Query
Lower Granite
Type
Entity Briefing
Entity
Lower Granite
Generated
2026-10-19T13:07:35.011Z

Briefing on Lower Granite

Entity Briefing
Generated Oct 19, 2026·Dataset freshness not reported
810 MW
Capacity
Operating
Current status
1975
Operating since
6
Generators
20.6%
Capacity factor
1461 GWh
Annual generation
Briefing/plantOperating

Lower Granite is a 810 MW Conventional Hydroelectric asset in Washington, currently Operating.

Lower Granite is reported in Washington since 1975 under USACE Northwestern Division. Available operating and financial measures include 20.6% capacity factor and 1461 GWh annual generation; $2294/kW reported CapEx.

Location
Whitman, Washington
Technology
Conventional Hydroelectric
Owner / parent
USACE Northwestern Division
Operator
USACE Northwestern Division
Grid
Bonneville Power Administration
Plant ID
6175

What stands out

1

Lower Granite is a 810 MW Conventional Hydroelectric asset in Washington with status Operating.

2

Latest annual operating measures report 20.6% capacity factor and 1461 GWh annual generation.

3

Available financial measures include $2294/kW CapEx.

4

Latest linked story: “Trump halts efforts to tear out Snake River dams in Eastern WA” (Tri-City Herald, 2025-06-12).

Market and operating context

Balancing authority
Bonneville Power Administration
NERC region
WECC
State rank
#10 of 73
National rank
#29 of 1,462

Why it matters

For this asset, operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.