Skip to content
All records
Data center siteSite record

Google Mesa Data Center Campus

Mesa / Elliot and Sossaman roads, Arizona, United StatesUnder construction
Capacity
No public figure
Lead participant
Google
Developer
Last updated
Aug 24, 2026
Most recent public record update

About Google Mesa Data Center Campus

Google's air-cooled Mesa campus is a three-phase development supported by a new SRP switchyard and a broader Arizona clean-energy portfolio. Google Mesa Data Center Campus is in Mesa / Elliot and Sossaman roads, AZ, US and is a data center campus with construction status. Participants include Google LLC as developer, Stone Applications, LLC as owner, Salt River Project as utility provider, NextEra Energy Resources as utility provider. Development comprises Phase I, Phase II (construction), Phase III (preconstruction). Key milestones include Phase III enters design review. (2025-10-28) and $1B and 750,000-square-foot milestone. (2029-07-01). 230 kv switchyard and transmission — 22 maximum_double_circuit_structures: Project Red Hawk switchyard and transmission route; number is structures, not circuits or MW. clean energy portfolio — 430 MW_minimum_new_to_grid: Arizona portfolio supports hourly matching; not campus demand or dedicated line capacity. Permitting includes certificate of environmental compatibility for Project Red Hawk transmission line and switchyard (approved) and design review for Google Mesa Phase III (under review reported). Incentives include government property lease excise tax (approved development agreement) for City owns/leases project property under a 25-year GPLET structure at 150% of the statutory excise rate described in 2019 minutes.

Projects sharing a market, utility, or organization.

1 related

Capacity

Operating capacityAn operating IT-capacity figure has not been publicly disclosed.

No additional capacity claims are published.

Development

3 phases · 4 milestones
Phase IStatus Not Disclosed

Approximately 288,530 square feet; operating status held blank pending primary confirmation.

1 building

Phase IIUnder Construction

Approximately 280,000 square feet.

1 building

Phase IIIAnnounced Or Preconstruction

Approximately 283,500 square feet in October 2025 design review.

1 building

Jun 27, 2019
Mesa approves Red Hawk development framework
Completed
Nov 28, 2023
Google announces construction and air-cooled design
Completed
Oct 28, 2025
Phase III enters design review
In Progress
Jul 1, 2029
$1B and 750,000-square-foot milestone
Forecast

Infrastructure

Electric GridSecured Or Contracted

22 maximum double circuit structures

Project Red Hawk switchyard and transmission route; number is structures, not circuits or MW.

Renewable Energy SupplySecured Or Contracted

430 MW minimum new to grid

Arizona portfolio supports hourly matching; not campus demand or dedicated line capacity.

Cooling SystemReported Context

Air-cooled design superseded the original water-cooled plan; historic water authorization remains legal context.

Project map

0 of 1 project point mapped
Infrastructure facts
3
Mapped records
1
Capacity figures
2

No map point available

Power & interconnection: 2Cooling & water: 1

Facts & sources

Published claims and their source links.

9 facts
Site Area
187 acres approximate
Actual
Planned Total Floor Area
750,000 square feet minimum
Actual
Planned Total Investment
$1,000,000,000 minimum
Fact
Phase One Investment
$600,000,000
Fact
Current Google Status
In development
Actual
Phase Three Floor Area
283,500 square feet approximate
Actual
Carbon Free Energy Portfolio
430 MW minimum
Fact
Hourly Carbon Free Energy Goal
80 percent by 2026
Actual
Cooling Design
Air cooled
Actual