Mammoth G3

Power plant · Geothermal

Key facts

Power plant · Geothermal Operating

Net generation MWh by year, 2001 to 2025

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

Attributes
Attribute	Value
Gem	Unit ids G100000700512, G100000700513, G100000700514 Location id L100000700279 Eia plant ids 10479
Grid	Nerc region WECC Report year 2025 Grid voltage kv 33 Transmission owner Southern California Edison Co Balancing authority code CISO Balancing authority name California Independent System Operator
Fuel burned (MMBtu), 2025	257,015
Capacity factor, 2025	0.573
Net generation (MWh), 2025	75,327
Balancing authority code	CISO

2 companies

Companies with an ownership or operating interest in this asset.
Company	Role	Share	As of	Source
Ormat Nevada Inc	Operator			EIA-860M
Mammoth Pacific LP	Owner	100.0%	Dec 31, 2025	EIA-860

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
EIA-860 Annual Electric Generator Report — Schedule 4 Owner (ownership shares per generator), plus Plant/Generator schedules