


Advanced reactors are becoming smaller, more modular, and more flexible. Steam-based systems, designed for large centralized plants, can undermine those same attributes through water dependence, larger footprint, and operational complexity. Echogen's supercritical CO₂ (sCO₂) power conversion technology is designed to support the evolution of reactor design through compact, skid-based equipment, water-free operation, and modular deployment.
Connected through a primary heat exchanger rather than directly to the reactor core, the system remains isolated from direct radiation exposure while supporting reactor temperatures ranging from 400°C to 900°C. Built on more than two decades of sCO₂ expertise, the result is a practical power conversion platform designed specifically for advanced nuclear applications.
Echogen is exploring direct heat exchange between the reactor coolant and the CO2 as a nextgen opportunity to improve performance further
Advanced nuclear is moving toward smaller, modular reactor architectures. Echogen's highly compact turbomachinery is 4x more compact than comparable traditional steam turbomachinery, reducing footprint and infrastructure requirements.
Multiple cycle configurations and skid-based deployment support a wide range of reactor sizes, thermal loads, and deployment models.
The primary heat exchanger interface can be integrated with gas-cooled, metal-cooled, molten salt, heat-pipe, and water-cooled reactor technologies.

Highly compact turbomachinery reduces overall system size and supports deployment models where space and infrastructure requirements matter.
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The closed-loop system eliminates the water requirements associated with traditional steam-based power conversion systems, enabling deployment in arid climates, arctic environments, and sites where water access is constrained or operationally sensitive.

Multiple cycle layouts and skid-based installation support factory-built and modular reactor approaches.







