TeraWulf's $19B Anthropic Lease Turns A Bitcoin Miner Into An AI Landlord
TeraWulf signed a 20-year lease with Anthropic for its Justified Data campus in Hawesville, Kentucky, a deal expected to generate approximately $19 billion in contracted revenue over the initial term. The announcement sent TeraWulf shares up more than 17% on the day — a striking outcome for a company that started life as a Bitcoin miner.
The scale of the campus. Justified Data is expected to support roughly 401 megawatts of critical IT load once fully built. Initial capacity comes online in the second half of 2027, with the site reaching full capacity by early 2028. That timeline matters: this is a multi-year commitment, not a near-term revenue bump, and the $19 billion figure averages out to roughly $950 million a year across the lease term, with actual cash flows depending on phased delivery and escalation terms.
The other half of the announcement. TeraWulf simultaneously agreed to sell its 50.1% stake in the Abernathy joint venture — a Fluidstack-backed, 168 MW data center project in Texas — to an investor group led by Fluidstack. The sale monetizes TeraWulf’s roughly $450 million investment in the project at a premium, and the company said it plans to redeploy that capital into wholly owned infrastructure where it retains direct operational control, rather than joint-venture structures.
Why this matters for the sector. TeraWulf’s pivot mirrors a broader trend among crypto miners: repurposing power-dense sites originally built for mining into AI data center capacity, where long-duration leases with investment-grade AI labs offer far more predictable revenue than mining economics tied to Bitcoin price and network difficulty. Anthropic’s willingness to sign a 20-year commitment — with two five-year renewal options — also signals how AI labs are increasingly locking in power and compute capacity years ahead of when it’s needed, a pattern also visible in recent large-scale leasing activity between AI labs and infrastructure providers more broadly.
What to watch. The deal is reportedly backed by investment-grade credit support, which should help TeraWulf finance the buildout. The key risks are execution — delivering 401 MW on schedule by early 2028 — and the durability of AI infrastructure demand itself, which underpins every long-duration lease like this one being signed across the sector right now.