Alphabet secured leases covering approximately 2.4 gigawatts of capacity across ten projects through partnerships with cryptocurrency mining companies transitioning to AI infrastructure hosting. In September 2025, Google backstopped $1.4 billion of a $3 billion, 10-year AI hosting lease between Fluidstack and Cipher Mining, covering an initial 168 megawatts at a Texas facility with potential expansion to 244 megawatts. The arrangements address Alphabet's growing energy requirements for artificial intelligence workloads by leveraging existing power infrastructure originally built for Bitcoin mining operations. Alphabet also backed a previous $1.8 billion guarantee for a Fluidstack-TeraWulf deal covering 200 megawatts, and in December 2025 announced plans to acquire clean energy developer Intersect Power for $4.75 billion plus debt. The strategy combines immediate capacity access through crypto miner partnerships with long-term renewable energy development targeting 10.8 gigawatts by 2028.
Google Backstops $1.4 Billion Cipher Mining Lease in September 2025
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 initial arrangement covers 168 megawatts of capacity at a facility in Texas, with room to scale up to 244 megawatts. In exchange for the guarantee, Alphabet received warrants granting it an approximately 5.4% equity stake in Cipher Mining. Cipher Mining built out a roughly 2.4 gigawatt development pipeline focused on high-performance computing and AI applications, representing a shift from its origins as a Bitcoin mining operation.
Alphabet Guaranteed $1.8 Billion TeraWulf-Fluidstack Agreement
Alphabet backed a previous $1.8 billion guarantee in a deal between Fluidstack and TeraWulf covering 200 megawatts of capacity. The guarantee structure mirrors the Cipher Mining arrangement, providing financial backing for the lease agreement between the AI infrastructure provider and the former cryptocurrency mining operator.
Crypto Mining Infrastructure Supports AI Workload Transition
Bitcoin miners secured cheap power in remote locations and built electrical infrastructure to consume large amounts of electricity over the last decade. The transition from mining Bitcoin to hosting AI workloads involves replacing ASICs with GPUs while maintaining the same power contracts and facility structures. Rather than acquiring these companies outright, Google uses lease guarantees and warrant positions to access power and space without operational complexity of running mining-turned-data-center facilities.
Alphabet Announces $4.75 Billion Intersect Power Acquisition in December 2025
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 gigawatts by 2028. The Intersect deal provides Google control over greenfield renewable energy and data center projects. Combined with the crypto miner partnerships, Alphabet operates a two-pronged approach: using existing miner infrastructure for near-term capacity and developing new clean energy projects.
FAQ
What energy capacity did Alphabet secure through crypto miner partnerships?
Alphabet locked down leases covering approximately 2.4 gigawatts of capacity spread across ten projects through partnerships with cryptocurrency mining companies transitioning to AI infrastructure hosting.
What terms did Google agree to in the Cipher Mining deal in September 2025?
In September 2025, Google agreed to backstop $1.4 billion of a $3 billion, 10-year AI hosting lease between Fluidstack and Cipher Mining, covering an initial 168 megawatts at a Texas facility with potential expansion to 244 megawatts. Alphabet received warrants granting it an approximately 5.4% equity stake in Cipher Mining in exchange for the guarantee.
What capacity does Intersect Power target by 2028?
Intersect Power's portfolio targets a total capacity of 10.8 gigawatts by 2028, following Alphabet's announced acquisition of the clean energy developer for $4.75 billion plus debt in December 2025.
