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Gridcensus

Sandow No 4

Brownfield

Rockdale, Milam, Texas · Luminant Generation Company LLC

Legacy capacity
591
MW

Sandow No 4 is a coal plant in Rockdale, Milam, Texas, retired 2018-01-01. Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for roughly 591 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 usecoal plant
Site typeretired_plant
Existing capacity591 MW
Retirement date2018-01-01
EIA plant ID#6648

Grid hookup & remediation

Nearest substation0.2 mi
Operator addressUS Hwy 1786, Rockdale, TX, 76567
Why this site is datacenter-attractive: a coal 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.

Site conditions & market — Milam County

County-level intelligence for this site's location — the power economics, water, hazard, connectivity, and workforce a developer screens before ever visiting. Assembled from FEMA NRI, BLS QCEW, FCC BDC, USGS water-use, and EIA.

Market & workforce

Total employment (laborshed)4,676
Construction employment888
Land value$4,490/acre
Datacenter tax incentivesales_tax_exemption

Power economics & interconnection

Commercial power rate12.56¢/kWh
Industrial power rate6.47¢/kWh
Load growth (FERC-714)2.5%

Water & cooling

Water stressMedium-High
Public water supply10.9 MGD
Industrial water use10.8 MGD
Cooling degree days2,600
Mean annual temp65°F

Hazard, flood & connectivity

FEMA risk index55.0 · Very High
Fiber providers9 · 42% served

County-level context — address-level utility offerings and flood zoning vary within the county. Confirm site-specific service with the utility and a Phase I ESA.

Nearby brownfield & retired-generation sites

A proximity screen of other retired-plant, contaminated, and EPA-flagged sites near Sandow No 4 — the environmental neighborhood, ranked by legacy grid capacity.

SiteFormer useLegacy MWDistanceCleanup status
Sandow No 5coal plant1,0250.2 mi—

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 Sandow No 4, ranked by DC Readiness.

Candidate sites near Sandow No 4
SiteTypeStateCountyVoltageCapacityQueue waitScore
OZ MilamGreenfieldTXMilam——3.4 yrs57.8
UNKNOWN301186Substation-AdjacentTXMilam County345 kV600 MW1.7 yrs57.8
EC Coal Williamson CountyGreenfieldTXWilliamson County——3.4 yrs57.6
OZ WilliamsonGreenfieldTXWilliamson——3.4 yrs57.3
OZ LeeGreenfieldTXLee——3.4 yrs57.3
EC Near Sandow No 4GreenfieldTXMilam——3.4 yrs57.1
UNKNOWN306562Substation-AdjacentTXMilam County345 kV600 MW1.7 yrs57.0
EC Near Sandow No 4GreenfieldTXMilam——3.4 yrs56.9

See all datacenter sites in Texas →

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

Every site and score for Sandow No 4, Rockdale, Milam, Texas 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.