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Power · Evidence brief

Microsoft signs Helion fusion power purchase agreement

Microsoft + Helion Energy + Constellation

Primary sourcePress release only2023-05-10
Deal structureFusion power purchase agreement
GeographyUnited States
Infrastructure layersPower + data centers
Disclosed scaleTargeted 50 MW fusion plant with power delivery planned in 2028

Why it matters

The strategic read

Even before the nuclear restart wave, Microsoft began contracting for speculative firm clean power that could match future AI/cloud load.

Source-supported terms

What was disclosed

  1. 01

    Helion announced what it described as the world’s first fusion power purchase agreement with Microsoft.

  2. 02

    The agreement targeted electricity from a 50 MW fusion plant.

  3. 03

    Constellation was named as power marketer for the arrangement.

Disclosure boundary

What is known—and what is not

PPA announcement; commercial operation depends on successful fusion deployment.