200 MW BESS operating in Multnomah, OR — Portland General Electric Company
200 MW
Nameplate Capacity
1
Generators
unit
Batteries
Technology
2024
Operating Since
Coordinates
45.5598, -122.4201
County
Multnomah, OR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Troutdale Grid, LLC | — | — |
| Owner(s) | Troutdale Grid, LLC | — | — |
| Status | Operating | — | — |
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
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
−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.
$15.3/MWh
PPA Price
Troutdale Grid, LLC
Contract Seller
Per-Unit Cost Trends
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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