Sundial (Troutdale) BESS — Plant Summary
- EIA Plant ID
- 67869
- Capacity
- 200 MW
- Primary Fuel
- Battery Storage
- Technology
- Batteries
- Status
- Operating
- Location
- Multnomah, OR
- Operating Since
- 2024
- Generators
- 1
- Operator
- Troutdale Grid, LLC
- Parent Company
- —
- Annual Generation
- -33,415 MWh
- Capacity Factor
- -1.9%
- Balancing Authority
- Portland General Electric Company
- ISO/RTO
- —
- NERC Region
- WECC
Sundial (Troutdale) BESS
OperatingBESS
Ranked #6 of 9 BESS plants in OR#186 of 837 nationally
200 MW BESS operating in Multnomah, OR — Portland General Electric Company
EIA
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Location
Coordinates
45.5598, -122.4201
County
Multnomah, OR
Nearby Plants
- Dominguez Energy StorageBESS200 MW · 0.0 km
- Luz SolarSolar1.1 MW · 5.7 km
- SulusSolar29Solar2.6 MW · 15.2 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Troutdale Grid, LLC | — | — |
| Owner(s) | Troutdale Grid, LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Sundial (Troutdale) BESS is a 200 MW battery energy storage system located in Multnomah County, Oregon. The facility, which began operating in 2024, is owned and operated by Troutdale Grid, LLC. It consists of a single generator utilizing battery technology with a lithium-ion (LIB) chemistry. The plant has a total storage capacity of 800 MWh, providing a duration of 4 hours at its full power output. Sundial BESS ranks as the 7th largest of 8 battery storage facilities in Oregon, and 324th nationally out of 514 such plants.
The plant's primary fuel is listed as MWH, indicating that it draws power from the grid to charge its batteries. The balancing authority for the facility is Portland General Electric Company, and it operates within the Western Electricity Coordinating Council (WECC) NERC region. Financial data indicates that the plant has a power purchase agreement (PPA) price of $15.35 per MWh, according to FERC EQR filings.
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
−2.9K MWh
Net Charging
-33.4K MWh
Annual Net Energy
-1.9%
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial DataBeta
Source: FERC Electric Quarterly ReportsHIGH
$15.3/MWh
PPA Price
Troutdale Grid, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (7)Beta
Regulatory·permitting
Jupiter Battery Storage Proposal That Threatens Residents Moved To Public Hearing Under Public Pressure
The Real Story – A Column By Dirk Knudsen. The Hillsboro Herald has covered the pending approval for a massive Lithium-Ion Battery Storage...
Dirk Knudsen (other)
The Hillsboro Herald·6 months ago
Grid·capacity addition
PGE completes 1.9 GWh of battery storage projects in Oregon with Seaside’s 800 MWh now operating
The new portfolio consists of three four-hour duration projects finalized through the utility's 2021 all-source RFP.
PGE (operator)
ESS News·7 months ago
Grid·capacity addition
Portland General energizes 1.9 GWh of lithium batteries in major storage expansion
The Seaside, Sundial and Constable battery projects bring the Oregon utility's large-scale storage capacity from 17 MW to 492 MW.
Portland General (operator)
Utility Dive·7 months ago
Grid·capacity addition
PGE completes BESS projects with 475MW capacity
Portland General Electric (PGE), the energy generation, transmission and distributor, said it has completed three utility-scale battery...
Portland General Electric (operator)PGE (operator)
www.bestmag.co.uk·7 months ago
Last updated 2026-03-26
View all 7 articles