Anthropic, the company behind the Claude models, has signed a 20-year lease with infrastructure operator TeraWulf for a purpose-built compute campus in Hawesville, Kentucky. The two firms announced the deal on 6 July 2026. The contract is expected to generate roughly $19 billion of contracted revenue for TeraWulf over the initial lease term and gives Anthropic long-term access to about 401 MW of compute capacity for training and serving AI models.
Key takeaways
- A 20-year lease between Anthropic and TeraWulf, announced on 6 July 2026
- Roughly $19 billion of contracted revenue over the initial lease term
- The Justified Data campus in Hawesville, Kentucky, targeting about 401 MW of critical IT load
- Initial capacity in the second half of 2027, with the full 401 MW by early 2028
- In parallel, TeraWulf is selling its 50.1% stake in the Abernathy joint venture to a Fluidstack-led investor group, recovering an investment of roughly $450 million
Deal terms
According to TeraWulf's statement, the Justified Data campus is being built in phases on the site of a former aluminum smelter in Hawesville. The operator bought the property in February 2026 for about $200 million, as Data Center Dynamics reports. Initial capacity is expected to come online in the second half of 2027, with the full 401 MW of critical IT load available by early 2028.
TeraWulf describes the lease itself as worth roughly $19 billion of contracted revenue over the initial term and supported by an investment-grade credit. That detail matters, because a long-term deal with a creditworthy tenant makes it easier for the operator to finance construction. Paul Prager, chairman and CEO of TeraWulf, tied the contract to a February pledge to secure a major customer by the end of the second quarter of 2026.
At the same time, TeraWulf is selling its entire 50.1% stake in the Abernathy Joint Venture to an investor group led by Fluidstack. The venture, formed in October 2025 and backed by Google, is developing a 168 MW campus in Abernathy, Texas. The transaction lets TeraWulf recover an investment of roughly $450 million at a premium and redirect the capital into wholly owned projects.
Context: the race for compute
The lease is one more piece of Anthropic's broad strategy of securing capacity from many suppliers at once. As Data Center Dynamics notes, the company has so far committed to renting more than 10 GW of servers from cloud providers. The loudest of those deals is an agreement with Google for access to TPU chips, valued at around $200 billion. Anthropic has also struck a partnership with Fluidstack worth about $50 billion, along with agreements with Amazon Web Services for 5 GW and with CoreWeave.
| Provider | Access model | Scale / value |
|---|---|---|
| TPU chip access | ~$200B | |
| Fluidstack | Partnership | ~$50B |
| TeraWulf | 20-year campus lease, 401 MW | ~$19B |
| xAI (Colossus) | Space rental | ~$1.25B per month |
| Amazon Web Services | Server capacity | 5 GW |
| CoreWeave | Server capacity | — |
Against that backdrop, the TeraWulf lease stands out in form. This is not a purchase of cloud capacity but a long-term lease of a physical campus that Anthropic will fill with its own hardware. The company took a similar approach with Elon Musk's xAI, where, per disclosures in SpaceX filings, it is set to pay roughly $1.25 billion a month to rent space in the Colossus data center. The TeraWulf contract shows that AI labs are diversifying not only their suppliers but also their access models — from cloud to leasing bare facilities.
The difference between TeraWulf and the classic hyperscalers is worth flagging. The firm began as a bitcoin miner and in recent years pivoted to building AI data centers, leaning on its edge in sourcing cheap power. That is the same logic driving the whole sector — the bottleneck is no longer the chips themselves but the availability of electricity and land with grid connections.
Why it matters
The deal shows that the most expensive resource in AI is no longer the GPUs but energy and shovel-ready land. 401 MW is comparable to the demand of a sizeable city, and locking it in for 20 years says more about physical limits than about the models themselves. For Anthropic, infrastructure diversification is an insurance policy — the company does not want to be a hostage to a single cloud provider, especially when some of them are simultaneously its investors and potential rivals. For TeraWulf, a firm with roots in crypto mining, a long-term contract with a creditworthy tenant changes its risk profile and opens the door to cheaper construction financing. More broadly, the transaction is further evidence that the AI infrastructure market is shifting from speculative announcements toward multi-year commitments measured in gigawatts and billions of dollars. That builds real supply of capacity, but it also freezes capital and energy for decades.
What's next
- Initial capacity at the Justified Data campus is expected to come online in the second half of 2027, with the full 401 MW by early 2028 — per TeraWulf's statement
- TeraWulf says it will redeploy capital recovered from the Abernathy sale into wholly owned infrastructure projects, including a second, gigawatt-scale campus in Kentucky
- The lease creates a "framework for future expansion", suggesting possible further phases of the Anthropic–TeraWulf partnership beyond the initial 401 MW
Sources
- TeraWulf Investor Relations — TeraWulf Announces Anthropic Lease at Justified Data Campus and Sale of Majority Interest in Abernathy Joint Venture to Fluidstack
- Data Center Dynamics — Anthropic signs $19bn, 20-year lease for Kentucky data center with TeraWulf
