SPARC (Devens)
Commonwealth Fusion Systems’ SPARC demonstration tokamak under construction at Devens, Massachusetts, USA.
At a glance
| Source | Author | Role | In one line |
|---|---|---|---|
| America is Building The World’s First Nuclear Fusion Plant | The B1M | subject | The prototype fusion machine that has to work before a power plant is built. |
America is Building The World’s First Nuclear Fusion Plant — The B1M (2025)
Source: Original · Readwise highlight
Under construction in Devons, Massachusetts, which is about 50 miles northwest of Boston,
- Role: subject
- In the video: The video’s central site: CFS is building SPARC here as a demonstration that commercial fusion is possible. The narrator walks through the Tokamak Hall and the surrounding operations, heating, power and utility buildings, and notes that the whole site is dwarfed by ITER’s enclave in France. (The transcript spells the town “Devons”.)
- Why it matters: Everything else in the video, including the planned commercial plant near Richmond, Virginia, depends on SPARC succeeding here.