Encogen

Power plant · Gas, combined cycle

Key facts

Power plant · Gas, combined cycle Operating

Net generation MWh by year, 2001 to 2026

Fuel burned MMBtu by year, 2001 to 2026

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Technology: Gas, combined cycle source: “Natural Gas Fired Combined Cycle”
Age: 33 years since 1993
Unused energy: 1,191 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate: 9,361 Btu/kWh 2025

All 8 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Gem	Parents Name Macquarie Asset Management Pty Ltd Share pct 15.80 Gem entity id E100001015247 Name Ontario Teachers Pension Plan Board Share pct 15.80 Gem entity id E100001014809 Unit ids G100000402178 Location id L100000402239 Eia plant ids 7870
Grid	Nerc region WECC Report year 2025 Grid voltage kv 115 Transmission owner Puget Sound Energy Inc Balancing authority code PSEI Balancing authority name Puget Sound Energy
EPA greenhouse gas reporting (GHGRP)	EPA FRS ID 110000490013 Subparts reported D NAICS code 221112 Subpart PP (CO2 supply) No Subpart RR (geologic sequestration) No Subpart UU (CO2 injection) No Reporting year 2023 GHGRP facility ID 1006502
Fuel burned (MMBtu), 2025	3,314,329
Capacity factor, 2025	0.229
Heat rate (Btu/kWh), 2025	9,361
Net generation (MWh), 2025	354,059.0
Balancing authority code	PSEI

2 companies

Companies with an ownership or operating interest in this asset.
Company	Role	Share	As of	Source
Puget Sound Energy Inc	Operator			EIA-860M
PUGET HOLDINGS LLC	Owner	100.0%	Dec 31, 2023	EPA GHGRP

5 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
EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)