Estimated: Sweetwater 1 campus outside Sweetwater, Texas, United States (approximate: Sweetwater town centroid; KTXS and Baxtel place the campuses in Fisher County while Cleanview lists Nolan County)IREN
CONFIRMEDDate confidence: CONFIRMEDStated as firmHow firmly the source words the date: confirmed, scheduled, estimated, delayed or unverified.Show all CONFIRMED pins86% CONFIDENCEOverall confidence: 86%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better190 days ago
IREN's 1 May 2026 release: "today announced the successful energization of its 1.4GW Sweetwater 1 data center site in Texas", meaning the site substation was connected to the ERCOT grid.[1]IREN energized the high-voltage substation of its 1,400 MW Sweetwater 1 site, the first part of a 2,000 MW Sweetwater hub in West Texas, on 1 May 2026, with data-center construction continuing through 2027; no investment figure has been published.