Electrified Thermal Solutions and HWI, A Member of Calderys, Partner to Transform Industrial Heat
July 24, 2025
Strategic collaboration on conductive firebrick manufacturing addresses one of the worlds most pressing challenges for industrial electrification by offering a unique energy storage solution
BOSTON, July 24, 2025 /PRNewswire/ Boston-based
Electrified Thermal Solutions, a leader in electrified heating and thermal energy storage solutions, and
HWI, A member of Calderys, one of the leading suppliers of refractory products and services in the United States, today announced a strategic manufacturing partnership. The collaboration will develop and produce electrically conductive firebricks (E-bricks) which will be used in Electrified Thermals Joule Hive Thermal Battery.

The Joule Hive Thermal Battery takes in electricity, then converts and stores it as heat through the E-bricks at temperatures up to 1,800°C (3,275°F), hot enough to power even the most demanding industrial processes. This capability allows customers to deliver
consistent, high-temperature heat using renewable electricity at lower cost than traditional fossil fuels.
The E-bricks will be manufactured at HWIs production facilities, combining Electrified Thermals technology, developed at MIT, with HWIs 160 years of refractory expertise. By leveraging this strategic collaboration, Electrified Thermal and HWI will demonstrate a viable pathway to reduce costs and mitigate emissions across energy-intensive industries. Electrified Thermals first commercial-scale demonstration is expected to be operational in 2025, with the goal of deploying 2 gigawatts of electrified thermal power by 2030.
Industrial heat represents one of the most challenging frontiers in the worlds effort to address climate change. The majority of energy used annually for industrial heating worldwide comes from burning fossil fuels, said Daniel Stack, Co-Founder and CEO of Electrified Thermal Solutions. To make a meaningful impact at global scale, we needed a solution that could be produced rapidly through existing supply chains. Our partnership with HWI transforms what could have been a manufacturing bottleneck into a powerful scaling advantage, allowing us to meet the multi-gigawatt demand were seeing from industrial customers worldwide.
Ben Stanton, Director, Applications Technology for Thermal Markets, EEC and C/I Network, at HWI, highlighted the technical synergy behind the partnership: For generations, HWI has been developing advanced refractory solutions for the most demanding applications in industry. Electrified Thermals E-Brick material is a breakthrough in refractory technology that maintains the high-temperature durability required by customers, while also generating the heat to run their processes. This partnership aligns perfectly with our Groups commitment to supporting our customers through their energy transition journey.