General introduction and presentation of the activities and work at Fraunhofer ISE/Chile along the green hydrogen value chain, including green ammonia. Presentation of our Power-to-MEDME Project, (Production of Green Methanol and DME), for Hydrogen, Methanol and DME production in Northern Chile, using DiMethyl-Ether as E-Fuel for Mining and also alternative Hydrogen carrier. Project co-funded by BMBF and BMWK from Germany, developed jointly with Chilean and German industrial and applied research partners.