SaltX Technology AB is a Swedish energy technology company focused on thermal energy storage and industrial electrification. Based in Stockholm, it develops salt-based, high-temperature storage solutions that convert surplus renewable electricity into storable heat and release it on demand for industrial processes and district energy systems. The company targets decarbonization of heat-intensive operations by enabling stable, dispatchable heat from intermittent renewable sources.
SaltX’s core approach uses nano‑coated salts—commonly calcium oxide—in a thermochemical cycle to store energy with high density and minimal losses over time. Its systems are designed to deliver high‑grade heat (e.g., hot air or steam) for applications such as process heat, grid balancing, and integration with combined heat and power or district heating networks. The company also develops electric calcination technology aimed at reducing CO₂ emissions in sectors like lime and cement by replacing fossil-fueled kilns with electrically powered, high-temperature reactors.
Pre-engineering covers preheating/cooling layout and multi-stage cyclone preheater with cyclone-flash cooling. Material tests validate thermal behavior for electrified, low-emission quicklime pilot.
Developing a pilot plant for electric arc calcination to boost lime production efficiency, reduce emissions, and enhance Nordic industry resilience.
The partnership aims to develop electrified production facilities using Electric Arc Calciner technology for emission-free processes in cement, lime, and CO2 capture.
Developing a flash calcination plant in Norway, focusing on preheating and cooling systems, to enhance lime production efficiency and reduce emissions.
The project uses SaltX tech for CO2-free lime production, with a 2027 completion target and 40,000-ton capacity, backed by EUR 24M from Enova.
