Sizing and grid integration of residential PV battery systems

This paper analyses residential PV battery systems in order to gain insights into their sizing and grid integration. For this purpose a simulation model was developed and system simulations on a timescale of one minute were performed. Furthermore, a sensitivity analysis was conducted varying the PV system and battery size to identify appropriate system configurations. Based on the simulation results, an economic assessment of PV battery systems was carried out and the cost-optimal configurations for various cost scenarios were determined. Another focus of this paper is the integration of PV battery systems into the electricity grid. The impact of different operation strategies on the peaks and ramps of the feed-in power is analysed. The results show that forecast-based operation strategies are able to improve the grid integration of PV battery systems.