Imagine a giant, high-tech thermos the size of a shipping container that can hold heat up to 1,300°C. Instead of using expensive materials, it's filled with special beads made from recycled steel mill waste. This allows factories to catch heat that would normally be burned off into the air and save it for later use.
Industrial plants waste 300 TWh of heat annually in the EU because existing storage is too expensive or too large. This results in billions of euros in lost capital and significant CO2 emissions from flare gases.
A modular 20/40 foot container storage system and a patented upcycled ceramic granule for high-temperature heat storage.
If you are an integrated steel mill dealing with flare-gas-stacks that waste energy—this project developed a 30MWh storage module that captures heat at 1,300°C. It turns wasted flare gases into a usable energy resource, reducing CO2 emissions. This allows for heat-to-heat or heat-to-power operations on-site.
If you are a ceramics producer dealing with high energy costs and space constraints—this project developed stackable 60MWh units. These modules provide a cost-efficient way to store thermal energy for industrial processes. The system is designed to last over 30 years.
If you are a cement plant dealing with excess heat that is currently non-economic to convert to electricity—this project developed a patented storage granule. This technology increases storage capacity per cubic meter by a factor of 10. It enables affordable energy conversion and storage in brownfield applications.
The system uses a patented granule made from 85% upcycled blast furnace slag, which reduces the storage price per MWh by a factor of 12.
Yes, the system consists of scalable, stackable units of 60MWh, with specific modules designed as 20/40 foot containers capable of storing 30MWh.
The project utilizes a patented storage granule produced from upcycled blast furnace slag and a self-developed binding agent.
The units are designed as compact container modules to fit space-constrained brownfield premises, though integration requires safety audits due to gas usage.
The system is designed for a long service-life, ideally longer than 30 years, covering 10,000 to 15,000 cycles.
The project is led by a single German SME, Kraftblock GmbH, which maintains 100% industry representation. This lean structure suggests a fast-track commercial focus, moving directly from design to industrial testing at a steel mill without the typical academic lag of university partners.
Contact Kraftblock GmbH in Germany for licensing or deployment inquiries.
Contact us to connect with the Kraftblock team for high-temperature storage integration.
