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TL;DR
SpaceX says it is advancing two AI computing projects: a more than $24 billion site near Brownsville, Texas, and a roughly $50 billion campus in Cochise County, Arizona. The Texas facility is planned to generate its own electricity, while Arizona’s would draw up to 6 gigawatts from the grid and use dry cooling. Local approvals are pending, and important details—including Texas’s computing-facility water use—remain unknown.
SpaceX said November 12 it is advancing two large AI computing projects: a facility near the Port of Brownsville in Texas and a campus in Cochise County, Arizona. The company puts the combined planned investment at more than $74 billion, but the projects would rely on different power arrangements and still require local action.
In Texas, SpaceX says it plans to invest more than $24 billion in computing infrastructure on roughly 444 acres near the Port of Brownsville. A City of Starbase notice describes the proposal as a gas-fired power plant and supercomputer facility. SpaceX says the site will generate its own electricity rather than draw from the public grid; the city notice does not give the plant’s generating capacity.
Local outlet The 956 Report, citing an air registration SpaceX filed with the Texas Commission on Environmental Quality, reported plans for a temporary setup of 35 natural-gas turbines totaling about 748 megawatts, followed by eight larger turbines totaling about 708 megawatts. Those details are attributed to the outlet’s account of the filing, not to the city notice. SpaceX says the project has created more than 3,000 construction jobs so far and is expected to have more than 500 permanent jobs when operating.
Arizona’s proposal is a roughly $50 billion campus on about 747 acres near Cochise. The county application, filed by Tombstone Resources L.L.C., describes up to nine computing buildings and a phased build-out. It estimates about 1,500 megawatts for the first phase and approximately 6 gigawatts at full build-out, with a 24-gigawatt-hour battery system. The application identifies SpaceX’s involvement indirectly; SpaceX’s project page and Tombstone’s town-hall statement connect the company to the project.
SpaceX’s AI campuses and local resources
Two proposed campuses would bring different power demands to Texas and Arizona. Local approvals are pending, and key water details remain unknown.
Two power plans
The projects would rely on different local infrastructure.
- Planned on-site gas-fired power
- City notice does not state generating capacity
- Computing facility water use remains unknown
- Power supplied through local cooperatives
- Up to 6 gigawatts at full build-out
- Dry cooling; no industrial groundwater planned
Water disclosures differ
Arizona’s application estimates annual use; Texas’s facility-specific use has not been disclosed.
What local approvals mean
The scheduled decisions are separate steps, not final approval of every project detail.
Cochise County’s Planning and Zoning Commission is scheduled to hear the proposal on December 9, 2026.
The City Commission is scheduled to consider a property-tax abatement for the Texas project.
Power arrangements, project conditions, timelines, and water disclosures still need clarity.
Local grids face different demands
The plans present two distinct local infrastructure questions. In Texas, the proposed on-site gas generation could reduce reliance on the public electricity grid, but it would also bring a large generating facility and associated emissions into the area. The city notice confirms a gas-fired plant but does not specify its capacity; the turbine figures reported by The 956 Report come from its review of an air filing.
In Arizona, the campus would instead depend on electricity delivered through the Sulphur Springs Valley Electric Cooperative and the Arizona Electric Power Cooperative to a utility-owned substation. A full build-out of about 6 gigawatts would make the availability and delivery of power a central local issue. SpaceX has also said the project could lower bills for cooperative members, but that outcome depends on an electricity arrangement whose regulatory status is not settled in the material available.
Water plans differ in what is disclosed. SpaceX says it has committed $220 million to Brownsville and Cameron County water and wastewater infrastructure, including $40 million it says it has already provided. The company says those projects would add about 20 million gallons a day from sources independent of the Rio Grande. That regional infrastructure commitment does not establish how much water the Texas computing facility itself would use.
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From orbital computing to local sites
SpaceX’s current proposals follow its February 2 announcement that it had acquired xAI. At the time, the company argued that meeting AI’s electricity demand with terrestrial infrastructure could impose hardship on communities and the environment, and promoted data centers in space as an answer. The two new proposals are ground-based facilities, though SpaceX says the Texas site would also help develop and test technologies for future space-based computing.
The Arizona application says the campus would use dry cooling without cooling towers and would not use industrial groundwater. It estimates annual water use of about 7 to 10 acre-feet at full build-out, mostly for staff. The application compares that estimate with 400 to 600 acre-feet a year for a center-pivot field on a 160-acre quarter section. These figures are estimates in the application, not measured operating data.
SpaceX’s announcement says the two projects represent more than $74 billion in planned American investment. Reuters reported that SpaceX’s AI segment generated more than half of the company’s revenue in the third quarter. That company-level revenue figure helps explain the significance of the investment plans, but it does not establish how quickly either campus will be built or what local economic effects will follow.
“Together, they represent more than $74 billion in planned American investment.”
— SpaceX
Capacity, water and approvals
Several material details remain unresolved. The available Texas city notice does not state the power plant’s capacity, and SpaceX has not specified how much water the computing facility itself would consume. The proposed size of any Texas tax break is also not provided in the source material.
In Arizona, the county application estimates water use and describes the proposed power connection, but it does not establish that the full electricity supply is approved. Whether the utility regulator will approve the arrangement behind SpaceX’s promised bill reductions remains unclear. The county documents identify Tombstone Resources L.L.C. as the applicant; the connection to SpaceX comes from the company’s project page and Tombstone’s public statement.
Both projects remain subject to local processes. Planned investment, construction jobs, future staffing, water use and electricity demand are estimates or company statements, not confirmed operating results. The source material does not establish final construction schedules or whether either project will be built at its proposed full scale.
December decisions in both locations
On December 9, 2026, the Cochise County Planning and Zoning Commission is scheduled to hold a hearing on the Arizona proposal. In Starbase, the City Commission is scheduled to consider a property-tax abatement for the Texas project. The hearing and tax-abatement consideration are separate local steps, and neither should be treated as final approval of every aspect of the projects.
Further filings and decisions should clarify the projects’ conditions, timelines and infrastructure arrangements. Readers will need to watch for more specific Texas power and water disclosures, the result of the Arizona land-use process, and whether the electricity arrangement and proposed bill effects receive the required approvals.
Key Questions
What has SpaceX announced?
SpaceX says it is advancing two AI computing projects: a facility near Brownsville, Texas, and a campus in Cochise County, Arizona. It describes their combined planned investment as more than $74 billion.
How would the two sites get electricity?
SpaceX says the Texas facility would generate its own electricity with an on-site gas-fired plant. The Arizona campus is planned to receive power through local cooperatives and a utility-owned substation, with about 6 gigawatts of demand at full build-out estimated in its application.
How much water would the campuses use?
The Arizona application estimates about 7 to 10 acre-feet per year at full build-out, mostly for staff, and says the campus would use dry cooling. SpaceX has not disclosed the Texas computing facility’s own water use. Its separate water-infrastructure commitment for Brownsville and Cameron County does not answer that question.
What approvals are coming up?
Cochise County’s Planning and Zoning Commission is scheduled to hear the Arizona proposal on December 9, 2026. The Starbase City Commission is scheduled that day to consider a property-tax abatement for the Texas project.
Source: ThorstenMeyerAI.com
