The short version
● Leases — about $19 billion over 20 years
● Capacity — roughly 401MW of critical IT load
● Site — Justified Data Campus, Hawesville, Kentucky
● Backstop size — not disclosed
On 4 November, TeraWulf announced that Google has agreed to backstop certain Anthropic lease obligations at the Justified Data Campus in Hawesville, Kentucky, alongside a definitive construction agreement with Fluor. The leases run about $19 billion in contracted commitments over 20 years, with two successive five-year renewal options, for roughly 401MW of critical IT load for high-performance computing.
The backstop amount was not disclosed. Each backstop takes effect on the commencement date of the final data hall under its lease, and if Google pays a termination fee it gains the right to acquire an equity interest in Raylan Data, the lessor through its Justified DataPower subsidiary, with no percentage given. Anthropic is the tenant; Google is the backstop provider, not the landlord.
The Anthropic lease was first announced on 6 July 2026, with a limited notice to proceed to Fluor in March. Phased ready-for-service completions are expected from late 2027 through the second quarter of 2028. For how Anthropic is funding commitments at this scale, our breakdown of the Anthropic S-1 has the compute spending figures.
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Sources