Type One Energy

Overview

Confinement

Stellarator

Read the 101 on Stellarator

Fuel cycle

D-T

Development stage

Demo under construction

Key milestone

Published first unified fusion power plant design basis; HTS magnet test campaign confirmed key design elements; UK Infinity Fusion Consortium formed with Tokamak Energy + AECOM, May 2026

Target first commercial power

Mid-2030s

Notes

PRIORITY 1 for Dispatch: the clearest retired-generation-asset-to-fusion precedent in the sector, AND now actively seeking a European (UK) site via a consortium that includes an EPC (AECOM). Directly analogous to what Dispatch offers.

Design point

Design net power

350 MWMWe (Infinity Two, design target)

Reactor island volume

PENDING

Time-averaged power density

—pending volume

Evidence grade

E3

Grade rationale

Published a peer-reviewed-style unified power plant design basis and confirmed HTS magnet design elements through a test campaign — stronger than company-stated-only. Infinity One demonstrator not yet built.

Funding

Lifetime funding

US$ 169M

Latest round

Venture-backed since 2023; cumulative ~$169M

Key investors

Emerson Collective, Engine Ventures, GS Futures, TDK Ventures

Siting

Flagship site

Bull Run (former TVA coal plant), Anderson County, TN + UK site TBD

Siting status

Named US site (retired coal repurposing); UK site under consortium development

Offtake / PPA

TVA cooperative agreement

Grid fit

The metric set that maps onto ex-battery sites. Pending cells are open questions for the company.

As of

August 9, 2026Medium

Footprint (ha, FOAK)

PENDING (repurposing existing Bull Run coal plant footprint)

Cooling type

Water (existing coal-plant cooling infrastructure may be reusable)

Grid connection class

Existing TVA transmission connection at Bull Run

Startup import load

PENDING

Conversion type

Thermal (steam cycle, expected)

Ramp capability

PENDING

Notes

Reuse of an existing coal-plant grid connection is the single clearest Dispatch-relevant precedent in the sector.