The brief

Analyst view

• Stores renewable electricity as heat in bricks. Operational at Siam Cement (33 MWh). Contracted with Covestro and HEINEKEN (100 MWh each).
• Each unit delivers 7 MW of continuous heat at 1,500°C, eliminating 13,000+ tonnes CO₂ annually.

Technical approach

As reported

Storage

Heat stored in bricks

Engineered ceramic bricks, proven in steel mills, store heat as thermal mass at 1,500°C.

Dispatch

Heat feeds a boiler

Hot bricks warm a steam boiler, delivering constant-temperature steam around the clock.

Charging

Charged at cheap renewable times

The system charges when solar and wind power is abundant and cheap, storing surplus for production peaks.

Cost

Cheaper than fossil fuel steam

Stored renewable power lowers gas costs and carbon without carbon capture.

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