Key Takeaways Google becomes TeraWulf's largest shareholder with 14% stake through $3.2 billion financial backstop for AI infrastructure expansion. TeraWulf's $3.2 billion junk bond offering attracted...
Google has introduced a novel financing structure to the artificial intelligence infrastructure boom, backing a $3.2 billion debt transaction for TeraWulf Inc.'s data center expansion that has attracted overwhelming interest from high-yield investors.
The deal, which positions Alphabet Inc.-owned Google as TeraWulf's largest shareholder with a 14% stake, generated more than $10 billion in orders from investors eager to tap into AI infrastructure opportunities, according to people familiar with the matter.
Morgan Stanley is leading the green bond offering at a yield of 7.75%, significantly higher than the 5.71% average for similarly-rated debt.
The transaction represents a rare opportunity for junk bond investors to participate in AI infrastructure financing, which has primarily been conducted in securitized or investment-grade markets.
Under the arrangement, Google provides a financial backstop that activates once TeraWulf's Akela Project data center in Barker, New York, becomes operational and AI cloud platform Fluidstack begins its lease.
However, the structure exposes creditors to construction risk, an unusual feature for high-yield debt. If construction is delayed by more than 180 days, Fluidstack can terminate its lease without triggering Google's guarantee.
Anubhav Arora, a senior director at Fitch Ratings, explained the rating challenge: "Once the construction phase is completed, only then will it generate cash flow.
The construction phase is constraining the rating. But we feel the operating phase is stronger once the construction is completed."
Arora added that while the construction timeline appears aggressive, technical advisors have deemed it achievable. "The construction schedule, in our view, is a bit aggressive or accelerated, but the technical advisor on the transaction has said it's achievable," he said.
Both Fitch and Moody's Ratings assigned the debt BB and Ba2 ratings, respectively, placing it at the high end of junk territory.
TeraWulf, originally founded in 2021 as a sustainable Bitcoin mining company, is redirecting its energy infrastructure toward AI and high-performance computing following the April 2024 Bitcoin halving that cut mining rewards and squeezed profitability.
The company is raising funds through a special purpose vehicle called Wulf Compute, with proceeds ring-fenced from the parent company.
The Akela Project will provide 450 megawatts of capacity at TeraWulf's Lake Mariner campus, which already houses the La Lupa data center with 72.5 megawatts of capacity.
Kerri Langlais, TeraWulf's Chief Strategy Officer, called Google's investment "powerful validation from one of the world's leading technology companies," highlighting "the strength of our zero-carbon infrastructure and the scale of the opportunity ahead."
She clarified the backstop's scope in an interview with Cointelegraph: "This is not a guarantee of TeraWulf's corporate debt, nor do we have access to those funds. The backstop is tied exclusively to contracted AI and high-powered computing lease revenues and is unrelated to our Bitcoin mining operations."
The financial backing supports a 10-year colocation lease agreement between TeraWulf and AI infrastructure provider Fluidstack. In exchange for the backstop, Google received warrants to purchase over 73 million TeraWulf shares, increasing its stake from 8% to 14%.
Fluidstack recently exercised an option to expand at Lake Mariner with CB-5, a new purpose-built data center providing 160 megawatts of critical IT load. The facility is expected to begin operations in the second half of 2026.
TeraWulf projects the Fluidstack agreement will generate $6.7 billion in contracted revenue, potentially reaching $16 billion through lease extensions. The partnership brings total contracted capacity at Lake Mariner to over 360 megawatts.
Paul Prager, TeraWulf's CEO, stated the expansion "unites world-class capital and compute partners" to deliver next-generation AI infrastructure, according to published reports.
TeraWulf's stock has experienced significant volatility since announcing the Google partnership. Shares surged more than 72% over five trading days in August when the initial Fluidstack deal was disclosed, with the stock rallying 17% to $10.57 before settling at $9.38.
The company's pivot reflects a broader industry trend. A 2024 VanEck report estimates that redirecting 20% of Bitcoin miners' energy capacity to AI and high-performance computing by 2027 could generate $13.9 billion in additional annual profits over 13 years.
Langlais indicated TeraWulf plans to maintain but not expand its Bitcoin mining operations, focusing instead on execution and delivery for AI and HPC partners.
"In the near term, mining generates cash flow and provides a valuable resource to the electrical grid, as its flexible load can be rapidly adjusted to support stability and reliability," she said. "However, over the medium to long term, we see greater value in transitioning those megawatts to AI and HPC workloads."
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