Kostolac B power plant (B1, B2), Serbia
The Kostolac B power plant, consisting of 2 units of 350 MW each, first entered into operation in 1987. In 2021, the plant delivered 4,320 GWh of electricity to the grid, nearly 20 per cent of the country’s coal-based generation.

Stay informed
We closely follow international public finance and bring critical updates from the ground.
Background
Serbia’s energy utility EPS secured financing for a complete overhaul of Kostolac B1 and B2 in December 2011. A USD 293 million loan was taken by the Government of Serbia on behalf of EPS from China Exim Bank to equip the two units with flue gas desulphurisation (de-SOx) technology and bring the plant’s SO2 emissions in line with the Large Combustion Plant Directive. This should have been done by the time the Directive entered into force in January 2018. The company contracted for the works was the China Machinery and Engineering Corporation (CMEC), the same company which is building a new unit at Kostolac B.
The works were finalised in July 2017, according to the Government. However, EPS’ 2018 Environmental Report shows that the application for a construction permit for the de-SOx installation was submitted only in November 2018 – more than a year after the opening ceremony for the facility. The permit was actually rejected twice – once in December 2018 and once in January 2019 – although the grounds on which rejections were issued by the Serbian authority are unknown.
The only explanation we received at the time from EPS and the Serbian Ministry of Energy and Mining was that the gypsum landfill was not ready for the de-SOx to start operation.
In December 2019, EPS launched a public consultation for an ‘updated’ Environmental Impact Assessment (EIA) report for the desulphurisation unit at Kostolac B, and public consultations were held in January 2020. The decision approving this new EIA for the already built de-SOx facility was made in August 2020.
In April 2021, the Ministry of Mining and Energy announced that in fact the facility has been operating in testing mode since October 2020 but annual emissions in 2020 were much higher than those in the previous year. Kostolac B released 95,097 tonnes of SO2 in 2020, which was enough to breach the national – not plant level – 2020 ceiling for this pollutant by 1.74 times.
In 2021, the plant finally started to decrease its sulphur dioxide emissions, yet as of early May 2022 still did not yet have an operating permit, and it is not clear why. It emitted 26,015 tonnes of SO2 – a significant reduction compared to 95,097 tonnes in 2020 – but still 1.6 times as much as allowed.
Latest news
369 million euros of North Macedonia’s public money going up in smoke
Blog entry | 30 January, 2023North Macedonia’s government, through the state-owned energy production company AD ESM, has spent hundreds of millions of euros on imports of coal, heavy oil and fossil gas to keep the country’s fragile energy system going during the energy crisis. The result is a significant increase in emissions of air pollutants and serious damage to the environment and public health.
Read moreRomania U-turns on decarbonisation to expand a lignite mine in Gorj and wipe out 106 hectares of forest
Press release | 13 January, 2023The Romanian government is again acting contrary to its EU commitments.
Read moreLet the sunshine in: how a coal region in North Macedonia can switch to sustainable heating
Blog entry | 21 December, 2022The government in North Macedonia wants to link the 40 year old REK Bitola power plant to the regional heating system. But cementing the dependence on fossil fuels would be reckless. Instead, a new study finds that fitting houses in Bitola with air conditioning and solar panels could keep people warm, cut air pollution and even shield against increasingly volatile energy prices. Such households forming energy communities, the study shows, could not only lower initial investments but even generate them some income.
Read moreRelated publications
Chinese-built coal projects in Europe
Briefing | 14 September, 2020 | Download PDFA real and immediate threat to the EU’s decarbonisation efforts
Comply or Close 2020
Report | 23 June, 2020 | Download PDFIn 2016 alone, roughly 3900 people in the region and in neighbouring countries are estimated to have died as a result of chronic pollution from all existing coal plants. This report is an update of an analysis released by Bankwatch late last year, now including 2019 data.
Alarming levels of air pollution in settlements in coal regions are choking Central and Eastern Europe
Briefing | 4 March, 2020 | Download PDFBankwatch’s ongoing air pollution campaign added six more locations to its independent particulate matter monitoring to provide on-the-ground data from these major polluting locations.