Skip to content
CARTIS

Stream SATB San Antonio Campus

San Antonio, Texas, United StatesUnder construction
Evidence
Planned critical IT
200 MW
Updated
Oct 28, 2026
Utility
CPS Energy

Stream's third San Antonio campus is officially listed under construction. SATB1 is fully leased, while the five-building campus is planned for 200 MW of IT capacity and 1.5 million square feet at full build.

Capacity

Campus IT capacity

Planned / design or future potential

200 MW

Source

Available future capacity

Planned / design or future potential

120 MW

Source

Substation capacity

Actual

334 MW

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

SATB1 / San Antonio IIIUnder construction

1 building

First 300,000-square-foot facility. Historical Q2 2025 occupancy target is not an achieved milestone.

SATB full campusPlanned

5 buildings

Three buildings/120 MW remain marketed as available; no current live capacity inferred.

Milestones (4)
SATB campus groundbreaking announced

Jun 26, 2024 · Recorded actual event

Completed · Construction started

Source not linked
Data Hall 2 and 4 fit-outs registered to start

Nov 1, 2024 · Recorded actual event

Completed · Status changed

Source not linked
Original occupancy target passed without captured completion evidence

Q2 2025 · Recorded actual event

Completed · Forecast completion

Source not linked
TDLR completion date is not occupancy proof

Dec 1, 2025 · Recorded actual event

Completed · Status changed

Source not linked

Participants

Stream Data Centers

Operator

Sources by role
Operator (1)
Operator (1)
Operator (1)
Other participants (3)
Corgan

Contractor

Sources by role
Contractor (1)
Contractor (1)
CPS Energy

Utility provider

Sources by role
Utility provider (1)
Texas Department of Licensing and Regulation

Government authority

Sources by role
Government authority (1)
Government authority (1)

Capital & incentives

Capital claims and financing records may overlap. Their amounts are not added together.

Capital claims

Project investment

Transaction scope

$400,000,000

Source

Financing records

Investment commitment

$400m

Not stated

Operator-marketed campus investment figure; not a financing close or spent-to-date value.

Parties & sources

Stream Data Centers (Sponsor)

Sources (1)

Site & development

Site area

Actual

135 acres

Source

Campus building count

Actual

5 buildings

Source

Campus gross area

Forecast

1,500,000 square feet

Source

First building area

Forecast

300,000 square feet

Source

First building lease status

Actual

Fully leased

Source

Technical specifications

Cooling water claim

Forecast

0 WUE

Source

Additional project facts

Operating status

Actual

Under construction

Source

Historical occupancy target

Forecast

2025-Q2

Source

Infrastructure & permits

Technical details (5)
Electric grid

Planned or represented

200 MW IT

Five-building campus envelope; not current live capacity.

Electric grid

Planned or represented

40 MW IT

Per-building design basis for up to five facilities.

Electric grid

Planned or represented

120 MW IT

Three later buildings marketed as available; not live capacity.

Electric grid

Under construction

334 MW utility

Dual-fed breaker-and-a-half CPS substation; utility basis, not IT load.

Cooling system

Planned or represented

0 WUE

Operator markets zero-water-use air/liquid-ready cooling; verify measured operating WUE after opening.

Other · Under review

SATB1 Data Hall 2

Texas Department of Licensing and Regulation

Jul 29, 2024

Sources (1)
Other · Under review

SATB1 Data Hall 4

Texas Department of Licensing and Regulation

Sep 18, 2024

Sources (1)

Public-source research. Plans may change. See Evidence for sources and qualifications.

Related projects (4)
CyrusOne SAT1 San Antonio Data Center

Operating · San Antonio, Texas, United States

Same locality: San Antonio

Compare in a collection
CyrusOne SAT2–SAT4 San Antonio Data Center Campus

Partially operational · San Antonio, Texas, United States

Same locality: San Antonio

Compare in a collection
CyrusOne SAT5–SAT6 San Antonio Data Center Campus

Partially operational · San Antonio, Texas, United States

Same locality: San Antonio

Compare in a collection
Microsoft San Antonio Data Center Campus

Operating · San Antonio, Texas, United States

Same locality: San Antonio

Compare in a collection