The article discusses energy sector competitiveness in Poland. The authors ask if all conditions were fulfilled to speak about competitiveness among the energy enterprises. As the result of energy market liberalization the customers who purchase energy can switch to different deliverers of energy. Theoretically the clients can choose the best solution but in practice the energy prices depend on government administration - Energy Regulatory Office. Electric energy is indispensable in everyday life as we use it to produce everything. Hence, the energy price is the most important factor which determines competitiveness of economy. Therefore, everything is to be made to increase the energy companies' effectiveness. .