TeraWulf announced a 20-year lease agreement to supply power to Anthropic, the AI research company backed by Amazon and Google. The deal carries an expected value of $19 billion in revenue, triggering an immediate jump in bitcoin mining stocks across the sector.
The arrangement marks a departure from the traditional mining playbook. Rather than dedicating capacity purely to hash rate, TeraWulf is monetizing infrastructure by leasing power to a major AI workload operator. Anthropic has become one of the largest enterprise consumers of compute, and securing reliable power at scale has become a competitive bottleneck in the AI market.
Mining stocks responded sharply to the announcement. The visibility of a long-term, fixed-revenue contract—spanning two decades—offered investors a concrete alternative income stream beyond volatility in bitcoin's price and mining difficulty. Bitcoin itself was trading around $62,388 at the time, market-cap rank number one, but the stock moves reflected confidence in TeraWulf's ability to service the commitment while retaining some hash capacity.
The deal does leave material questions unanswered. Decrypt did not report the specific megawatt capacity being leased, the geographic location of TeraWulf's facilities, or the per-unit power pricing. Those details would clarify how much of the company's infrastructure is now committed to Anthropic versus remaining available for bitcoin mining. The pricing structure and escalation terms over 20 years also remain undisclosed, creating uncertainty around whether the revenue will hold up if energy costs shift dramatically or if Anthropic's compute demands change.
Regulatory risk shadows both parties. Mining operators face ongoing scrutiny over grid stability, energy sourcing, and carbon intensity in key jurisdictions. Anthropic, while not directly regulated as a financial entity, operates in an environment where AI compute has drawn congressional and international attention. A prolonged lease obligation could expose TeraWulf to policy shifts that force operational changes mid-contract.
The deal also signals how capital-intensive infrastructure plays are becoming gatekeepers in crypto. Mining is no longer just about hashing power and difficulty adjustment. The firm that controls reliable, located power can command premium revenue from multiple buyer categories. For investors, the arrangement suggests mining operators are diversifying revenue beyond the bitcoin issuance and fee market, a hedge against cyclical price pressure.