Google has agreed to backstop Anthropic’s rent obligations on TeraWulf’s roughly $19 billion data center lease in Hawesville, Kentucky — putting Alphabet-grade credit behind a 401-megawatt campus so the project can raise cheaper debt. Why it matters: the AI buildout is increasingly financed on the credit of the biggest tech companies, not the startups signing the leases.
November 4, 2026 — TeraWulf said on Wednesday it has secured credit support agreements with Google for its “Justified” data campus in Hawesville, Kentucky, and signed a definitive construction agreement with Fluor Enterprises to build it.
What happened
In a Form 8-K filed November 4, TeraWulf disclosed three credit support agreements under which Google will stand behind certain of Anthropic’s obligations under three leases covering about 401 megawatts of critical IT load. The leases, signed in July through TeraWulf’s Raylan Data subsidiary, run for 20 years and total roughly $19 billion in contracted commitments. If Anthropic misses rent or becomes insolvent, Google can step in — paying what is due and taking over as tenant, or paying a termination fee. TeraWulf’s chief financial officer, Patrick Fleury, said the investment-grade credit support strengthens the project’s financing profile and its ability to pursue competitive long-term debt. The filing does not disclose committed debt terms or amounts.
The build, and when the backstop ends
Alongside the Google agreements, TeraWulf executed a definitive engineering, procurement and construction agreement with Fluor Enterprises on a guaranteed-maximum-price basis, covering three data center buildings — expanding on a limited notice to proceed announced in March. Delivery is expected in phases from late 2027 through the second quarter of 2028, and rent begins only as each data hall is handed over. Google’s backstop is not open-ended: it terminates once Anthropic, or a guaranteeing affiliate, achieves and maintains investment-grade credit ratings for at least three months. TeraWulf shares fell about 3% in premarket trading amid a broader slide in AI data center stocks.
Why it matters
This is the financing plumbing behind the AI boom, made visible. Anthropic gets the capacity it needs without lenders having to price 20 years of rent on a young company’s credit alone; TeraWulf gets a financeable project; and Google deepens its position around a lab it already supplies and invests in. The test, as always, is execution: nothing is owed until buildings are delivered in late 2027 and 2028, and the guarantee is designed to disappear the moment Anthropic can stand on its own credit. For readers tracking where AI infrastructure risk actually sits, the answer is increasingly: on the balance sheets of the giants.
Frequently asked questions
What did Google agree to?
Google agreed to backstop certain of Anthropic’s rent obligations under its TeraWulf leases in Kentucky. If Anthropic defaults, Google can pay the rent and assume the lease, or pay a termination fee.
How big is the TeraWulf–Anthropic deal?
About 401 megawatts of critical IT load over 20 years, worth roughly $19 billion in contracted lease commitments, across three buildings at the Justified campus in Hawesville, Kentucky.
When will the campus open?
Delivery is expected in phases from late 2027 through the second quarter of 2028. Rent starts when each data hall is delivered.
When does Google’s backstop end?
It terminates once Anthropic, or a guaranteeing affiliate, holds investment-grade credit ratings for at least three months.
Sources: Reuters; TeraWulf Form 8-K coverage (Minichart, Quantisnow, Crypto Briefing)