Impact of Small-scale Storage Systems on the Photovoltaic Penetration Potential at the Municipal Scale

High penetration of grid-connected roof-top photovoltaic power plants (GCRT-PV) is restricted by electric energy grid quality requirements and available storage capacities. This study evaluates how far small-scale storage systems can contribute to increment GCRT-PV penetration at municipal scale. To accomplish this, the GCRT-PV potential of a municipality is calculated in high spatiotemporal resolution and various scenarios of storage systems penetration are evaluated with a series of indicators. The adoption of a low share of storage systems improves energy utilisation, variability and reliability indicators; while an increased penetration of storage systems only marginally improves these indicators.