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DataCentersExposed
Operatingedge

Lumen Sunnyvale 1

1380 Kifer Road · Sunnyvale, Santa Clara County, CA

Source: OpenStreetMap

Lumen Sunnyvale 1 is an operating data center in Santa Clara County, CA, operated by Lumen Technologies, Inc.. DataCentersExposed has documented a 77,132 sq ft footprint at this site.

Reporting by · Updated Jun 17, 2026

Real parent
Lumen Technologies, Inc.
Operator
Lumen Technologies, Inc.
Est. capacity
~15-35 MW
Footprint
77,132 sq ft
Utility
Pacific Gas & Electric Co.
Grid
CISO
Attribution & capacity confidence:mediumprimary source

Overview

source: link

Lumen Sunnyvale 1 is an operating edge data center in Sunnyvale, Santa Clara County, California, run by Lumen Technologies, Inc. Its reported footprint is 77,132 square feet. The site draws power from Pacific Gas & Electric Co. inside the CISO balancing authority.

Operator chain

The grid behind this site, right now

source: CAISO · gridstatus
Clean right now
71%
Fossil right now
29%
Grid operator
CAISO
  • Solar46.8%
  • Natural Gas28.7%
  • Wind9.2%
  • Hydro7.3%
  • Nuclear5.3%
  • Geothermal1.8%
  • Biomass0.9%

Real-time generation mix for the CAISO grid this site draws from, as of Jul 15, 2026, 10:20 PM. ISO-wide, not this facility's own metering. Source: gridstatus.

Grid & water — why here

source: HIFLD · EPA
Nearest substation
0.6 mi
Zeno · 60 kV
Transmission line
243 ft
60 kV line
Municipal water
Served
City Of Sunnyvale

The closest existing grid infrastructure and the municipal water system this location sits in — the same constraints the buildout model screens on (it won't site a campus more than ~2 km from a substation or ~5 km from municipal water). Distances are straight-line to public HIFLD/EPA features, not a metered connection.

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

Modeled estimate~93.9K gpd
Direct (onsite cooling)
~50.7K gpd
Indirect (its electricity)
~43.2K gpd

No measured record exists, so this is a low-confidence model from 5 MW (interconnection capacity): 2 L/kWh cooling (hot climate) + 0.45 gal/kWh embedded in US grid average. How we estimate. Have a utility document? Send it and we'll replace this with the real figure.

EPA permits & violations

source: EPA ECHO

No reported violations as of last sync.

Air quality near this site

source: AirNow
59
PM2.5
Moderate
33
O3
Good

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

Who lives nearby

source: Census ACS 2023
Median household income
$250K
People of color
82%
Below poverty
8%
Tract population
5,781

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, Adrian Wilcox High in Santa Clara, is 0.5 mi from this site (1,859 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.

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