Capture. Store. Generate. Dispatch.

How STEGS™ turns a day of sun into round-the-clock power.

Sunlight is collected and stored as heat

The STEGS™ Collector captures the full solar spectrum and converts it into storable, usable heat.

250–310 °C collector operating temperature

Heat stored in proprietary thermal block

Heat from the collectors is transferred into the STEGS™ thermal block, designed to hold it for up to 48 hours.

250–300 °C storage band 48 h design storage Firm Capacity 24/7 generation on demand

The sun goes down. Generation does not stop.

After sunset, stored heat is drawn from the hot end of the block to drive an ORC turbine at 250 °C, delivering firm electricity through the night. Air-cooled, with zero water use.

250 °C to ORC ~90 % capacity factor zero water air-cooled

Generation sized to any demand

STEGS™ is truly modular: configured in 5–15 MW modules, the system grows with demand.

15 → 60 MW Illustrative plant capacity

Engineered with partners.

Developed with established engineering and materials partners.

48 h Design storage Design-basis storage in the concrete thermal block.
~90 % Capacity factor Plant capacity factor, with the ORC operating at 250 °C.
24/7 Firm Capacity 24/7 generation on demand.
zero water Air-cooled Air-cooled condensing — no water consumed in operation.

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