Alphabet has locked down leases covering roughly 2.4 gigawatts of capacity across ten projects, partnering with companies that used to mine Bitcoin. Rather than buying the operators, Google guarantees their lease payments and takes warrants, as with the approximately 5.4% stake it holds in Cipher Mining.
Google's parent company has locked down leases covering roughly 2.4 gigawatts of capacity spread across ten projects, and it is doing so by partnering with companies that used to spend their days mining Bitcoin. Instead of acquiring these operators outright, Alphabet uses lease guarantees and warrant positions, which keeps it out of the operational complexity of running mining-turned-data-center facilities.
The Cipher Mining guarantee and the Fluidstack connection
In September 2025, Google agreed to backstop $1.4 billion of a $3 billion, 10-year AI hosting lease between Fluidstack and Cipher Mining. The arrangement initially covers 168 MW of capacity at a facility in Texas, with room to scale up to 244 MW.
Cipher itself has built out a roughly 2.4 GW development pipeline focused on high-performance computing and AI applications, a dramatic shift from its origins as a Bitcoin mining operation. Alphabet also backed a previous $1.8 billion guarantee in a deal between Fluidstack and TeraWulf covering 200 MW of capacity.
Why former mining sites fit AI workloads
Bitcoin miners already spent the last decade securing cheap power in remote locations and building out the electrical infrastructure to consume enormous amounts of it. Moving from mining Bitcoin to hosting AI workloads is therefore less a strategic reinvention than a tenant swap, because the buildings and the power contracts stay the same. The GPUs replacing the ASICs are different machines, but they need the same thing: reliable, cheap electricity delivered at scale.
Clean energy forms the second prong
In December 2025, Alphabet announced plans to acquire clean energy developer Intersect Power for $4.75 billion plus debt. Intersect's portfolio targets a total capacity of 10.8 GW by 2028, handing Google greenfield renewable energy and data center projects to develop for long-term scalability.
For publicly traded crypto miners with HPC pivot strategies, Google's willingness to backstop multi-billion-dollar leases provides a credibility stamp that was previously missing. Alphabet's role as financial guarantor, plus its roughly 5.4% equity stake in Cipher, changes the risk calculus considerably.
There is a risk dimension worth noting. These are long-duration commitments, with the Cipher-Fluidstack lease spanning ten years, and if AI demand growth slows or a technological shift reduces compute requirements, the economics of these deals could sour.
Source: Crypto Briefing
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