Zero carbon industrial heat
Caldera's Storage Boilers convert renewable electricity into reliable industrial steam, helping manufacturers cut gas use, reduce exposure to volatile energy prices and electrify process heat without oversizing grid connections.
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Electrification doesn’t have to mean higher bills
Whether your goal is a positive ROI or the lowest-cost path to full electrification, the right system design makes all the difference. Caldera can model your steam demand and find the best payback, including considering hybrid systems alongside gas boilers or heat pumps.
Storage Boilers can often achieve a positive payback by charging off-peak, earning revenues from balancing the grid, maximising use of an existing grid connection and minimising thermal losses.
Electric boiler systems for industrial steam
Caldera’s Storage Boiler is an electric boiler with integrated thermal storage and intelligent controls. At the heart of the system is Caldera’s proprietary technology, combining advanced storage materials with vacuum insulation to deliver high efficiency and minimise heat losses.
Designed for rapid installation and easy integration into existing steam systems, our turnkey solutions offer a practical path to affordable industrial steam decarbonisation.
Applications across sectors
Industrial sites can electrify steam without replacing the equipment their process already relies on. Caldera's Storage Boilers are relevant across all steam-using sectors including food and beverage, brewing, distilling, pharmaceuticals, chemicals, and paper and packaging.
Generates steam up to 16 barg (204°C)
Fits retrofit or new build projects
Enables full or partial electrification
GEA invests in Caldera
GEA reinforced its commitment to decarbonizing industrial heat by investing in Caldera in March 2025. This partnership brings together GEA’s global process and heating expertise with Caldera’s innovative electric Storage Boilers, enabling a holistic electrification solution for process heat. When combined with GEA’s heat pumps, the complementary system supports the decarbonization of industrial steam demand—typical in sectors such as food, beverage, and pharmaceuticals.
Tackling key challenges
Caldera’s Storage Boilers are a type of Electro Thermal Energy Storage (ETES) and effectively tackle a range of interconnected global issues.
Over 20% of global greenhouse gas emissions come from making industrial heat
Lower cost clean heat help businesses cut emissions without increasing consumer costs.
Electricity grids need flexible loads to help match variable generation with demand.
Grid capacity is often limited at peak times, while spare capacity sits unused off peak.
Discuss your steam system
The Caldera team can model your heat demand, assess integration
with your existing setup, and talk through system design.
