Anthropic isn't waiting for the power grid anymore. It's buying the power plant.
The Claude developer has agreed to pay about $3.4 billion for 1.7 gigawatts of heavy-duty gas-fired generators to run its data centers, according to the Financial Times, which reported the deal on Sunday. The FT called it the largest known single purchase of power-generation equipment by an AI lab — and the more telling detail is what Anthropic actually bought: not electricity, but a place in line.
The generators are Caterpillar units that San Antonio-based OnePWR Solutions ordered about two years ago and then couldn't afford to complete. Anthropic took over the orders in late September, along with the engineering and construction work needed to install them. It did not buy OnePWR itself, and none of OnePWR's employees moved over. Anthropic had originally planned to simply buy power from OnePWR as a customer; instead it bought the equipment. One corroborating paper trail exists: investment bank Piper Sandler lists a $3.4 billion sale of OnePWR's power generation platform to "a frontier AI lab," dated September 2026. Neither Anthropic nor OnePWR commented, and Reuters said it could not immediately verify the report. No sites or delivery schedule have been disclosed.
The logic is in Anthropic's own IPO paperwork. Its amended prospectus, filed November 2, warns that access to electricity limits data center expansion in several markets and that new power sources and grid connections can take years to develop — and says some planned facilities will rely on dedicated on-site natural gas generation. The filing lists about $895 billion in aggregate commitments, nearly all of it for compute and infrastructure. In February, Anthropic pledged to pay for all of the grid upgrades its data centers require and to bring new generation online to match their consumption. Owning the generators is the blunt-force version of that promise.
Anthropic is not the first lab to reach this conclusion. xAI bought $2 billion of mobile gas turbines earlier this year, and Mississippi has permitted 41 turbines at the site serving its Colossus expansion — where a federal judge has let the NAACP's pollution case over the turbines proceed. The equipment makers are feasting either way: Caterpillar's power generation sales rose 30 percent to $3.42 billion in the third quarter, and its total backlog is about $78 billion.
The timing is the other half of the story. Anthropic is expected to open its IPO roadshow this week, asking public investors to fund a buildout whose power bill now includes its own gas plants — days after Ohio voters banned new data centers and Google answered the backlash with a $17 billion Wyoming site. The question for the roadshow isn't whether Claude needs the power. It's whether voters, regulators, and the grid will let Anthropic build it.
— via MLQ.ai