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Gridcensus

JOLIET

Substation

Louisiana

Max voltage
230
kV

JOLIET is an electric transmission substation in Louisiana. It is classified as high-voltage (230 kv) and connects 1 transmission line. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.

Voltage & classification

Max voltage230 kV
Min voltage230 kV
Voltage classHigh-voltage (230 kV)
Connected lines1

Ownership & operation

Operator not catalogued for this substation.

Coordinates29.9645, -90.1186

Nearby datacenter candidate sites

Scored candidate sites within roughly 25 miles of JOLIET, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.

Candidate sites near JOLIET substation
SiteTypeStateCountyVoltageCapacityQueue waitScore
MICHOUD STATIONSubstation-AdjacentLAOrleans Parish230 kV300 MW4.3 yrs66.5
UNKNOWN112635Substation-AdjacentLASt. Charles Parish230 kV300 MW4.3 yrs66.1
WATERFORD 500KVSubstation-AdjacentLASt. Charles Parish500 kV1,000 MW4.3 yrs65.0
UNKNOWN112611Substation-AdjacentLASt. Charles Parish230 kV300 MW4.3 yrs64.2
DELTASubstation-AdjacentLAOrleans Parish230 kV300 MW4.3 yrs64.2
UNKNOWN112652Substation-AdjacentLAOrleans Parish230 kV300 MW4.3 yrs64.2
DERBIGNYSubstation-AdjacentLAOrleans Parish230 kV300 MW4.3 yrs64.1
UNKNOWN113056Substation-AdjacentLAOrleans Parish230 kV300 MW4.3 yrs64.1

Dataset updated . Screening estimates derived from public data sources.

Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.

Go deeper than the public screen

Every site and score for JOLIET substation, Louisiana is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.