AMPERA nuclear module on a studio floor

Technology

Nuclear, built like a product.

An integrated neutron driver supports subcritical operation of a thorium-fueled breeder system. Safety built into the physics.

Core-for-life nuclear system

The first full-scale 3D-printed nuclear reactor module.

A compact 4.5 ft core with shielding, built around a proprietary gyroid structure with microchannels. Solid state. No criticality, no refueling.

01

Subcritical architecture

The core cannot sustain a chain reaction on its own. It needs an external source to breed, so it turns on and off instantly and is passively safe.

02

Accelerator driven

An integrated neutron driver, a high-yield neutron generator, sustains subcritical operation.

03

Spherical monolithic core

One printed part, sealed at the factory. No fuel handling and no spent-fuel systems on site.

04

Xenon-transient resilience

Designed for immediate restart capability, without the xenon-poisoning wait that limits conventional reactors.

Thorium TRISO fuel

Abundant. Low cost. Safe.

Fertile thorium TRISO particles, made by a proprietary liquid-metal jetting process, are designed for a target of up to 30 years of operation without refueling. Natural thorium needs no enrichment, reduces safeguard requirements and minimizes proliferation risk.

4×more abundant than uranium
1000×smaller waste footprint
100×lower cost than HALEU
Innovative power generation · sPower

sPower: supercritical CO2, field proven.

Closed-loop sCO2 Brayton-cycle power: compact equipment, rapid startup, water-free operation, lower energy cost. AMPERA acquired a world-leading sCO2 system built on 20 years of R&D.

sPower: supercritical CO2 power blockPre-production prototype of the sPower sCO2 system in a test hall
sPower pre-production prototype
Dimensions
36 × 11 × 12.5 ft
Weight
115,000 lb
Cycle
Simple cycle, split process and power turbomachinery, 2 recuperators
Turbopump TIT
375°C
Compressor outlet
250 bar
Operating data
Thousands of hours, accelerated lifetime testing
Process innovations

Additive manufacturing runs through the whole stack.

A

Printed heat exchangers

3D-printed primary heat exchangers, micro-turbines and combustors cut size by half.

B

Superalloy deposition

Special nickel superalloy deposition methods resist CO2 corrosion at high temperature.

C

Printed fuel

Liquid-metal jet printed TRISO kernels for the thorium fuel.

See what it powers.