FormerSpaceX

Critical Energy

Factory-built geothermal plants based on rocket turbines.

Founded
Not disclosed
Headquarters
Not disclosed
Disclosed funding
$22M
Status
Operating
Sector
Energy
Latest round
Seed, $22M
Reported valuation
—
Website
—

Overview

Critical Energy is building modular geothermal power units that apply rocket-engine turbomachinery to deliver firm power to AI data centers. Co-founder and CEO Spencer Jackson worked at SpaceX on Falcon Heavy, Starship and the Raptor engine.

Funding

$22M seed (Jun 2026).

Disclosed funding is the sum of publicly reported rounds found in the sources below. It is a floor, not a complete total.

Founders

Spencer Jackson, Co-founder & CEO
At SpaceX: Engineer on Falcon Heavy, Starship and the Raptor engine
geothermalturbinesdata center power

Sources

  1. TechCrunch: SpaceX alum nabs $22M for geothermal
  2. Latitude Media: Can this rocket engineer help geothermal?

Last verified September 30, 2026.