New ideas move Vojany TPP a step further

New ideas move Vojany TPP a step further
Solid secondary fuel is significantly cheaper than black coal. Slovenské elektrárne intends to use it in co-combustion at Vojany thermal power plant.

Since April 2019, Vojany thermal power plant (TPP) was producing no electricity. This was due to rising prices of emission permits and other factors in the electricity market, which made electricity generated at the black coal fired power plant too expensive and uncompetitive. In order to avoid closure of the TPP and to maintain employment, Slovenské elektrárne has been analyzing for several months various scenarios and available options for reducing production costs.

During August and the second half of October 2019, the plant tested co-combustion of certified solid secondary fuel based on selected petroleum products and biomass, which has properties comparable to black coal and meets all environmental requirements of the valid Slovak legislation. Solid secondary fuel is significantly cheaper than black coal, which has to be import from the eastern border by rail, thus translating into high operation costs.

The idea of ​​using this solution is also the result of a long-term intensive cooperation of Slovenské elektrárne with the Faculty of Business and Economics of the University of Economics in Bratislava based in Košice and demonstrates the usefulness of linking university programmes with business.

After obtaining the necessary permits, Slovenské elektrárne expects to start operations with coal and new fuel co-firing in early 2020. In the case of Vojany thermal power plant, the company will also reduce dependence on imported primary energy sources and support the circular economy in the region.