Brownfield & Retired Power Plant Sites

Retired generation sites are among the most attractive datacenter redevelopment targets: the existing interconnection was sized for utility-scale 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. Browse GridCensus's brownfield and retired-plant catalog by state.

California194 sites Massachusetts174 sites New Jersey147 sites New York110 sites Texas110 sites Florida90 sites Illinois68 sites Iowa62 sites Minnesota60 sites Pennsylvania59 sites Michigan54 sites Ohio52 sites Wisconsin47 sites Kansas46 sites Indiana45 sites North Carolina41 sites Missouri39 sites Georgia37 sites Louisiana37 sites Connecticut36 sites South Carolina35 sites Virginia34 sites Colorado33 sites Alaska31 sites Maryland31 sites Vermont27 sites Nevada27 sites Maine25 sites Arizona23 sites Kentucky22 sites Tennessee22 sites New Mexico22 sites Oklahoma22 sites Alabama21 sites Rhode Island21 sites Washington21 sites Utah20 sites Hawaii16 sites Arkansas15 sites Oregon15 sites Mississippi13 sites Nebraska12 sites Wyoming11 sites South Dakota10 sites Delaware9 sites West Virginia9 sites North Dakota8 sites Montana7 sites Idaho6 sites New Hampshire4 sites District of Columbia1 sites

Dataset updated November 2026. Screening estimates derived from public data sources.

Go deeper than the public screen

Every site and score 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.

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