The current research presents a renewable energy technology related to hydrogen fuel and its optimal utilization; the EES simulation software was used to study each unit of the system. An electrolysis cell is used to produce hydrogen, which is then injected into a (PEM) fuel cell is used to produces electrical power, pure water, and a quantity of heat in the exhaust. This heat is then injected into an absorption refrigeration system (LiBr–H2O) type for cooling purposes. The results showed that the best operating conditions were at (90 °C), with a cooling temperature of (7 °C). The voltage of PEM fuel cell was (0.46 V) and electrolysis cell (1.83 V), and the power output of the fuel cell was (0.6464 W) and the electrolysis (1.101 W). The coefficient of performance for the absorption refrigeration system was very good, approximately (0.7185), The findings demonstrate that integrating hydrogen energy systems with absorption cooling significantly enhances overall energy utilization and system efficiency.................... Keywords:.................. The PEM fuel cell, The absorption refrigeration system, Bromide lithium (LiBr-H2O), The Hybrid Cooling System.