With the entry into operation of a 50-kilowatt PEM, Proton Exchange Membrane, technology electrolyser and 270 solar panels, located in the Cartagena Refinery, the Ecopetrol Group began its first green hydrogen production pilot project In colombia. The pilot, which will run for the next three months, uses industrial water from the refinery to produce 20 kg of high-purity green hydrogen (99.999%) daily. This test will allow gathering information on the operation, maintenance, reliability and scalability of the technologies used. At the end of the pilot at the refinery, other tests will continue at the operations of the Ecopetrol Group.The main objective of the pilot is to evaluate the technical and environmental feasibility, as well as the performance of green hydrogen generation at the Cartagena Refinery. It will also serve to determine the impact on the use of inputs such as water and electricity. The green hydrogen produced in the pilot will serve to improve the quality of the fuels produced in the refinery, for which gray hydrogen is currently used.The Ecopetrol Group advances in the acquisition of two electrolytic hydrogen generation systems with recharging stations for bus and vehicle mobility applications. These initiatives are expected to be underway in early 2023.