Load commutation for stand alone wind and PV hydrogen energy system

The authors present a renewable energy (RE) system based on production and storage of hydrogen. The principal source of energy is a wind turbine (WT) generating a maximum power of 10 kW. The energy from the WT will be directed to the load while the remaining excess power, when available, will be used to produce and store hydrogen. They also have as secondary power source a photovoltaic (PV) away generating a maximum power of 1 kW. The hydrogen will then be restored to the stand alone site to produce electrical energy, via proton exchange membrane fuel cells (PEMFC) as a load-levelling electrical system, when not enough energy is produced from the RE sources.