General Fusion: LM26 Demonstration Machine Status (Post-2024 Restructuring)
| Milestone | Target Date | Status | Notes | |
|---|---|---|---|---|
| Plasma Injector validation (MTF subsystem) | 2023-2024 | Complete | PI3 device + Magnetized Target Plasma Generator (MTPG) validation | |
| FPP (Fusion Pilot Plant) at Sellafield UK | Originally 2025; paused Sep 2024 | Construction paused | Original commercial target; redirected following funding gap | |
| September 2024 funding restructuring announcement | Sep 2024 | Complete (program redirected) | Significant capital + strategy reset; pause UK FPP construction; refocus on Richland WA LM26 | |
| LM26 device design freeze (Richland WA) | 2024-Q4 | Complete | Scaled fusion-conditions demonstration; not commercial scale | |
| LM26 facility construction begun | 2024-Q4 | In progress | Richland WA campus | |
| LM26 mechanical completion | Target 2025-Q4 to 2026-Q1 | Construction continuing | Mechanical assembly + integration | |
| LM26 first plasma + plasma compression | Target 2026 | Subject to construction completion | Marquee operational milestone for the LM26 program | |
| LM26 fusion conditions demonstration | Target 2026-2027 | Subject to LM26 first plasma + ramp | Plasma compression + scientific milestone; significant slip from original 2025 program | |
| Commercial FPP redirect (post-LM26) | Target 2030-2035 (significantly slipped from original 2025) | Subject to LM26 success + further capital | Reset from original 2025 commercial target by ~7 years | |
| Editorial. Why this matters | Strategic context | General Fusion is the marquee Canadian fusion developer + the only major fusion company pursuing magnetized target fusion (MTF). The September 2024 funding restructuring + pause of the UK FPP marks a significant program reset. Marquee question: does LM26 demonstrate scaled fusion conditions on the 2026-2027 timeline + can the company credibly transition back to a commercial program in the 2030-2035 window, or does the restructuring narrative continue to constrain operations? |
Updated at 2025-Q3
