# Marvel Fusion, Colorado and Siemens Energy sign a letter of intent on laser fusion; ATLAS due December 2026

Canonical page: https://technooptimist.io/stories/marvel-fusion-colorado-and-siemens-energy-sign-a-letter-of-intent-on-9e0ebd36
Date: 12 Aug 2026
About: [Marvel Fusion](https://technooptimist.io/companies/marvel-fusion.md) · [ATLAS fusion demonstrator](https://technooptimist.io/energy/atlas-fusion-demonstrator.md)
Original source: https://www.neimagazine.com/news/transatlantic-alliance-advances-laser-fusion/

Marvel Fusion signed a letter of intent with the State of Colorado and Siemens Energy covering joint research, supply chains and training. The $150-160 million ATLAS facility at Colorado State is slated for substantial completion in December 2026, with test runs in 2027-2031, a prototype in 2032 and commercial roll-out in 2036.

## Key facts

- ATLAS: three ultrashort-pulse lasers firing together at 7 petawatts.
- Marvel handles laser-target physics; Siemens Energy the turbines, grid link and storage.
- Funding to date: nearly €400 million public and private.

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