Power-to-Gas – A solution for energy storage

Power-to-Gas technology provides a solution for the energy storage challenge created by the increasing deployment of renewable energy. The process relies on the ability to convert electrical energy from renewable sources into chemical energy that can be stored and retrieved at will. In a first step of the process, H2 is generated via electrolysis of water. A catalytic process then produces pipeline grade CH4 using the H2 and CO2, which can be provided from various sources, such as biogas, landfill gas or fermentation off gases. Electrochaea uses a thermophilic methanogenic Archaea as a biological catalyst to generate methane. This Archaea has proven to be robust at large scale and demonstrates a high production rate of CH4. Electrochaea is currently working on a commercial demonstration project in Denmark (www.BioCat-project.com) in which methane produced with our biocatalyst will be injected into the local natural gas grid.