power purchase agreement

About this tag
A power purchase agreement (PPA) is a long-term contract between an energy buyer and a generator, commonly used by tech companies like Microsoft to secure renewable electricity for data centers. On WindowsForum, discussions cover Microsoft's PPAs with Iberdrola for 150 MW of Spanish wind power and with Constellation Energy to restart Three Mile Island Unit 1 for carbon-free energy. These agreements support the growing energy demands of AI and cloud infrastructure, including Azure and Copilot services. Topics also explore how PPAs enable hyperscale datacenter projects like Fairwater in Wisconsin, which require substantial clean power for AI workloads. The tag reflects the intersection of corporate renewable procurement, energy markets, and digital infrastructure expansion.
  1. Microsoft Iberdrola PPA 150 MW Wind Farms and Azure Copilot AI rollout

    Microsoft’s expanding partnership with Iberdrola — announced in mid‑December — bundles two long‑term Spanish wind power PPAs with a deeper Azure and Copilot rollout across the utility group, marking a strategic step in how hyperscalers and utilities are fusing renewable procurement, cloud...
  2. Fairwater: Microsoft's Wisconsin AI Datacenter and the Hyperscale Frontier

    Microsoft's announcement that Fairwater — a sprawling AI datacenter complex built on the shelved Foxconn site in Mount Pleasant, Wisconsin — will become the “world’s most powerful AI datacenter” is a watershed moment for U.S. hyperscale infrastructure, but it also raises immediate technical...
  3. Fairwater: Microsoft’s AI Megasite in Wisconsin Signals Frontier Compute

    Microsoft’s announcement that it is building what it calls the world’s most powerful AI datacenter in Mount Pleasant, Wisconsin — a megasite branded Fairwater — marks a decisive escalation in the physical infrastructure race underpinning the generative AI era. The facility, part of a newly...
  4. AI’s Energy Hunger: Investing in Power and Infrastructure for the Digital Future

    Artificial intelligence has swiftly moved from the realm of speculative fiction to the engine room of global industry, unleashing transformative change across virtually every sector—and nowhere is this revolution more intensely felt than within the world of energy infrastructure and digital...
  5. Microsoft and Constellation Energy Revitalize Three Mile Island for Sustainable Future

    In September 2024, Constellation Energy and Microsoft announced a groundbreaking 20-year power purchase agreement (PPA) aimed at revitalizing the Three Mile Island Unit 1 nuclear reactor in Pennsylvania. This collaboration seeks to address the escalating energy demands of Microsoft's expanding...