As Head of Sustainable Product Development, Reiner Mangold develops fuels in which CO2 is recycled, like the e-gas. In a first step, a plant uses surplus green electricity to break water down into oxygen and hydrogen. The hydrogen could power one day fuel-cell vehicles. However, in the absence of an area-wide infrastructure, a second process step is carried out directly: methanation. The hydrogen reacts with CO2 to produce synthetic methane, also known as e-gas. This can be distributed to the CNG filling stations via an existing infrastructure, the natural gas network.