The project was realised as a PPP scheme between the local energy supplier MPEC (Miejskie Przedsiębiorstwo Energetyki Cieplnej) and the project company Dobra Energia dla Olsztyna. MPEC is a municipal company owned by the city of Olsztyn and operates the municipal heating plant and the district heating network with a total length of approx. 155 km. Dobra Energia is a joint venture between Meridiam and Urbaser, whereby the latter will also be responsible for operating the plant for 25 years.

"The successful handover of the WtE plant to the customer confirms the quality and reliability of our technologies as well as the excellent cooperation between all parties involved," says Mustafa Kaymakci, Project Manager at Doosan Lentjes. "With the successful completion of this project, we have once again proven that we can deliver innovative solutions for thermal waste treatment at the highest level," adds Kaymakci.

With a capacity of 110,000 tonnes of refuse-derived fuel (RDF) per year, the Olsztyn WtE plant makes a significant contribution to strengthening the local waste management sector and relieving the pressure on landfill sites. The thermal treatment of the waste generates steam, which supplies more than 11 MWe of electricity by means of a turbine. The steam is also used for the city’s district heating network, which means that around 30 % of the local heating requirements are covered without the use of fossil fuels.

The tried-and-tested water-cooled reciprocating grate and the complex systems for generating electricity and district heating ensure maximum energy efficiency. The Circoclean® flue gas cleaning system, including downstream SCR technology for nitrogen oxide reduction, is being used for the first time in Poland. Compliance with the strict European BAT emission standards emphasises the environmental friendliness of the plant.

During the trial operation, which lasted several weeks, all contractually agreed performance and availability criteria were met and the high reliability and stability of the system was demonstrated across the entire output range.

The successful handover of the Olsztyn WtE plant is another important milestone in the success story of Doosan Lentjes in Poland. Following the flagship project Eco-MVA Kraków, the only WtE plant in Poland to date with official Eco certification, Doosan Lentjes is once again setting new standards in thermal waste treatment.