Anthropic Agrees $3.4B Deal for Gas-Fired Generators to Power Its AI Data Centers

Anthropic has agreed to pay $3.4 billion for gas-fired generators to power its data centers, the Financial Times reported, calling it the largest known single purchase of power-generation equipment by an AI lab. The deal covers roughly 1.7 GW of capacity and was struck with OnePWR Solutions, a San Antonio power supplier.

According to the report, which cited a person familiar with the matter, the agreement was signed in late September. Anthropic took over OnePWR's existing orders for Caterpillar generators along with the installation work, rather than ordering new equipment from scratch. Neither company commented, and the sites the generators will serve have not been disclosed.

The deal shows where the AI build-out is now constrained. Generation equipment has become hard to source, and buying an existing order book lets Anthropic skip a queue that grid connections and new turbine orders cannot match. It also extends the lab's spending beyond chips and cloud contracts into the physical energy supply behind them.

What to watch: whether other AI labs follow with their own generation purchases, what it means for demand at equipment makers such as CAT, and how regulators and local communities respond to large gas-fired fleets serving data centers.