Boundary

Power plant · Hydro

Key facts

Power plant · Hydro Operating

Commissioned: 1967
Net generation, 2025: 3,099,497 MWh
Grid: 230 kV to Bonneville Power Administration (SCL)
Location: Pend Oreille County, Washington
Operated by: City of Seattle - (WA)SourceEIA-860M Preliminary Monthly Electric Generator Inventory

Net generation MWh by year, 2001 to 2026

No companies named in filings yet.

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All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Gem	Unit ids G100000603779 Location id L100000603741
Grid	Nerc region WECC Report year 2025 Grid voltage kv 230 Transmission owner Bonneville Power Administration Balancing authority code SCL Balancing authority name Seattle City Light
Fuel burned (MMBtu), 2025	10,575,483
Capacity factor, 2025	0.305
Net generation (MWh), 2025	3,099,497
Balancing authority code	SCL

4 sources

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
EIA-860M Preliminary Monthly Electric Generator Inventory

Projects within 15 mi, nearest first.
Project	Kind	Away	MW
Sullivan CR Postponed	Hydro	8.6 mi	9

Sources