Development of load curves for power-to-power system based on hydrogen technology within a residential context

To achieve the ambitious decarbonisation targets of 2030 and 2050, there is a need to diversify energy sources and apply a multi-technological approach aware of the different characteristics of buildings. In this context, the introduction of hydrogen technologies plays a key role, especially if the on-site production of green hydrogen is considered, by means of an electrolyser, and its storage and use by means of fuel cells. This system is identified as a power-to-power system. The presented work focuses on the definition of photovoltaic producibility and electrical load curves describing the behavior of residential buildings, to be used as input data in a simulation model describing the power-to-power system. The starting point is the in-field measurements collected at the Hydrogen Zero Emission Building laboratory owned by the University of Sannio. These measurements concern a whole year of monitoring (from summer 2023 to summer 2024) during which the building was occupied by one or two PhD students. Based on these measurements, a numerical model of the HVAC-building system can be created using dynamic energy simulations, by means of dynamic energy simulations (using EnergyPlus engine). The second step is to calibrate the building model with methods based on standardized protocols, according to ASHRAE Guideline 14. Finally, it is possible to obtain photovoltaic production and electrical load curves, by varying parameters such as climate zone or occupancy. The results are a starting point for developing optimization analyses on the power-to-power system.