TotalEnergies has signed an agreement with the German developer RWE to supply 30,000 tons a year (tpy) of green hydrogen to the German Leuna refinery for 15 years, marked as the largest quantity of green hydrogen ever contracted from an electrolyzer in Germany. TotalEnergies said on Wednesday that green hydrogen will be produced by a 300 MW electrolyzer, built and operated by RWE in Lingen, and its storage will be provided locally. Then, it will be transported through a 600 km pipeline straight to the refinery, ultimately preventing around 300,000 tons per year of CO2 emissions from the site starting in 2030.