Hardin Generator Project

Power plant · Coal

Key facts

Power plant · Coal Operating

Net generation MWh by year, 2006 to 2025

Fuel burned MMBtu by year, 2006 to 2025

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Technology: Coal source: “Conventional Steam Coal”
Age: 20 years since 2006
Unused energy: 836 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: 14,354 Btu/kWh 2025

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

Attributes
Attribute	Value
Gem	Parents Name Heorot Power Management LLC Share pct 100 Gem entity id E100001001317 Unit ids G100000103642 Location id L100000104034
Grid	Nerc region WECC Report year 2025 Grid voltage kv 115 Transmission owner NorthWestern Energy LLC - (MT) Balancing authority code NWMT Balancing authority name NorthWestern Energy (NWMT)
EPA greenhouse gas reporting (GHGRP)	EPA FRS ID 110071159594 Subparts reported C, 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 1000157
Fuel burned (MMBtu), 2025	2,554,352
Capacity factor, 2025	0.176
Heat rate (Btu/kWh), 2025	14,354.5
Net generation (MWh), 2025	177,948.0
Balancing authority code	NWMT

2 companies

Companies with an ownership or operating interest in this asset.
Company	Role	Share	As of	Source
Heorot Power Management	Operator			EIA-860M
HEOROT POWER 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)

Projects within 15 mi, nearest first.
Project	Kind	Away	MW
LIEFERN DATA CENTER Built	Large load	0.6 mi

Sources