April 2, 2026
Industrial heat
goes electric.For cement.
The first commercial-scale Joule Hive™ Thermal Battery is online — delivering zero-carbon heat from electricity stored in a brick. This is the only pathway for industry to obtain its energy needs cheaper than gas.
THE PROBLEM
Industrial heat runs on fossil fuels.
Electricity can make it cheaper.
25%
of global CO₂ emissions
come from industrial heat — the largest decarbonization gap left. Steel, cement, chemicals, and glass all need it hot.
1,800°C
needed by heavy industries like steel, cement and chemicals.
To replace natural gas, thermal storage needs to be air-compatible, plug into 480 V to 100 kV industrial power, and deliver continuous hot gas output at flame temperatures.
4–10h
of cheap power, wasted daily
Renewables produce more electricity than the grid can absorb. BESS or electrolyzers can’t convert excess renewables into heat economically.
HOW THE JOULE HIVE WORKS
Three steps. Industrial-scale heat, cheaper than natural gas.
Electricity in. Heat out. The Joule Hive Thermal Battery converts off-peak power into 1,800°C heat — stored in our electrically-conductive E-brick and delivered to any furnace, boiler, or kiln.
01 CHARGE
Run electricity through the bricks.
For 4–10 hours a day, when electricity is at its cheapest, current flows directly through our E-bricks — joule-heating them up to 1,800°C at 100% efficiency. Our bricks are compatible with 480 V to 100 kV electricity.
02 STORE
Hold the heat at 1,800°C.
The insulated brick stack stores thermal energy at industrial temperatures — for hours, around the clock, with >98% round-trip efficiency.
03 DISCHARGE
Deliver clean heat on demand.
Air, CO₂, or process gas flows through the brick channels, picks up heat, and feeds your furnace, boiler, kiln, or turbine — 24/7.