How many battery storage projects are in Oregon?

4, with 492 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.

Is there a map of Oregon battery storage projects?

Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.

Which is the largest battery storage project in Oregon?

Seaside BESS, at 200 MW. The table is sorted largest first, so the rest follow it.

Is there a battery storage project near me in Oregon?

The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.

Which grid operator runs Oregon's battery storage projects?

No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Oregon is largely a vertically integrated utility rather than an organised market.

How current is this, and what is left out?

EIA-860M for 2026-07. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.

Battery Storage Projects in Oregon

Every operating battery storage project in Oregon on EIA-860M for 2026-07: 4 plants, 4 storage units and 492 MW of nameplate capacity across 2 counties.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Plants: 4; 4 generating units
Nameplate capacity: 492 MW
Counties: 2
Grid operator: Mixed; no single ISO covers a majority

Map of battery storage projects in Oregon

Every one of the 4 plants is drawn at the coordinate EIA files for it.

Loading map…

Battery · 4

List of battery storage projects in Oregon

Sort by any column. Capacity is nameplate, summed across every generating unit EIA lists at the site.

battery storage projects in Oregon

Seaside BESSBatteries	Portland General Electric Co	Multnomah	200	1	2025	Operating
Sundial (Troutdale) BESSBatteries	Troutdale Grid, LLC	Multnomah	200	1	2024	Operating
Constable BESSBatteries	Portland General Electric Co	Washington	75	1	2024	Operating
Coffee Creek BESSBatteries	Portland General Electric Co	Washington	17	1	2024	Operating

Largest battery storage projects in Oregon

1Seaside BESSMultnomah County, Oregon200 MW
2Sundial (Troutdale) BESSMultnomah County, Oregon200 MW
3Constable BESSWashington County, Oregon75 MW
4Coffee Creek BESSWashington County, Oregon17 MW

Battery storage projects by county in Oregon

The county EIA files against each plant. It is the fastest way to find the plant nearest a given town.

County	Plants	Nameplate MW
Multnomah	2	400
Washington	2	92

Battery Storage Projects in Oregon: FAQ

How many battery storage projects are in Oregon?: 4, with 492 MW of nameplate capacity between them, spread over 2 counties. That is the EIA-860M operating count for 2026-07.
Is there a map of Oregon battery storage projects?: Yes — the map above. Each dot is one battery storage project, sized by nameplate capacity and placed at the coordinates EIA files for it.
Which is the largest battery storage project in Oregon?: Seaside BESS, at 200 MW. The table is sorted largest first, so the rest follow it.
Is there a battery storage project near me in Oregon?: The county roll-up below groups every plant by county, which is the quickest way to find the one closest to a given town.
Which grid operator runs Oregon's battery storage projects?: No single ISO or RTO covers most of them. EIA files each plant against its own balancing authority, which in Oregon is largely a vertically integrated utility rather than an organised market.
How current is this, and what is left out?: EIA-860M for 2026-07. EIA technology "Batteries" — grid-connected electrochemical storage of 1 MW and above. Plants below 1 MW are not surveyed by EIA and so are absent; retirements and additions after 2026-07 arrive with the next monthly release.