Several countries are undergoing a considerable
development of distributed generation (DG). Hence,
Distribution System Operators (DSO) are coping with
unprecedented technical issues which force introducing new
connection rules for customers that produce energy. This work focuses on voltage control issues of distribution systems with inclusion of distributed generation. A review of the standards that have been recently introduced is accompanied by a discussion on simulation results based on a real-world distribution grid. All simulations are solved with DOME, a novel Python-based software tool.