The Ethiopian Electric Power Corporation (EEPCo) was named in 1997- after serving in the name of Ethiopian Electric Light and Power Authority(EELPA) which was established in 1956. EEPCo is responsible for generating, transmitting, distributing and sale of electric energy throughout the country. The corporation has two electric energy supply systems that are the Interconnected System (ICS) and the Self Contained System (SCS). The main energy source of ICS is hydro power plants and also the SCS are mini hydros and diesel power generators allocated in various areas of the country.