Solar-hydrogen residential power system considering seasonal weather variations

This paper discusses site residential power plants composed of a photovoltaic (PV) field and a hybrid storage system which combines hydrogen storage and batteries. In particular, a site power plant sized to supply a domestic demand of a typical 80 m2 was considered. In order to obtain extrapolable results, the domestic demand is calculated utilizing a US Department of Energy benchmark designed to track progress toward multi–year,whole house energy savings and site power production. The benchmark house is located in Seville (Spain), utilizing real solar irradiation and temperature data. Also, a model–based optimization was performed for a whole year in order to obtain optimal system sizing. Results show in a very detailed way how the domestic energy demand, the electricity produced by the PV field, the stored hydrogen amount and the battery utilization change optimally through the year due to seasonal weather variations.