Image of an ESPRYX module, the Evonik brand name for the thermoelectric generator (TEG) modules. Such modules come out from the manufacturing process developed at Evonik Creavis GmbH. The proces is automated, flexible and cost efficient.


ESPRYX™ modules open the door to a future of possibilities

The first generation of modules has used the well-established thermoelectric material bismuth telluride (Bi2Te3) with its high Seebeck coefficient and good temperature stability as the active material. For future module generations other thermoelectric materials can be used, thanks to the compatibility of the production process. 
ESPRYX™ modules are versatile, robust, high-temperature resistant, can be produced in customized sizes, planar shapes, and performance. And thanks to the continuous and automatized production process such modules can be produced on a commercial scale. 

Deep purpple sphere in center of boxes to represent the unique selling proposition of our product

What makes the ESPRYX™ modules special?

ESPRYX Module Specifications Plot

Exemplary data sheet for the first generation of ESPRYX™ modules