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Dave Johnston Mine / Glenrock Wind I

Brownfield

Glenrock, Wyoming

Legacy capacity
119
MW

Dave Johnston Mine / Glenrock Wind I is a former mine site in Glenrock, Wyoming. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 119 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 mine site
Site typeepa_brownfield
Existing capacity119 MW
Acreage14,000 ac

Grid hookup & remediation

Nearest substation1.9 mi
Cleanup statuscleanup_complete
Why this site is datacenter-attractive: a former mine 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 brownfield & retired-generation sites

A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near Dave Johnston Mine / Glenrock Wind I — the environmental neighborhood, ranked by legacy grid capacity.

SiteFormer useLegacy MWDistanceCleanup status
Dave Johnston Mine / Rolling Hillsformer mine site1190.0 micleanup_complete
Dave Johnston Mine / Glenrock Wind IIIformer mine site390.0 micleanup_complete

Derived from GridCensus's retired-generator & EPA brownfield dataset. Not a substitute for an ASTM E1527 Phase I environmental radius report.

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Nearby datacenter candidate sites

Scored candidate sites near Dave Johnston Mine / Glenrock Wind I, ranked by DC Readiness.

Candidate sites near Dave Johnston Mine / Glenrock Wind I
SiteTypeStateCountyVoltageCapacityQueue waitScore
Dave Johnston Mine / Rolling HillsBrownfieldWYConverse115 kV119 MW6.9 yrs65.0
LATIGOSubstation-AdjacentWYConverse County230 kV300 MW6.9 yrs62.3
UNKNOWN201361Substation-AdjacentWYConverse County230 kV300 MW6.9 yrs62.0
TAP208905Substation-AdjacentWYConverse County230 kV300 MW6.9 yrs62.0
WINDSTARSubstation-AdjacentWYConverse County230 kV300 MW6.9 yrs61.9
UNKNOWN204404Substation-AdjacentWYNatrona County115 kV100 MW6.9 yrs61.6
UNKNOWN201486Substation-AdjacentWYConverse County230 kV300 MW6.9 yrs61.5
EC Coal Converse CountyGreenfieldWYConverse County——1.7 yrs61.4

Nearby internet exchanges

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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 Dave Johnston Mine / Glenrock Wind I, Glenrock, Wyoming. Pro and Enterprise plans unlock the full 147,272-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.