Anthropic has agreed to pay about $3.4 billion for a large block of gas-fired power generators for its data centers, the Financial Times reported on Sunday, as summarized by Reuters via CNBC. Anthropic had not confirmed the deal as of November 9, 2026. Reuters said it could not immediately verify the report, and Anthropic and OnePWR did not respond to requests for comment.
The story is about electricity, not chips. AI models run on large data centers, and those data centers need steady power. This deal, if the report is accurate, puts Anthropic directly into buying the equipment that makes that power.
What did Anthropic reportedly buy?
According to the FT report, as carried by CNBC, Anthropic bought commitments for 1.7 gigawatts of heavy-duty generators in late September from OnePWR Solutions, a San Antonio, Texas-based equipment supplier.
Anthropic did not acquire OnePWR itself, and none of the supplier's employees moved to Anthropic, the report said, citing a person familiar with the matter. The report said the deal did include the engineering and construction capabilities needed to install the generators.
Investing.com, citing the FT, adds more detail on how the deal came about:
- OnePWR had ordered the generators from Caterpillar about two years ago but needed financing to complete the transaction, the FT reported.
- Anthropic had first planned to become a OnePWR customer, then chose to take over the existing equipment orders instead, the report said.
- The FT described it as the largest known single purchase of power-generation equipment by an AI laboratory, according to a Bloomberg summary carried by Moneycontrol.
What does the Piper Sandler listing show?
Investment bank Piper Sandler has a deal listing for "OnePWR Solutions (CK Holdings Group, LLC)", dated 09/26 (September 2026) and valued at $3.4 billion. It says: "Piper Sandler served as exclusive financial advisor for OnePwr on its sale of its power generation platform to a frontier AI lab." The listing does not name the buyer. Its price and timing match the FT's account, but no source here confirms that the lab is Anthropic.
A Piper Sandler LinkedIn post, which also does not name the buyer, gives slightly more exact figures. It says One Power Holdings, LLC ("OnePWR") announced it had completed a sale of its power generation platform to a frontier AI lab for approximately $3.39 billion in cash. Under the deal, the lab secures access to approximately 1.74 GW of contracted power generation equipment, plus the development, engineering, procurement and construction capabilities to deploy it. The post also says: "A meaningful portion of capacity is available for near-term deployment, with additional capacity expected to become available over the next two years."
What does Anthropic's IPO filing say about gas power?
Anthropic's amended S-1, its registration statement for an initial public offering, was filed with the SEC on November 2, 2026. The filing does not mention OnePWR. It does describe how Anthropic depends on on-site gas power and on hard-to-get equipment.
On gas, the filing says: "For example, certain of our planned data center facilities rely on dedicated on-site natural gas-fired generation, which exposes us to fuel price volatility and supply disruptions that are outside of our control and for which we bear the cost on a pass-through basis."
On equipment, it says: "In addition, certain equipment, such as high-voltage transformers, switchgear, turbines, generators, substations, and transmission components, has been subject to extended delivery timelines, price increases, tariffs and national security requirements, and allocation constraints as demand from data center operators and other large electricity consumers has grown."
The filing also lists the risks that follow from relying on gas: "We may be unable to secure firm gas supply and transportation during the development of a facility, causing a planned site to be delayed or abandoned; we may face fuel supply or delivery disruptions once a facility is operating; and because our arrangements generally provide for fuel and related costs to be borne by us on a pass-through basis without cost caps, we remain exposed to increases in the cost of natural gas and its transportation."
How big is Anthropic's infrastructure spending?
The same S-1 amendment says that, as of and after September 30, 2026, Anthropic has entered into purchase commitments and lease agreements with an aggregate committed spend of approximately $895.4 billion, substantially all of which is related to compute and infrastructure.
Earlier, Reuters reported in September that Anthropic expects to spend more than $500 billion over the next 10 years building AI infrastructure.
For background on who holds stakes in the company, see our explainer Who Owns Anthropic? Amazon, Google, Founders and the Trust. We also covered an earlier financing story for one of its sites, Nvidia in Talks to Back Nscale Debt for Anthropic Site, and a separate power-cost story from a rival lab, OpenAI Pledges No NDAs, Full Power Costs at New Campuses.
What is still unknown?
Several basic details are not public in these sources:
- Which Anthropic data center sites will use the generators.
- The delivery schedule for the equipment, beyond Piper Sandler's note that part of the capacity is available for near-term deployment.
- How the price splits between the generators and the installation work.
- Official confirmation from Anthropic or OnePWR. Neither company commented, and the Piper Sandler materials name only "a frontier AI lab".
Sources
- CNBC/Reuters: Anthropic secures $3.4 billion generator deal for AI data centers, FT reports
- Investing.com: Anthropic reportedly strikes $3.4 billion deal for gas-fired power at data centres
- Bloomberg via Moneycontrol: Anthropic buys power for AI data centers in $3.4 billion deal: Report
- Piper Sandler: OnePWR Solutions transaction listing
- Piper Sandler on LinkedIn: OnePWR completes sale to frontier AI lab
- Anthropic, PBC: Amendment No. 1 to Form S-1 (SEC, Nov 2, 2026)
