TeraWulf has secured AI lab Anthropic as a long-term tenant at its Justified Data campus in Hawesville, Kentucky.The lease will run for 20 years, during which time an estimated $19 billion of revenue will be generated for TeraWulf.Separately, TeraWulf has also divested its ownership interest in a joint venture with Fluidstack.TeraWulf's Justified Data campus is being developed in phases and will have up to 401MW of IT capacity once completed. Initial capacity is set to come online in the second half of 2027, with the campus fully operational by early 2028.The property was formerly used as an aluminum processing site and was sold to TeraWulf in February for $200 million. A couple of months later, TeraWulf purchased a second site in Kentucky for a gigawatt-scale campus.Paul Prager, chairman and CEO of TeraWulf, said: “When we announced the Justified Data campus acquisition in February, we told investors that we expected to secure a major customer commitment by around the end of the second quarter of 2026. The timing of today's announcement reflects the completion of final documentation and customary transaction processes, and we are proud to announce this landmark partnership with Anthropic.“The Anthropic lease validates our strategy and establishes a long-duration revenue stream with one of the world’s leading AI companies. The lease provides approximately $19 billion of contracted lease revenue over its initial term, creates a framework for future expansion, and demonstrates the value of our ability to source power, develop infrastructure, and secure long-term customer commitments.”In June 2026, reports emerged that Anthropic had signed more than a dozen letters of intent with data center developers.To date, Anthropic has typically turned to cloud providers for its compute capacity - having committed to renting more than 10GW of servers from cloud providers thus far, including a $200 billion agreement signed with Google.Anthropic has previously signed large cloud capacity deals with Akamai, Amazon Web Services – including a massive cluster of the cloud firm’s custom Trainium hardware, CoreWeave, and a $50bn partnership with AI cloud firm Fluidstack.Beyond the cloud computing agreements, Anthropic has signed a data center lease with SpaceX/xAI, in which it will lease the entire Colossus 1 data center from Elon Musk's company, in a deal worth $1.25 billion a month. It will also lease space in the Colossus II data center.In addition to revealing the new lease agreement, TeraWulf has said it is selling its entire 50.1 percent ownership of the "Abernathy Joint Venture" (JV).The JV was formed in October 2025 between TeraWulf and Fluidstack, backed by Google, to establish a 168MW data center at a 120-acre campus in Abernathy, Texas.TeraWulf has now sold its share to an investor group led by Fluidstack. According to the company, this has enabled TeraWulf to "realize the value" created by its $450m investment in the project and redeploy the capital elsewhere.Prager added: "The sale of our ownership interest in Abernathy to a group led by Fluidstack crystallizes the value created through that investment and generates significant capital for redeployment into infrastructure platforms where we maintain direct ownership, customer relationships, and operational control.”“Together, these transactions position TeraWulf for its next phase of growth. Our strategy is centered on owning and operating critical infrastructure assets, maintaining direct relationships with our customers, and controlling the long-term evolution of our campuses. We believe this model provides the greatest opportunity to generate durable cash flows and attractive long-term returns for shareholders.”Fluidstack is a major customer of TeraWulf's New York campus outside Buffalo, with the AI cloud firm's capacity going to Anthropic. Google is backstopping Fluidstack's deals with TeraWulf.