, names new CEO after more layoffs
Tualatin-based Powin has filed for bankruptcy and named a new CEO as it looks to stay in business. The move comes less than two weeks after the grid battery...
Powin (operator)
The Business Journals·9 months ago
Last updated 2026-03-14
View all 10 articles