Integration of distributed generation in the networks of Latvian power system

Distributed (dispersed) generation (DG) entities are private and operated independently upon the main grid in Latvia. In the paper the impact of connected DG to the distribution network is analysed in regard to network operation modes and network operation parameters: voltage losses, power flows and overflows, energy losses per year etc. As research objects private electric power plants have been analysed: hydro, wind and co-generation plants in Western electric distribution network of the Latvian power system (WEN). The results of the research are of essential significance and not only for Latvia but in general for any analogue power system.