Firebricks Heated by Renewables Could Eliminate 90% of Industrial Fossil Fuel Use

Named among the top 50 innovations of 2024 by Popular Science, firebrick thermal energy storage represents a potential game-changer for industrial decarbonization. A Stanford University study found that if deployed widely, firebricks heated via renewable electricity could eliminate 90% of the fossil fuels heavy industry burns for heat.

The concept is elegantly simple: excess renewable energy from wind and solar is used to heat dense ceramic bricks to extremely high temperatures. The stored heat can then be released on demand for industrial processes that require intense heat, such as steelmaking, cement production, and chemical manufacturing.

“A Stanford University study found that if deployed widely, firebricks heated via renewable electricity could eliminate 90% of the fossil fuels heavy industry burns for heat.”

This addresses one of the toughest challenges in the energy transition: industrial heat accounts for about 10% of global CO2 emissions and has been considered one of the hardest sectors to decarbonize. Firebrick storage could provide a cost-effective solution using existing materials and well-understood technology.