
The forces of nature.
Engineered into power.
Segal Energy
Fusion, heat from the ground, and energy from living systems.
Segal Energy produces power. The plasma, the well, and the organism each run as a complete system.

A fusion machine that runs.
Fusion
Segal Fusion holds the plasma, drives the magnets, and closes the fuel cycle.
Plasma Control Suite runs the shot and predicts a disruption. Helix-0 is the machine the rest of the program runs on. Divertors, breeding, and plasma-facing materials share the thermal and mechanical problem. Each step has a measurement.
Control
Timing and measurement follow the plasma.
Magnets
Field, forces, heat, and how the magnet is built.
Materials
Heat and particle exposure set the materials work.

Heat, from the ground to the plant.
Geothermal
Segal Geothermal models the reservoir, drills the well, and converts the heat.
Subsurface Twin is the reservoir model. Brine Ledger tracks the materials that come up with the heat. Closed-loop, enhanced, and supercritical wells follow the geology. Drilling and the surface plant sit in one energy and cost account.
The model
Measurements set the assumptions and show the gaps.
The well
The resource decides how heat is brought up.
Conversion
Heat demand, power, and chemistry are one plant.

Fuel from living systems.
Bio
Segal Bio grows the organism, runs the reactor, and delivers hydrogen and biomass.
Strain, reactor geometry, and the path to hydrogen run together. Bioreactor OS monitors the process. Drawdown Ledger records the carbon. Light, water, nutrients, and downstream processing sit on the energy account.
Biology
The organism and the conditions set the fuel.
The reactor
Transfer, control, and maintenance are one system.
The account
Carbon and energy follow the full set of inputs and outputs.

The material cycle.
Resources
The resource work covers fuel, recovered material, and the inventory of an energy system.
Tritium breeding and recovery, lithium-bearing brines, and carbon flows each have their own handling. A material record and dispatch software keep provenance and system state. Availability and waste stay in the energy account.
Fuel cycle
Supply, handling, and recovery run through the process.
Provenance
Origin and change stay in a traceable record.
Planning
Inventory and operating limits follow energy demand.

Products
Energy, from the plasma to the well to the organism.
Fusion, geothermal, biological production, and the materials a fuel cycle depends on.
Gradients
Four programs, not one pipeline.
Segal Fusion
- Plasma Control Suite
- Helix-0
Segal Geothermal
- Subsurface Twin
Segal Bio
Segal Resources
Fusion systems
Plasma control, high-field magnets, and plasma-facing materials are one engineering problem.
Geothermal systems
The subsurface model, the well, and the surface plant follow the geology, the heat demand, and the site.
Biology and resources
Photobioreactors, biohydrogen, and resource recovery are judged with water, material, and energy inputs.
Partnerships
- Segal Fusion
A fusion machine: plasma, magnets, materials, and control, integrated as one system.
- Segal Geothermal
Heat from the reservoir, through the well, into the plant.
- Segal Bio
Photobioreactors that deliver hydrogen and biomass.
- Segal Resources
Fuel, recovered material, and the record of where it came from.
On the homepage
Biological energyWork with Energy
The resource, the demand, the site, and the measurements define the plant.
Build the frontier
with us.
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