industrial-process-heat
(2)
Brillouin Energy
Brillouin Energy is an Emeryville, California clean-technology company developing thermal energy systems based on Low Energy Nuclear Reactions (LENR). Its patented Controlled Electron Capture Reaction (CECR) process uses small amounts of hydrogen, nickel and electricity to generate heat via its Hydrogen Hot Tube (HHT) reactor and proprietary Q-Pulse control system, with helium as a negligible byproduct and no carbon emissions or radioactive waste. Founded in 2009 by Robert Godes, the company aims to commercialize licensable, ultra-clean heat for industrial process, district energy and distributed power applications.
Caldera
Caldera is a UK clean-energy company decarbonizing industrial heat with Warmstone, a thermal battery built from recycled aluminium and volcanic rock inside vacuum-insulated heat cells. Its electric Storage Boiler converts cheap off-peak renewable electricity into industrial steam and hot water up to roughly 200C, offering factories a zero-emissions alternative to gas boilers. Founded in 2017 in Fareham, England, Caldera closed a 10M pound Series A led by Germany's GEA Group in 2025 and landed its first commercial order from the NHS.