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Gridcensus

Electric Substations in Connecticut

300 catalogued substations in Connecticut, with the highest-voltage facilities listed first. Each substation profile shows voltage class, operator, connected transmission lines, and the datacenter candidate sites closest to it.

SubstationMax voltageConnected linesOperator
BARBOUR HILL345 kV7—
KILLINGLY345 kV6—
BRIDGEPORT HARBOR345 kV6—
NORTH BLOOMFIELD345 kV9—
SCOVILL ROCK345 kV5—
LONG MOUNTAIN345 kV4—
TAP136499345 kV2—
BRIDGEPORT RESCO345 kV4—
NEW HAVEN HARBOR345 kV7—
SOUTHINGTON345 kV14—
NO. WALL345 kV4—
HADDAM345 kV7—
MONTVILLE345 kV13—
KLEEN345 kV3—
HADDAM NECK345 kV3—
CARD`345 kV9—
FROST BRIDGE345 kV10—
PLUMTREE345 kV6—
MANCHESTER345 kV10—
MILLSTONE345 kV10—
LAKE ROAD345 kV4—
BOKUM115 kV5—
GREEN HILL115 kV2—
TAP135700115 kV3—
SASCO CREEK115 kV2—
BRANDFORD115 kV4—
DARIEN115 kV2—
FLAX HILL115 kV2—
NORWALK115 kV5—
NORWALK HARBOR115 kV5—
TAP135698115 kV3—
BRISTOL115 kV2—
TRACY115 kV3—
BRANDFORD RR115 kV2—
SALISBURY115 kV2—
CAMPVILLE115 kV5—
TUNNEL115 kV7—
DUDLEY115 kV1—
BEAN HILL115 kV2—
STOCKHOUSE RD115 kV2—
WEST SIDE115 kV2—
STEPSTONE115 kV2—
BERLIN115 kV6—
HANOVER ST115 kV2—
WEST RIVER115 kV4—
PORTLAND115 kV3—
P & W AIRCRAFT115 kV2—
GRAND AVE115 kV2—
FRANKLIN DRIVE115 kV3—
CANAL ST115 kV2—
FORESTVILLE115 kV2—
TAP136415115 kV3—
BLACK ROCK115 kV3—
FARMINGTON115 kV2—
EAST NEW BRITAIN115 kV2—
NEWINGTON115 kV3—
SOUTH MEADOW115 kV6—
RIVERSIDE DR115 kV2—
EAST HARTFORD115 kV2—
TAP136414115 kV3—

See datacenter candidate sites in Connecticut →

Dataset updated . Screening estimates derived from public data sources.

Go deeper than the public screen

This page shows a public slice of the GridCensus dataset for substations in Connecticut. 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.