Municipal and industrial waste is generated at HEP's sites as a result of production processes. According to its characteristics, waste is is classified as non-hazardous and hazardous waste.
In 2018, the HEP Group produced a total of 1,455.49 tons of hazardous waste and 71,694.79 tons of non-hazardous waste. The amount of hazardous waste was reduced by 2,248.5 tonnes compared to the previous year, as less hazardous waste was produced compared to 2017 due to rehabilitations and overhauls, while the quantities of non-hazardous waste increased slightly as a result of forest biomass fired power plants being put into operation in 2017.
For waste generated in the HEP Group, electronic records have been kept since 2009 in HEP’s database INFOZOK (Environmental Information System) according to types, quantities and locations of waste generation. Waste generated at HEP's sites is handed over to authorized waste management companies. Prior to handing over to authorized companies, waste is separated at the place of origin and stored in temporary storage facilities built in accordance with the provisions of the Ordinance on Waste Management and the by-laws regulating the management of special categories of waste. HEP reports on the quantities and types of waste once a year via electronic database of the Environmental Pollution Register. No significant pollution caused by waste generated in the HEP Group has been recorded.
The location of Plomin thermal power plants houses HEP's only landfill for non-hazardous waste. It is used solely for disposal of own waste produced in the process of electricity generation from coal. Waste generated by Plomin thermal power plants is managed in accordance with the order of priority in waste management, and part of the waste is handed over to companies holding a license for waste recovery, pursuant to market demand, where it is used as a substitute for mineral raw materials. In 2018, 10.742,12 tons of non-hazardous waste was deposited at the internal landfill in Plomin, which represents a decrease compared to the previous year due to Plomin 1 TPP being out of operation.