A device is provided having a fermentation chamber having one or more inlets to receive a mixed stream to be fermented and an outlet to release fermented product; a distillation vessel surrounding the fermentation chamber having communication with the fermentation chamber outlet to receive fermented product to be distilled and a turbine located within the outlet of the fermentation chamber, the turbine having a rotor rotatable by force of flow of fermented product from the fermentation chamber to the distillation vessel, to generate electricity. A sidewall common to both the fermentation chamber and distillation vessel allows for heat transfer of heat generated from fermentation to the distillation vessel to heat the product to be distilled. A method of fermenting and distilling a product is also provided. The method involves receiving in a fermentation chamber a mixed stream to be fermented; transferring heat energy generated by fermentation to a distillation vessel surrounding the fermentation chamber; allowing pressurized fermented product to flow from the fermentation chamber into the distillation vessel via a turbine and rotating a rotor of the turbine by a force of flow of the fermented product to the distiller to generate electricity.