German utility Uniper has started producing methane gas derived from wind power and feeding it into gas pipeline networks at its Falkenhagen site as the country seeks wider uses for renewable energy. The step, part of the European energy project called STORE&GO, demonstrates that it is feasible to produce entirely green energy with qualities identical to natural gas, Uniper said in a statement. The plant was set up six years ago, initially producing green hydrogen by using electrolysis, which involves running wind power through water to split it into oxygen and hydrogen in a process known as power-to-gas. In another step, methanation, CO2 from a bio-ethanol plant has been mixed with hydrogen to create a gas-like substance for the past […]