Prometheus Hyperscale is planting a second flag in its home state, unveiling plans for a massive AI data center campus outside Casper that could eventually deliver up to 1.5 gigawatts of IT capacity. It’s a gas-powered build — yes, the fossil-fuel kind — but the company says the site will run “carbon negative” by pairing generation with carbon capture from two Wyoming players, Spiritus and Casper Carbon Capture.
About $500 million is slated to kick-start the project, with the first IT-ready power targeted for 2026.
“We’re excited to develop another project in Wyoming,” said founder and CEO Trenton Thornock. “The Casper project and this partnership with Spiritus and Casper Carbon Capture further enables Prometheus’ vision of developing the future of digital infrastructure sustainably.”
Here’s the pitch: Spiritus, via its Orchard Power brand, will supply firm electricity and use direct-air-capture to remove emissions associated with generation, while Casper Carbon Capture will pipe the CO₂ to sequestration wells in Natrona and Converse counties for permanent storage.
“AI companies can’t wait years for power,” said Spiritus CEO Charles Cadieu. “Orchard Power gives tenants reliable, affordable, carbon-negative electricity at hyperscale, when and where it’s needed.”
Casper Carbon Capture’s Jess Foshee cast it as a Wyoming showcase:
“We’re showing that Wyoming’s land, resources, and people can power the future while we keep our commitment to stewardship and community at the center.”
Prometheus — known as Wyoming Hyperscale Whitebox before a 2024 rebrand — has been busy pitching itself as an “in-harmony-with-nature” operator. Its flagship Evanston campus sits on family land and is aimed squarely at hyperscalers running AI workloads; the company has floated plans to blend small modular reactors, organic flow batteries, and, candidly, natural gas to keep the lights on. For Casper, Prometheus says it will finance high-density compute halls and lean on proprietary, non-consumptive aquifer cooling to squeeze more efficiency out of the megawatts.
The company is also looking beyond Wyoming. It’s teamed with Engie North America to colocate data centers alongside renewables and battery storage around Dallas — a nod to hyperscale customers that want both capacity and cleaner credentials.
If Prometheus and its partners deliver what they promise, Casper becomes a test case for whether carbon capture can square the circle for AI’s voracious power needs. Big claims, big numbers — and now a short runway to 2026 to prove it.
The original story by Matthew Gooding for Data Centre Dynamics.
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