Query
Wanapum
Type
Entity Briefing
Entity
Wanapum
Generated
2026-10-18T02:33:01.922Z

Briefing on Wanapum

Entity Briefing
Generated Oct 18, 2026·Dataset freshness not reported
1.2 GW
Capacity
Operating
Current status
2011
Operating since
10
Generators
41.5%
Capacity factor
4438 GWh
Annual generation
Briefing/plantOperating

Wanapum is a 1.2 GW Conventional Hydroelectric asset in Washington, currently Operating.

Wanapum is reported in Washington since 2011 under PUD No 2 of Grant County - (WA). Available operating and financial measures include 41.5% capacity factor and 4438 GWh annual generation; $2294/kW reported CapEx.

Location
Grant, Washington
Technology
Conventional Hydroelectric
Owner / parent
PUD No 2 of Grant County - (WA)
Operator
PUD No 2 of Grant County - (WA)
Grid
Public Utility District No. 2 of Grant County, Washington
Plant ID
3888

What stands out

1

Wanapum is a 1.2 GW Conventional Hydroelectric asset in Washington with status Operating.

2

Latest annual operating measures report 41.5% capacity factor and 4438 GWh annual generation.

3

Available financial measures include $2294/kW CapEx.

4

Latest linked story: “This Washington state dam is trying to be fish-friendly” (WHYY, 2017-04-03).

Market and operating context

Balancing authority
Public Utility District No. 2 of Grant County, Washington
NERC region
WECC
State rank
#4 of 73
National rank
#13 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.