Longhorn Power Plant
Permit papers describe power generation equipment for on-site use in data center buildings. It would emit 8 million tons of greenhouse gases a year. The source does not name the operator or give a size.
Investigations finished, new behind-the-meter sightings, and whether a signed power commitment shows up in the public record. Latest first. Older briefs stay in the archive.
What our team found this week on behind-the-meter power for data centers: the announced size, the date promised, and whether a signed power commitment shows up in the public record.
Permit papers describe power generation equipment for on-site use in data center buildings. It would emit 8 million tons of greenhouse gases a year. The source does not name the operator or give a size.
Ground broken 27 July 2026. Ten Crusoe modular data centers: 8 MW at first, 25 MW in phase 2, up to 500 MW long term. Batteries and on-site solar. Grid connection not confirmed. Operation targeted for Q1 2027.
Agreements signed 7 August 2026 to design, supply and commission batteries for data center power projects. Expected revenue is above $500M from late 2026 through 2027. Customer not named. No MW stated.
In July 2026 the capacity agreement became a final operating agreement for a turnkey plant of about 660 MW, with batteries. Term of up to 18 years. Deployments start Q1 2027 and scale through 2028.
A planned 2 GW campus. The first phase is more than 300 MW of generation, targeted for Q4 2027. It starts behind the meter, likely inside ERCOT Batch Zero, with a possible grid connection of undetermined size in 2028. One source: SemiAnalysis.
The two Energy Vault items are separate deals.
| Site | Type | MW | Federal list |
|---|---|---|---|
| Meta / Will-Power — New Albany, OH | Gas turbines + engines | 200 MW | Not in federal list |
| Scale Datacenters — Oklahoma City, OK | Generators | 100 MW | Not in federal list |
| Aggreko — South Bend, IN | Temporary generators | 60 MW | Not in federal list |
| Stabilis Solutions — unnamed U.S. data center | LNG supply | — | Near match in federal list |
| Big Watt Digital / PowerHouse — Taylor, TX | On-site power plant | — | Not yet checked |
Aggreko and Stabilis name no customer. Taylor’s 664-acre campus won a unanimous city vote on 8 Oct; the agreement does not state the plant’s size or fuel.
Update on Homer City: on 6 Oct AWS filed a site plan for 36 data center buildings, powered by the 4.5 GW gas plant being built on site. Construction would start December 2026.
The open question is still whether the power is signed, built and on time. At Homer City, AWS has now filed a site plan, but the 4.5 GW plant is still being built. Among this week’s finished reviews, Solaris has moved to a final operating agreement and Liberty’s first phase is not targeted until Q4 2027. We keep watching for the filings that settle the rest.
Sources: Inside Climate News, Business Wire, SemiAnalysis, KOSU, KUT, Texas Scorecard, DatacenterDynamics, Power Engineering, Aggreko, SEC filings (Energy Vault, Solaris, Stabilis). Public record only. Power Intel tracks 117 power sightings; 76 are fully investigated.
What our team found this week on behind-the-meter power for data centers: the announced size, the date promised, and whether a signed power commitment shows up in the public record.
Up to 4,500 MW of gas power on the site of a former coal plant. First power is targeted for 2027. Press reports disagree on how much of the 4.5 GW goes to data centers. No signed power commitment found in the public record.
Campus ceiling of 1,800 MW. The first 500 MW is reported as approved by ERCOT, with the first building energized in May 2026. Tenants are not named. No signed power commitment found in the public record.
A 200 MW facility run straight off the Susquehanna nuclear station at a fixed price. Talen now owns it outright after buying it from TeraWulf. Some industry lists still say 300 MW; current sources say 200.
Sits at the same Susquehanna station. Amazon first sought direct power; after federal regulators rejected that setup, the deal was reported as restructured to grid-supplied power. So this is no longer a pure behind-the-meter project.
Nautilus and Cumulus share one power plant. We count its output once, not twice.
| Site | Type | MW | Federal list |
|---|---|---|---|
| Meta Prometheus — New Albany, OH | Two gas plants | 573 MW | Not in federal list |
| One Nuclear — Louisiana, Baton Rouge–New Orleans | Gas plant + batteries | 2,880 MW | Near match in federal list |
| Enerflex — unnamed North American data center | Gas plant | ~450 MW | Near match in federal list |
| San Antonio area, TX — data center | Gas plant | 246 MW | Not in federal list |
| Kodiak Gas Services — West Texas | Gas engines | 76 MW | Not in federal list |
| Amazon — Pecos (Reeves County), TX | Gas-powered campus | — | Not in federal list |
| Fleet Power — Nevada data centers | Two methane plants | — | Not in federal list |
| Fluence — $300M battery order, unnamed customer | Batteries | — | Near match in federal list |
| Woodway Energy — 22-mile pipeline, unnamed customer | Gas pipeline | — | Near match in federal list |
Several are named only by their equipment supplier, so the data center behind them is still unidentified.
The open question on nearly every project is the same: has anyone signed for the power? Homer City and Grand Prairie show no signed commitment in the public record, and Cumulus changed shape. We keep watching for the filings that settle it.
Sources: DatacenterDynamics, Latitude Media, Industrial Info, SEC filings (Fluence, Enerflex). Public record only. Power Intel tracks 113 power sightings; 70 are fully investigated.