Impact of DG and energy storage on distribution network reliability: A comparative analysis

This paper discusses possible benefits of coordinated deployment of renewable-based micro-generation (MG) systems and energy storage schemes on reliability performance of distribution networks. Particular attention is given to continuity of supply of low voltage residential customers and potential scenarios to improve service quality by reducing the frequency and duration of customer long interruptions. Detailed network representations and improved models of aggregate loads and distributed generation/storage systems are used to assess the variable behaviour of domestic power demands and renewable energy resources. The conventional Monte Carlo Simulation (MCS) analysis is extended with an empirical probabilistic model of network faults, in order to estimate both system and customer-related reliability indices in the most realistic manner.