Challenges in distribution grid with high penetration of renewables - D5.1 INVADE H2020

This document gives an overview of the main grid challenges caused by distributed generation, and how flexibility services from stationary and mobile batteries can be utilized to revile such problems. In this context, we have reviewed official documents and the literature of power systems to address the problems caused by distributed energy resources (DER) and the solutions proposed to solve these issues. The increasing diffusion of DERs in the distribution networks can change power flows, which eventually leads to operational issues, i.e., odd voltage profiles, overloaded components, decreased short circuit power and incorrect operation of protection systems. Therefore, from the DSO perspective, it is extremely important to estimate the available capacity of electrical networks or the so-called distribution grid hosting capacity