7 forecasters

When will Commonwealth Fusion System's SPARC tokamak first demonstrate net power (Q > 1)?

Current estimate

10 Aug 2030

No key factors yetAdd some that might influence this forecast.

Authors:

Opened:

Jul 27, 2025

Closes:

Dec 31, 2032

Scheduled resolution:

Jan 2, 2033

Spot Scoring Time:

Jul 30, 2025