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TeraWulf secures Google backstop for Anthropic's Kentucky AI campus lease obligations
Google backs Anthropic's lease on a 401-megawatt Kentucky data center, strengthening TeraWulf's financing for $19 billion in contracted commitments.
TeraWulf secured a credit backstop from Google LLC for Anthropic's lease obligations at a Kentucky data center campus, a move the company's CFO said will strengthen financing for roughly $19 billion in contracted lease commitments. The agreements, disclosed in a November 4, 2026 regulatory filing, also lock in Google-approved tensor processing units as the exclusive accelerator hardware across the site.
The backstop covers three buildings at the Justified Data Campus in Hawesville, where Anthropic has signed 20-year leases for approximately 401 megawatts of critical IT load. TeraWulf simultaneously executed a definitive construction agreement with Fluor Enterprises to build out the facilities, with phased completions expected from late 2027 through mid-2028.
How the credit support works
The filing names TeraWulf, its subsidiary Raylan Data, wholly owned Justified DataPower, Anthropic, and Google as parties to three credit support agreements. Each backstop activates when the final data hall under its corresponding lease reaches its commencement date. It can terminate once Anthropic-or an affiliate guaranteeing its obligations-achieves and holds specified investment-grade ratings for at least three months.
If Anthropic defaults on rent or becomes insolvent, Google can pay the rent currently due and assume the lease as tenant. The agreements also give Google an alternative: pay a termination fee that amortizes over a defined term, which then grants Google the right to acquire an equity interest in Raylan. Google cannot choose the termination route during the first six years unless the installed TPU pods consume less than half of tenant critical power.
CFO Patrick Fleury said the investment-grade backing from Google, an Alphabet subsidiary, strengthens the project's financing profile and TeraWulf's ability to pursue competitive long-term debt. Alphabet's senior unsecured debt carries ratings of AA+ from S&P Global Ratings and Aa2 from Moody's.
Hardware lock-in and lease structure
The agreements require Anthropic and its affiliates to use only Google-approved tensor processing units for accelerator processors throughout the lease term. That provision gives Google a defined contractual role in the campus's accelerator configuration and in any tenant default scenario.
The underlying Anthropic lease, first announced July 6, 2026, runs 20 years with two successive five-year renewal options. Rent obligations begin upon delivery of each data hall. TeraWulf does not invest in AI compute hardware itself-the company develops and operates power-backed infrastructure under long-term leases, making credit support and construction execution central to its revenue model.
Construction scope and open pricing
Fluor's definitive agreement expands earlier limited work into full engineering, procurement, construction, testing, and commissioning across the three buildings. It establishes delivery milestones, open-book cost reporting, procurement oversight, and contractual performance protections. Guaranteed maximum pricing is still being established as engineering and procurement advance.
Project debt remains anticipated rather than completed. TeraWulf's contracted revenue still depends on delivering the data halls that trigger Anthropic's rent obligations. The Google agreements define protections and options around specified lease defaults, but the financing and construction pricing are not yet final.
Why this matters for finance, real estate, and operations leaders
For finance and insurance professionals, the structure is the story: an AA+/Aa2-rated parent backstopping a tenant's lease obligations to unlock project debt. The backstop's mechanics-payment default triggers, the six-year termination restriction, the equity interest provision-create a layered risk allocation worth studying for anyone structuring large-scale infrastructure deals.
Real estate and construction executives should watch how Fluor's open-book, guaranteed-maximum-price model plays out across a campus of this scale. For operations and sales leaders, the exclusive TPU requirement signals how hardware vendor lock-in is migrating from software licensing into the physical infrastructure layer, with contractual terms that could shape site-level decisions for decades.