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# Google backstops Anthropic's $19B Kentucky data center leases
- URL: https://venture-block.com/google-backstops-anthropic-19b-terawulf-kentucky-leases/
- Published: 2026-11-05T14:18:34.000Z
- Updated: 2026-11-05T14:18:34.000Z
- Description: TeraWulf said Google will backstop debt tied to roughly $19 billion of Anthropic leases in Kentucky and signed a definitive Fluor EPC for three data center buildings.
- Author: Venture Block
- Tags: Funding, AI

TeraWulf said on Tuesday that [Google has agreed to credit-support debt financing](https://investors.terawulf.com/news-events/press-releases/detail/148/terawulf-secures-google-credit-backstop-for-project-financing-in-support-of-19-billion-anthropic-lease-executes-definitive-fluor-epc-agreement?ref=venture-block.com) tied to roughly $19 billion of contracted leases with Anthropic at the company's planned Justified Data Campus in Hawesville, Kentucky. The same release said TeraWulf signed a definitive engineering, procurement and construction agreement with Fluor for three data center buildings on the site.

The backstop matters because Anthropic still needs large blocks of dedicated power and floor space as it scales Claude, and lenders typically demand a stronger credit behind a long-term tenant before they fund a multi-building campus. Alphabet's Google unit is already Anthropic's largest cloud and capital partner; standing behind the Kentucky leases extends that relationship into the project-finance layer rather than only into cloud credits or equity.

The news is a material infrastructure step beyond Anthropic's recent IPO paperwork. Venture Block previously covered the company's [amended S-1/A](https://venture-block.com/anthropic-s1a-ai-accelerated-research-q3-revenue/), which focused on revenue trajectory and research automation rather than on how the firm would secure physical campuses.

## What the filing says the backstop does

In a [Form 8-K filed the same day](https://investors.terawulf.com/sec-filings/all-sec-filings/content/0001628280-26-069810/0001628280-26-069810.pdf?ref=venture-block.com), TeraWulf said subsidiaries entered credit support agreements with Google LLC covering debt that will support Anthropic leases at Justified. According to the company, each backstop becomes effective when the final data hall under the related lease is ready to commence, and it can fall away if Anthropic or a guaranteeing affiliate holds investment-grade ratings for at least three consecutive months.

If Anthropic defaults on rent or becomes insolvent, Google may pay amounts due and assume the lease as tenant, or, under certain conditions, pay a termination fee and take an equity interest in Raylan Data LLC, the TeraWulf subsidiary that holds the leases. Google can also keep covering unpaid rent while it decides which path to take. That structure is meant to keep the landlord whole and give lenders a route to Alphabet-grade credit if the tenant cannot perform.

Alphabet's senior unsecured ratings cited in TeraWulf materials are AA+ at S&P and Aa2 at Moody's. Those ratings are the practical reason a backstop of this kind can change financing terms for a hyperscale build.

## Kentucky leases, TPUs and Fluor

TeraWulf said Raylan signed a 20-year lease with Anthropic in July 2026 for about 401 megawatts of critical IT load across three buildings labeled CB-1, CB-2 and CB-3\. Rent starts as each hall is delivered. The company targets deliveries from late 2027 through the second quarter of 2028.

An exhibit to the 8-K states that the tenant must use only Google-approved TPUs for accelerator processors in the premises, and it ties certain early rejection rights to whether installed TPU capacity can draw less than half of the tenant's critical power. In plain terms, Google is not only backstopping rent; the lease also steers the campus toward Google's own AI accelerators rather than leaving the chip mix open.

Separately, TeraWulf said it moved from a March 2026 limited notice to proceed with Fluor to a definitive open-book EPC with a guaranteed maximum price still being set for the three buildings. TeraWulf develops and operates the infrastructure and does not buy the AI compute hardware for the tenant.

## Why investors are watching the credit stack

AI labs have been racing to lock multi-year power and shell capacity while chip supply and interconnection queues remain tight. Independent coverage, including [Silicon Report's read of the filing](https://www.siliconreport.com/google-backs-debt-for-terawulf-s-roughly-19b-anthropic-lease?ref=venture-block.com), has framed the Google agreements as a way to make TeraWulf's Anthropic leases bankable at the scale of roughly $19 billion in contracted rent.

That sits next to a broader funding wave around AI infrastructure and inference. Recent Venture Block coverage of [Fal's $1.3 billion Series F](https://venture-block.com/fal-1-3b-series-f-16b-valuation-generative-media-inference/) and [FuriosaAI's $620 million Series D](https://venture-block.com/furiosaai-620m-series-d-rngd-inference-chips/) pointed to the same pressure: model companies and their suppliers are raising and contracting against long-dated demand for compute, not only against product launches.

For Anthropic, a Google-backed campus in Kentucky is another sign that its capacity plan is being written into long-term real estate and debt documents, not only into cloud reserved instances. For TeraWulf, the Fluor EPC and Google credit support are the two pieces lenders usually want to see before they fund a multi-building AI site. The next milestones to watch are the final guaranteed maximum price on the EPC, the size and terms of the project debt, and whether deliveries stay on the late-2027 to mid-2028 schedule the company has outlined.