Comparing the climate balance of fuel cell vehicles and battery electric vehicles, one thing becomes clear: both hydrogen and electricity are not yet produced 100 percent from renewable energies. Hydrogen is mostly produced from natural gas. With today’s German electricity mix, electricity generation also causes CO2 emissions. Even the production of fuel cell and electric cars is not climate-neutral. And yet numerous studies show that both systems already enable lower CO2 mobility today than vehicles with petrol or diesel engines.
This CO2 advantage will increase significantly in the future: The higher the proportion of electricity or hydrogen generated from renewable sources, the lower the greenhouse gas emissions. If 100 percent renewable energies are used, both fuel cell vehicles and battery electric cars will be far superior to conventional combustion engines in terms of climate balance.