Ocotillo

Brownfield

Tempe, Maricopa, Arizona · Arizona Public Service Co

Legacy capacity
227
MW

Ocotillo is a natural gas plant in Tempe, Maricopa, Arizona, retired 2019-01-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 227 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 usenatural gas plant
Site typeretired_plant
Existing capacity227 MW
Retirement date2019-01-01
EIA plant ID#116

Grid hookup & remediation

Nearest substation0.1 mi
OperatorArizona Public Service Co
Operator address1500 East University, Tempe, AZ, 85281
Why this site is datacenter-attractive: a natural gas plant 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 Ocotillo, ranked by DC Readiness.

Candidate sites near Ocotillo
SiteTypeStateCountyVoltageCapacityQueue waitScore
BROWNINGSubstation-AdjacentAZPinal County500 kV1,000 MW5.7 yrs72.6
MORGANSubstation-AdjacentAZMaricopa County500 kV1,000 MW5.7 yrs72.5
PINNACLE PEAK APSSubstation-AdjacentAZMaricopa County500 kV1,000 MW5.7 yrs72.4
KYRENESubstation-AdjacentAZMaricopa County500 kV1,000 MW5.7 yrs70.6
CORBELLSubstation-AdjacentAZMaricopa County230 kV300 MW5.7 yrs69.0
SCHRADERSubstation-AdjacentAZPinal County230 kV300 MW5.7 yrs68.8
WARDSubstation-AdjacentAZMaricopa County230 kV300 MW5.7 yrs68.7
ANDERSONSubstation-AdjacentAZMaricopa County230 kV300 MW5.7 yrs68.7

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.

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This page shows a public slice of the GridCensus dataset for Ocotillo, Tempe, Maricopa, Arizona. 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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