{"id":"496783cf-1c91-4566-98ce-67d2b5403137","slug":"fluidstack-cameron-county-texas","name":"Fluidstack Cameron County AI Campus","aliases":["Fluidstack Rio Grande Valley campus","Fluidstack Cameron County","Fluidstack Harlingen / Valley International Airport campus","Fluidstack Rio Hondo campus","Fluidstack FM 509 FM 106","Fluidstack RGV AI campus"],"locationId":"d6dddc4b-f1b3-4341-a9cf-bb206b69e94b","lat":26.1291189,"lng":-97.4134281,"locationPrecision":"county","landStatus":"private","lifecycleState":"under_construction","powerSourceMix":"mixed","interconnectionQueueStatus":null,"interconnectionQueueId":null,"expectedEnergizationDate":null,"dedicatedSubstation":null,"gridOperator":"ERCOT","waterSourceNotes":"Closed-loop recirculating cooling; East Rio Hondo Water Supply Corporation (nongovernmental) named as cooling-water supplier; company says top-ups after initial fill are only for maintenance and repairs ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county)).","servingUtility":null,"acreage":null,"totalBuildingSqft":null,"streetAddress":null,"notes":"Fluidstack AI data center campus in unincorporated Cameron County, Texas, near Valley International Airport (Harlingen), east of FM 509 and west of FM 106. Company community post (Sep 21, 2026) says construction has begun on a $4B first phase planned to support up to 1.5 GW. Cameron County (Sep 10, 2026) issued a worksite permit for closed-loop-technology site work; the county states it is not providing a tax abatement, and Fluidstack says it requested none. Company pledges to pay energy, infrastructure, and water costs; cooling water from East Rio Hondo Water Supply Corporation via a closed-loop system; property-line sound limit of 60 dB claimed. Distinct from fluidstack-texas-anthropic-campus (city/MW undisclosed Anthropic custom-build stub).","keyFacts":[{"label":"Operator / developer","value":"Fluidstack ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county); [Cameron County](https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/))"},{"label":"Location","value":"Unincorporated Cameron County, Texas, near Valley International Airport / Harlingen; east of FM 509 and west of FM 106 ([Cameron County](https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/))"},{"label":"Lifecycle / timeline","value":"Under construction / site work; worksite permit issued Sep 10, 2026 (land clearing, grading, utilities, surface infrastructure); company says construction began on the $4B first phase; future permits required before building construction ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county); [Cameron County](https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/))"},{"label":"Announced capacity (first phase)","value":"Up to 1.5 GW planned for the $4B first phase ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county))"},{"label":"Stated investment (first phase)","value":"$4 billion first phase (company) ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county))"},{"label":"Cooling / water","value":"Closed-loop recirculating water system; East Rio Hondo Water Supply Corporation named as cooling-water supplier; company says the tank holds less water than an Olympic-sized pool ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county))"},{"label":"Grid / compliance","value":"ERCOT market; company says it will pay its own energy/infrastructure/water costs, develop on-site generation alongside purchased power, and participate in PUC/ERCOT audits covering safety, quality of life, and grid reliability; building to comply with Governor Abbott data-center directives and Cameron County Resolution No. 2026R04056 ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county); [Cameron County](https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/))"},{"label":"Tax treatment","value":"No county tax abatement; company says it requested none and will pay full local property taxes ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county); [Cameron County](https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/))"},{"label":"Jobs (company claim)","value":"More than 2,500 construction jobs and several hundred permanent positions expected (company) ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county))"},{"label":"Noise (company claim)","value":"Property-line sound limited to 60 dB during operations; berms and trees claimed to further reduce sound ([Fluidstack](https://fluidstack.io/community/building-compute-in-cameron-county))"},{"label":"Related campus","value":"Distinct from [FluidStack Texas Anthropic campus](/datacenters/fluidstack-texas-anthropic-campus) (separate Anthropic custom-build stub; city/MW undisclosed on that row)."}],"reviewStatus":"reviewed","sources":[{"url":"https://fluidstack.io/community/building-compute-in-cameron-county","title":"Construction begins on our 1.5GW, $4B first phase in Cameron County","sourceName":"Fluidstack"},{"url":"https://www.cameroncountytx.gov/worksite-permit-issued-for-fluidstack-data-center-project/","title":"Worksite Permit Issued for Fluidstack Data Center Project","sourceName":"Cameron County"}],"reviewNote":null,"createdAt":"2026-09-27T05:17:30.446Z","updatedAt":"2026-09-28T02:44:12.108Z","location":{"id":"d6dddc4b-f1b3-4341-a9cf-bb206b69e94b","name":"Cameron 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