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Gridcensus

Electric Substations in Washington

2,106 catalogued substations in Washington, 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
SACAJAWEA500 kV3—
MAPLE VALLEY500 kV12—
SCHULTZ500 kV10—
LITTLE GOOSE500 kV5—
TAP200917500 kV3—
COLUMBIA GENERATING STATION500 kV3—
ASHE500 kV9—
BELL500 kV18—
MONROE500 kV6—
COVINGTON500 kV14—
SATSOP500 kV6—
SICKLER500 kV3—
GRAND COULEE 500KV500 kV11—
BIG HANAFORD500 kV2—
WAUTOMA500 kV5—
HANFORD500 kV6—
LOWER MONUMENTAL500 kV7—
LOWER GRANITE500 kV4—
CHIEF JOSEPH500 kV14—
CENTRAL FERRY500 kV7—
RAVER500 kV9—
TAP206230500 kV3—
ROCK CREEK500 kV7—
SNO-KING500 kV10—
GRAND COULEE 230KV500 kV16—
OLYMPIA500 kV12—
VANTAGE500 kV12—
COLUMBIA500 kV15—
TAP203128500 kV3—
PHALEN GULCH500 kV3—
CUSTER500 kV9—
PAUL500 kV8—
ECHO LAKE500 kV4—
NAPAVINE500 kV5—
ROSS345 kV15—
ROCKY REACH345 kV13—
SNOHOMISH345 kV19—
TAP209123345 kV3—
TAP206473275 kV3—
MOSSYROCK PP240 kV5—
MAYFIELD240 kV4—
SAMMAMISH230 kV9—
SOUTH TACOMA230 kV4—
BETTAS ROAD230 kV4—
INTALCO230 kV2—
POTHOLES230 kV3—
ROCKY FORD230 kV6—
DOUGLAS230 kV6—
BOTHELL230 kV13—
SHELTON230 kV15—
NORTH BONNEVILLE230 kV9—
SEDRO WOOLLEY230 kV12—
COWLITZ230 kV11—
KITSAP230 kV7—
WHITE RIVER230 kV16—
HARVALUM230 kV3—
SPRING CREEK230 kV3—
SAND DUNES230 kV7—
SIFTON230 kV9—
BELLINGHAM230 kV6—

See datacenter candidate sites in Washington →

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 Washington. 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.