Anthropic has signed a $3.4 billion agreement to take over orders for 1.7 gigawatts of large gas generators from Texas-based power supplier OnePWR Solutions, according to a person familiar with the deal, giving the company behind the Claude chatbot a substantial self-supplied energy reserve for its expanding AI data center footprint. The Financial Times first reported the agreement, and CNBC, Bloomberg, Tom's Hardware and Data Center Dynamics all followed up over the weekend and on Monday.
The deal is the clearest sign yet that access to electricity, rather than chips, has become the binding constraint on AI expansion. While Nvidia and TSMC race to manufacture faster accelerators, the companies training frontier models are discovering that securing power for a data center can take years longer than ordering the silicon that fills it. For more context on this story, see our ongoing artificial intelligence updates.
How the Deal Came Together
The generators at the center of the agreement were originally ordered by OnePWR from Caterpillar roughly two years ago, according to the reporting. OnePWR, which is based in San Antonio, needed funding to complete its purchase, and Anthropic stepped in. The AI company had initially planned to simply buy electricity from the supplier, but instead took over the generator orders and the installation work outright.
Notably, Anthropic did not acquire OnePWR, and no OnePWR employees are moving to Anthropic. The planned location for the generators has not been disclosed, and both companies declined to comment when asked about the agreement.
Why Buy Generators Instead of Power?
The answer, according to industry analysts cited across the coverage, comes down to time. Utility-scale grid connections for large data centers are routinely delayed by interconnection queues, transformer shortages and local opposition. Tom's Hardware characterized the transaction as Anthropic "skipping a six-year waitlist" by taking over orders that already sit in Caterpillar's production pipeline. Owning the hardware outright also gives Anthropic control over where and when the capacity is deployed, rather than depending on a supplier's schedule.
Part of a Bigger Power Playbook
The generator deal lands as Anthropic prepares for one of the largest IPOs in history. The company's amended IPO filing, published last week, showed close to $900 billion in customer commitments — almost all of them tied to computing power and infrastructure, as Dataconomy noted in its coverage of the filing.
Energy has been a recurring theme in Anthropic's buildout. Earlier this year the company said it would pay 100% of the grid infrastructure costs associated with its data centers, and would fund new power generation rather than simply drawing down existing supply. It has also built an in-house chip design team to develop custom silicon for Claude inference, and expanded its Google Cloud deal for TPU capacity, with the company saying it expects to have access to more than a gigawatt of processing power in 2026.
The 1.7 gigawatts of generator capacity secured through OnePWR — enough to power a mid-sized city — effectively adds a dispatchable, on-site layer on top of those grid and cloud commitments.
A Sellers' Market for Turbines
The purchase also reflects how tight the equipment market has become. Large generators and gas turbines are now booked years in advance as hyperscalers, neocloud operators and frontier labs place competing orders for the same limited manufacturing capacity. By taking over orders that OnePWR had placed with Caterpillar roughly two years ago, Anthropic effectively bought time as much as hardware — capacity that would otherwise have required a multi-year wait to procure new.
AI's Growing Gas Problem
Anthropic is not the only AI company turning to fossil fuels to accelerate deployment. Elon Musk's xAI has faced a lawsuit and sustained local criticism over the gas turbines powering its Memphis data center. In September, Crusoe abandoned a $1.25 billion plan to buy 29 gas turbines from Boom Supersonic, ending the launch partnership for Boom's push into stationary power generation and underscoring how quickly AI power plans can unravel.
Communities are pushing back, too. On Monday, an Ohio town voted to ban large data centers outright after a $900 million proposal, and across the US, AI data-center forecasts have been blamed for adding billions of dollars to power auction costs. Against that backdrop, owning generators behind the fence line looks less like an extravagance and more like a way to sidestep a permitting and queueing system that is failing to keep pace with demand.
Power as the New Moat
For years, the AI industry's competitive discussions revolved around model architecture, talent and compute budgets. The Anthropic-OnePWR agreement underlines a shift: the moat that matters in 2026 is increasingly measured in megawatts. A frontier lab that controls its own generation can train and serve models on its own schedule, while rivals wait in utility queues.
Whether gas-fired self-supply becomes a durable advantage or a stranded cost depends on how quickly cleaner alternatives — nuclear contracts, grid upgrades, storage — come online. For now, the company preparing for a $1.5 trillion IPO has decided that waiting is the more expensive option.
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