Anthropic Spent $3.4 Billion on Someone Else's Gas Generator Orders to Power Its Own Data Centers

Anthropic is no longer content to rent its electricity. The Claude maker has agreed to pay about $3.4 billion for 1.7 gigawatts of gas-fired generators to run its data centers, the Financial Times reported on Sunday. The paper called it the largest known single purchase of power equipment by an AI lab.

The machines were not Anthropic's to begin with. OnePWR Solutions, a power supplier in San Antonio, Texas, had ordered the Caterpillar generators about two years ago but needed financing to complete the purchase, according to the FT's account. Anthropic first planned to buy electricity from OnePWR. In late September it took over the orders instead, along with the engineering and construction work needed to install them. It did not buy OnePWR, and none of the supplier's staff moved over.

Neither company has commented. A deal list from Piper Sandler, OnePWR's financial adviser, shows a $3.4 billion sale of OnePWR's power generation platform to an unnamed AI lab in September. Where the generators will be installed is not known.

Why an AI lab is buying engines

Power equipment has become one of the tightest bottlenecks in the AI buildout, with manufacturing lead times stretching years ahead. A company that needs power on a fixed date has little choice but to grab equipment already sitting in a factory queue. Taking over someone else's orders is a way to skip that line.

The scale of Anthropic's plans explains the urgency. Its IPO filing listed close to $900 billion in computing commitments, a bill several times larger than the cash it holds. Reuters reported in September that the company expects to spend more than $500 billion over the next decade on AI infrastructure.

Owning the power means owning the politics

Generators on site let a data center stop waiting for the grid, but they also put an AI company's name on new fossil fuel capacity. Anthropic pledged in February to pay for the grid upgrades its data centers need and to cover any rise in household electricity prices they cause.

That promise matters more after last week. Voters turned against data centers in local ballot measures across the country, and OpenAI responded by dropping its data center NDAs and promising to cover its full power costs. Anthropic has not said where its 1.7 gigawatts will run, or which community will live next to them.

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