Mammoth G2

Brownfield

Mammoth Lakes, Mono, California · Ormat Nevada Inc

Legacy capacity
15
MW

Mammoth G2 is a former geothermal site in Mammoth Lakes, Mono, California, retired 2013-04-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 15 MW of generation, so the grid hookup, transmission rights, and often cooling-water access are already in place — collapsing the speed-to-power timeline versus a greenfield build.

Former use & capacity

Former useformer geothermal site
Site typeretired_plant
Existing capacity15 MW
Retirement date2013-04-01
EIA plant ID#10481

Grid hookup & remediation

Nearest substation0.0 mi
OperatorOrmat Nevada Inc
Operator address85 Casa Diablo, Mammoth Lakes, CA, 93546
Why this site is datacenter-attractive: a former geothermal site of this scale leaves behind a high-capacity grid interconnection that a new load can re-use, frequently shaving years off the interconnection queue. Retired-plant sites also tend to be already zoned for heavy industrial use with established road, rail, and water infrastructure.

Nearby datacenter candidate sites

Scored candidate sites near Mammoth G2, ranked by DC Readiness.

Candidate sites near Mammoth G2
SiteTypeStateCountyVoltageCapacityQueue waitScore
SHERWINSubstation-AdjacentCAMono County115 kV100 MW5.8 yrs56.0
Greenfield (CELILO - SYLMAR EAST)GreenfieldCAMono County1000 kV1,000 MW5.8 yrs55.8
Greenfield (CELILO - SYLMAR EAST)GreenfieldCAMono County1000 kV1,000 MW5.8 yrs55.5
Greenfield (CELILO - SYLMAR EAST)GreenfieldCAMono County1000 kV1,000 MW5.8 yrs54.9
Greenfield (CELILO - SYLMAR EAST)GreenfieldCAMono County1000 kV1,000 MW5.8 yrs54.8
RUSH CREEKSubstation-AdjacentCAMono County115 kV100 MW5.8 yrs54.6
Greenfield (CELILO - SYLMAR EAST)GreenfieldCAMono County1000 kV1,000 MW5.8 yrs53.8
LEE VININGSubstation-AdjacentCAMono County115 kV100 MW5.8 yrs53.8

See all datacenter sites in California →

Dataset updated . Screening estimates derived from public data sources.

Brownfield attributes are derived from EIA retired-generator and EPA public data. Existing capacity reflects the retired plant's historical nameplate, not deliverable interconnection for a new load. Confirm reusable interconnection rights, remediation status, and site availability with the utility, ISO, and current owner.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for Mammoth G2, Mammoth Lakes, Mono, California. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.

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