Anthropic commits $3.4B to gas-fired generators for data centers before IPO

The Financial Times reported on November 8 that Anthropic agreed in late September to pay about $3.4 billion for commitments covering 1.7 gigawatts of heavy-duty gas-fired generators from OnePWR Solutions, a San Antonio, Texas supplier. OnePWR had ordered the machines from Caterpillar about two years earlier but could not secure financing to complete the purchase. Anthropic originally planned to buy electricity from OnePWR as a customer, then took over the equipment orders along with the engineering and construction capability needed to install them. Anthropic did not acquire OnePWR, and none of its employees moved across.
Piper Sandler, OnePWR's exclusive financial adviser, lists a September sale of the company's power generation platform to an unnamed frontier AI lab for $3.4 billion. Reuters could not independently verify the FT account, and neither company has commented. Fortune, citing the FT, called it the largest direct investment in power generation equipment by an AI company. Sites, delivery dates and the split between hardware and installation remain undisclosed. The generators are expected to become available within two years.
Anthropic's amended S-1, filed November 2, says some planned data centers rely on on-site gas generation, which exposes it to fuel price and supply risk. A further amendment dated November 10 puts aggregate committed spend at about $900.9 billion. The company is reported to be targeting a valuation near $1.3 trillion.
Why it matters
For founders, power is becoming a queue problem as well as a chip problem. Anthropic effectively paid to inherit a place in a manufacturing line where new turbine and generator orders now face long waits. Teams that rely on a single cloud provider should ask whether that provider holds long-lead power commitments, since the S-1 warns that partners who cannot raise financing could delay, reprice or fail to deliver capacity.
For investors and sellers, the OnePWR case shows that equipment orders can keep value even when the developer's financing fails, because a better-capitalized buyer can take them over. Large commitment totals also need careful reading. The $900.9 billion figure is spread over roughly two decades, so it is a ceiling on obligations rather than a bill due this year. Owners of on-site plants also absorb fuel price swings that a power purchase contract would otherwise shift to the seller.
Key points
- 1Anthropic agreed in late September to pay about $3.4 billion for commitments covering 1.7 gigawatts of heavy-duty gas generators.
- 2The equipment came from Caterpillar orders that seller OnePWR Solutions placed about two years earlier but could not finance.
- 3The package includes engineering and construction capability, and Anthropic did not acquire OnePWR or its employees.
- 4Piper Sandler lists a $3.4 billion September sale of OnePWR's power generation platform to an unnamed frontier AI lab.
- 5