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Demonstration System (Pacific Fusion)

Under construction · United States · Pulsed-power inertial

Pacific Fusion's Demonstration System is a pulser-driven inertial fusion machine that aims for net facility gain by 2030, with fusion bursts above 100 MJ. The company broke ground on a $1 billion-scale research and manufacturing campus in Albuquerque in August 2026.

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Current state

StatusUnder construction
CountryUnited States
LocationMesa del Sol, Albuquerque, New Mexico
DeveloperPacific Fusion
Developer typePrivate
ConceptPulsed-power inertial
FuelD-T
PurposeDemonstration
Net energy target2030
SiteGroundbreaking at Mesa del Sol, Albuquerque, August 2026
Private funding raisedUSD 900m (as of 2024-10)

Notes

net energy target 2030 is 'net facility gain' (fusion yield > total energy stored in the machine), stricter than target gain but not Q_eng/electricity. private funding raised is the Series A commitment, released in milestone tranches; aggregators report total commitments above $1bn by June 2026 (unverified).

Timeline

  • 2024-10 — Pacific Fusion emerged from stealth with a milestone-tranched Series A commitment of more than $900 million led by General Catalyst. (source)
  • 2026-02 — Pacific Fusion and Sandia National Laboratories reported a simplification of pulser-driven ICF in joint experiments. (source)
  • 2026-08-24 — Pacific Fusion broke ground on its Albuquerque campus to house the Demonstration System. (source)

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

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Sources

  1. Pacific Fusion breaks ground on first-of-a-kind fusion facility in New Mexico — Pacific Fusion (primary), checked 2026-10-11
  2. A new nuclear fusion startup has raised $900M in Series A funding — Power Engineering, checked 2026-10-11
  3. Fusion simplification demonstrated by Pacific Fusion and Sandia — ANS Nuclear Newswire, checked 2026-10-11
  4. Pacific Fusion — Sacra, checked 2026-10-11