Electrified Thermal Solutions, Inc. (ETS) is a Boston-based company looking to decarbonize the industrial sector with electric heating and storage technologies.

Their flagship product, the Joule Hive™ thermal battery, turns intermittent renewable electricity into constant industrial-grade heat. It is a stack of electrically conductive firebricks in an insulated container, which may be installed on-site as a drop-in replacement to fossil fuels. The system charges by running electricity directly through the bricks to joule-heat them, circumventing the operating limits of today’s electric heaters.

The same bricks store thermal energy up to 1800C with low thermal loss for hours or days until needed. Discharging the system simply involves running air or another gas through the brick channels to provide constant, high temperature heat to any furnace, boiler, turbine or kiln.

Electrified Thermal Solutions has been awarded $5 million in funding from the Department of Energy in 2024, that will go toward commercializing its thermal battery technology, used to decarbonize industrial heating.

They can either provide heat as a service or sell the thermal batteries (per kWh) and maintain them if required.

Electrified Thermal Solutions core innovation is their storage configuration. They use refractory bricks electrically conductive and able to durably reach flame-like temperatures.

Also, they are able to charge the system quite rapidly but also release the energy steadily, turning intermittent renewable sources to a steady delivery of heat, maintaining as well the temperature of the medium constant.

Industrial heat across most applications

ETS main application of their thermal battery, the Joule Hive is to decrbonize industrial processes.

The Joule Hive Thermal Battery, converts intermittent solar and wind energy into on-demand heat, stored at temperatures approaching 2000 degrees Celsius.

The stored heat can be delivered to industrial furnaces, boilers, or power plants that the Joule Hive is co-located with, enabling a phase-out of fossil fuels across industries.

Being able to release energy between 200 and 18000 C, it can be coupled with ow-temperature to high-temperature heat processes across different industries.