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Brownfield Datacenter Sites in California

At a glance

California has 103 brownfield datacenter candidate sites, the most of 49 states for this site type and 13% of the 771 brownfield sites scored nationally. Brownfield land accounts for 1% of the state's 8,490 scored sites, against 0.5% nationally. The highest-scoring is TESLA Power Project in Alameda County at 66.5/100 DC Readiness.

Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.

103
Brownfield sites
57.9/100
Avg score (top 25)
California
State
Brownfield
Type

Top brownfield sites in California

Top Brownfield sites in California
SiteTypeCountyFormer useVoltageCapacityQueue waitScore
TESLA Power ProjectBrownfieldAlameda Countygas500 kV1,322 MW7.6 yrs66.5
Broadway (CA)BrownfieldLos Angeles Countygas66 kV167 MW7.6 yrs62.4
Hunters PointBrownfieldSan Mateo Countygas115 kV427 MW7.6 yrs61.3
Anaheim GTBrownfieldOrange Countygas66 kV49 MW7.6 yrs59.0
Paramount RefineryBrownfieldLos Angeles Countygas66 kV7 MW7.6 yrs59.0
UCLA So Campus Cogen ProjectBrownfieldLos Angeles Countygas230 kV15 MW7.6 yrs58.9
MagnoliaBrownfieldLos Angeles Countygas66 kV88 MW7.6 yrs58.8
Juniper Networks SunnyvaleBrownfieldAlameda Countygas115 kV1 MW7.6 yrs58.1
Central Utilities Plant LAXBrownfieldLos Angeles Countygas66 kV8 MW7.6 yrs57.9
SC 1 Data Center, Phase 2BrownfieldSanta Clara Countyoil60 kV2 MW7.6 yrs57.3
Amazon San BernardinoBrownfieldOrange Countygas500 kV1 MW7.6 yrs57.2
Extreme San IgnacioBrownfieldSanta Clara Countygas115 kV1 MW7.6 yrs57.1
Sierra Pacific Lincoln FacilityBrownfieldSutter Countybiomass66 kV13 MW7.6 yrs57.1
Commerce Refuse To EnergyBrownfieldLos Angeles Countywaste66 kV12 MW7.6 yrs57.0
Tequesquite LandfillBrownfieldRiversidelandfill66 kV8 MW7.6 yrs57.0
Richmond Refinery TG800BrownfieldMarin Countygas115 kV21 MW7.6 yrs56.8
Silver GateBrownfieldSan Diego Countyoil69 kV247 MW7.6 yrs56.7
Southeast Resource RecoveryBrownfieldOrange Countywaste66 kV36 MW7.6 yrs56.7
Pacific Coast PipelineBrownfieldVenturasuperfund69 kV3 MW7.6 yrs56.5
CES Placerita Power PlantBrownfieldLos Angeles Countygas66 kV60 MW7.6 yrs56.5
Palos Verdes Gas to EnergyBrownfieldLos Angeles Countygas66 kV13 MW7.6 yrs56.5
North HollywoodBrownfieldLos Angeles Countyhydro66 kV8 MW7.6 yrs56.1
Alvarado Hydro FacilityBrownfieldSan Diego Countyhydro69 kV4 MW7.6 yrs56.0
Honda TorranceBrownfieldLos Angeles Countygas66 kV1 MW7.6 yrs56.0
Turlock Irrigation District Fuel CellBrownfieldStanislaus Countybiomass66 kV1 MW7.6 yrs55.9

How does California compare with other states for brownfield sites?

With 103 sites, California ranks 1st of the 49 states that have any brownfield candidate sites. Nationally, brownfield sites average 57.5/100 DC Readiness, above the 53.0 average across all site types. Across every site type, California averages 45.4, the 52nd-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 7.6 years.

Where are the highest-scoring brownfield sites in California?

The top 25 range from 66.5 to 55.9 on the 0–100 DC Readiness Score. They are concentrated in Los Angeles County (10), Orange County (3), Alameda County (2) and Santa Clara County (2). By grid region, 20 are in CAISO and 5 are in WECC.

County pages: Los Angeles County · Orange County · Alameda County · Santa Clara County

What power, fiber and flood exposure do these brownfield sites have?

Of the top 25 brownfield sites in California, 25 have a recorded nearest-substation voltage, with a median of 66 kV; for 3 that substation is rated 230 kV or higher. Their counties have a median of 18 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 10 km. The median interconnection-queue wait in their markets is 7.6 years. None of the 25 with a mapped FEMA flood zone sits in a high-risk (A or V) zone. 6 lie within 25 km of a binding transmission constraint.

Frequently asked questions

How many brownfield datacenter sites are in California?

GridCensus catalogs 103 brownfield datacenter candidate sites in California, 13% of the national total for this type (1st of 49 states).

What is a brownfield datacenter site?

Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.

What is the best brownfield datacenter site in California?

By DC Readiness Score, TESLA Power Project in Alameda County ranks first at 66.5/100, followed by Broadway (CA) in Los Angeles County at 62.4.

Which California counties have the best brownfield sites?

The top 25 brownfield sites in California are concentrated in Los Angeles County (10), Orange County (3), Alameda County (2) and Santa Clara County (2).

How does California score for datacenters overall?

All 8,490 scored sites in California average 45.4/100 DC Readiness, the 52nd-highest of 52 states, against a national average of 53.0.

More on brownfield sites and California

Brownfield sites in other states

Dataset updated . Screening estimates derived from public data sources.

About this data

Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.

Cite as: GridCensus, “Brownfield datacenter sites in California”, https://gridcensus.com/site-types/brownfield/california (data as of November 12, 2026).

Go deeper than the public screen

Every site and score for Brownfield sites in California 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.