The energy demands of artificial intelligence have reached a point where Anthropic - a company that has historically steered clear of owning physical infrastructure - is now committing $3.4 billion to purchase natural gas turbines.

According to a report from the Financial Times, the AI firm is acquiring Caterpillar generators that were originally ordered by energy equipment supplier OnePWR. The turbines are capable of generating up to 1.7 gigawatts of electricity, a substantial amount of generating capacity for a company that has long preferred to lease computing resources rather than own them outright.

Anthropic, which is preparing for a public offering later this year, has built its operational model around renting rather than buying. The company revealed in its S-1 filing in May that it is paying SpaceX subsidiary xAI $1.25 billion per month through May 2029 in exchange for access to xAI's computing infrastructure.

"We expect to enter into additional similar services contracts," Anthropic stated in the filing, signaling its intention to continue securing computing power through third-party arrangements.

A Tightening Market Forces a Change in Strategy

Despite that preference for leasing, the rapidly shifting dynamics of the energy and computing markets appear to have pushed Anthropic toward a more direct approach. The global backlog for natural gas turbines now extends well into the early 2030s, and the wait times to connect new facilities to the electrical grid are similarly lengthy. With demand for computing power continuing to accelerate, the window to secure reliable energy capacity has narrowed considerably.

The circumstances surrounding the deal add another layer of complexity. OnePWR had placed the original order for the Caterpillar turbines several years ago but was ultimately unable to secure the financing needed to complete the purchase. Anthropic had initially planned to buy the equipment through OnePWR, but the transaction was restructured so that Anthropic purchased the turbines directly from Caterpillar, bypassing the intermediary entirely.

The reasons why OnePWR failed to obtain financing - even with Anthropic apparently lined up as a customer - have not been publicly disclosed. Regardless of the specifics, Anthropic's decision to go directly to the manufacturer suggests the company was determined to lock in the generating capacity for its own use, rather than risk losing it to a rival in the AI sector.

AI Industry's Growing Appetite for Natural Gas

Anthropic is far from alone in turning to fossil fuel-powered generation to meet its energy needs. Across the technology sector, major players have been steadily increasing their investments in natural gas infrastructure over the past several years.

• Google has announced plans to develop on-site natural gas power plants to support its data centers.
• Amazon has made similar commitments as part of its cloud and AI infrastructure expansion.
• Microsoft is pursuing large-scale gas-powered generation to keep pace with surging demand from its AI products.
• Meta has also outlined plans for substantial natural gas capacity at its data center campuses.

The common thread across these announcements is the intent to generate electricity on-site rather than drawing power from the public grid, which is already strained in many regions and may not be able to accommodate the scale of energy consumption that AI workloads require.

Ripple Effects on Energy Markets and the Environment

The technology industry's sharp pivot toward natural gas has had measurable effects on the broader energy landscape. The surge in demand has breathed new life into hydraulic fracturing - commonly known as fracking - the extraction process used to pull natural gas from underground rock formations. The method had faced increasing scrutiny in recent years, but the AI boom has created a new wave of demand that has reinvigorated the sector.

If current build-out projections hold, the scale of consumption could be staggering. Analysts project that U.S. data centers alone could consume more natural gas by 2035 than the entire nations of Germany and Japan combined. That level of dependence on a single fuel source also introduces significant financial risk. At least one industry analyst has warned that natural gas prices in certain markets could increase by more than three times their current levels before the end of the decade.

For Anthropic, that scenario could prove costly. A company that only recently committed $3.4 billion to gas-powered generation could find itself facing dramatically higher operating costs if energy prices rise as sharply as some forecasts suggest. What looks today like a strategic move to secure reliable power could, under those conditions, become a significant financial liability.