GIGA (Gauss Fusion)

GIGA is Gauss Fusion's planned first-of-a-kind commercial stellarator power plant, developed by a consortium of European industrial firms. Its conceptual design report (2025) estimates EUR 15-18 billion and targets operation by the mid-2040s; the design passed independent review and the company changed CEO in April 2026.

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Current state

Notes

Grid target given only as 'mid-2040s'. Plant cost is an order-of-magnitude estimate. No site or power rating stated in the sources reviewed. Funding not disclosed.

Timeline

• 2025-10-16 — Gauss Fusion released its GIGA conceptual design report, estimating EUR 15-18 billion and targeting operation by the mid-2040s. (source)
• 2026-01 — An independent panel of fusion and industry experts reviewed the GIGA conceptual design report. (source)
• 2026-04-15 — CEO Milena Roveda stepped down following completion of the conceptual design phase. (source)

The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.

Related projects

• Alpha (Proxima Fusion) Design · Germany
• Eos (Thea Energy) Design · United States
• Focused Energy laser fusion plant (Biblis) Concept · Germany
• Helix HARUKA (Helical Fusion) Under construction · Japan
• Infinity One (Type One Energy) Licensing · United States
• Infinity Two (Type One Energy / TVA) Licensing · United States
• Stellaris (Proxima Fusion) Design · Germany
• Wendelstein 7-X Operating · Germany

See all 51 projects in the Fusion Energy Companies & Projects Tracker →

Sources

1. Gauss Fusion releases blueprint for development of its GIGA fusion plant — World Nuclear News, checked 2026-10-11
2. Gauss Fusion - Developing stellarator fusion power plants — Gauss Fusion (primary), checked 2026-10-11
3. Where now Gauss Fusion? — FusionXInvest, checked 2026-10-11