Maximizing Solar Home Battery Systems’ Contribution to the Energy Transition of the Power System

Inhalt:
The implication of increasing self-consumption of residential solar panels by means of home battery systems on the overall energy balance and consequently the carbon footprint is analyzed in this paper. Solar household simulations are conducted for different photovoltaic unit sizes and battery system configurations. The results are fed into a grid simulation of a low-voltage distribution grid, in order to include grid losses and to obtain the results for the entire network. Battery systems’ ability to increase the grid’s hosting capacity is compared to fixed curtailment limits for the feed-in of solar power. Operating battery systems reduce carbon emission if their operating energy losses are sufficiently compensated by either additional installation of solar panels or the reduction of line and curtailment losses. Their performance on carbon reduction is determined by their operation strategies.