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DataCentersExposed
Mapped (unverified)

XO Fremont

47913;47923;47963 Warm Springs Boulevard · Alameda County, CA

Source: OpenStreetMap

XO Fremont is a mapped data center in Alameda County, CA. DataCentersExposed has documented a 65,815 sq ft footprint at this site.

Reporting by · Updated Jun 14, 2026

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Real parent
—
Operator
—
Est. capacity
~10-30 MW
Footprint
65,815 sq ft
Utility
Pacific Gas & Electric Co.
Grid
CISO
Attribution & capacity confidence:mediumprimary source
Status · click to filter

Most sites are mapped — located but awaiting a second source. How we verify

Dot size = disclosed capacity (MW). Smallest = undisclosed, not small.

Overview

source: link

XO Fremont is a mapped data center in Alameda County, California, listed in available records as an XO data center. Its reported footprint is 65,815 square feet. The site draws power from Pacific Gas & Electric Co. within the CISO balancing authority. No operator parent above the XO label is detailed in the records reviewed.

The grid behind this site, right now

source: CAISO · gridstatus
Clean right now
84%
Fossil right now
4%
Grid operator
CAISO
  • Solar62.2%
  • Imports12.0%
  • Wind7.6%
  • Nuclear6.5%
  • Natural Gas4.3%
  • Hydro4.0%
  • Geothermal2.2%
  • Biomass1.2%

Real-time generation mix for the CAISO grid this site draws from, as of Jun 16, 2026, 4:35 PM. ISO-wide, not this facility's own metering. Source: gridstatus.

In the news

source: GDELT

No recent coverage found for this facility.

Tax breaks & subsidies

source: Good Jobs First / GASB 77

No per-deal tax break is linked to this site yet. No state discloses the recipient of a data-center abatement at the facility level, so per-site deals are rare in the public record. If you have a development agreement or board resolution for this site, send it to us.

Water use

No public record of this facility's water use. We check state withdrawal reporting for self-supplied sites; municipally supplied sites only become visible through a public-records request to the local water utility — a per-facility request tool is coming. If you have a utility document for this site, send it to us.

EPA permits & violations

source: EPA ECHO

No reported violations as of last sync.

Air quality near this site

source: AirNow
22
O3
Good

Air Quality Index from the nearest AirNow reporting area (Fremont), as of 2026-06-10. Regional context — not this facility's own emissions.

Who lives nearby

source: Census ACS 2023
Median household income
$240.7K
People of color
92%
Below poverty
4%
Tract population
7,528

Demographics of the census tract this facility sits in (American Community Survey 5-year estimates). Environmental-justice context for who bears the local impacts.

Nearest school

source: HIFLD / NCES

The nearest public school, Warm Springs Elementary in Fremont, is 0.5 mi from this site (655 students). 2 public schools sit within a mile of the site.

Schools are sensitive receptors for the noise, backup-generator exhaust, and traffic a large data center brings. Straight-line distance to the nearest public school (HIFLD/NCES, US public schools only).

Hearings timeline

No public-hearing records linked to this site yet. We surface planning-commission and board-of-supervisors dates when a record names a facility. If you know of a hearing on this site, tell us.