Emission is the process of emitting i.e. inserting pollutants into the air. In Croatian legislation, emission is shown as the mass of pollutants in milligrams (mg) per cubic meter of standardized air (mn3
), i.e. mg/ mn3
HEP’s sources of pollutants in the air are the following:
- Thermal power plants and cogeneration plants of HEP-Proizvodnja - TE Plomin 1, TE Plomin 2, TE Rijeka, TE-TO Sisak, KTE Jertovec, TE-TO Zagreb, EL-TO Zagreb and TE-TO Osijek
- Boiler rooms of HEP-Toplinarstvo d.o.o. for the generation of heat energy for customers in the cities of Zagreb, Sisak, Osijek and a part of the Zagreb County
- Boiler rooms for heating own business offices of HEP-Operator distribucijskog sustava.
Pollutants emitted into the air from HEP’s sources are:
Types of pollutants
Overview of pollutants per generation unit (t/GWh) for the period between 2010 and 2015:
- Sulfur-dioxide (SO2)
- Nitrogen-oxides (NOx)
- Carbon-monoxide (CO)
- Carbon-dioxide (CO2)
- Solid particles
||Solid particles (PM10) t/year
For each of the emitted pollutants emission limit values (ELV) have been prescribed, and these values cannot be exceeded during normal operation.
Measuring emissions of pollutants into the air is conducted through the first, temporary, continuous and special measuring at the exhaust/chimney. Legal regulation defines the frequency of measuring pollutants into the air.
Emission of pollutants into the air from HEP’s thermal power plants and cogeneration plants are continuously measured through automatic measurement system (AMS), and the information is transferred via computer network into the Information system for monitoring pollutant emissions from stationary sources
, managed by the Croatian Environment Agency (HAOP).
Emissions from boiler rooms of HEP-Toplinarstvo
d.o.o. for heating cities and from boiler rooms for heating own business offices of HEP-Operator distribucijskog sustava d.o.o.
are measured temporarily.
Ozone depleting substances and fluorinated greenhouse gases
Ozone depleting substances (ODS), i.e. controlled substances are found in cooling equipment, air conditioners and fire extinguishers. In line with legal regulations records are kept in HEP about the amount and use of controlled substances and the emission check is carried out by authorized service providers with the permit from the Ministry of Environmental and Nature Protection.
In HEP-Operator distribucijskog sustava d.o.o.
records are kept about the amounts of fluorinated greenhouse gas SF6
(sulfur-hexafluoride), which is being used, and pursuant to legal regulations, the information is sent annually to the Ministry of Environmental and Nature Protection.
Supervision and reporting
Information about the amounts and types of air pollutants, the kind and amount of used fuel for the generation of electricity and heat energy as well as power steam from HEP’s sources with the capacity stronger than 100kWh are entered into the Register of Environmental Pollution
managed by the Croatian Environment Agency.
The Ministry of Environmental and Nature Protection carries out coordinated inspection controls and publishes annual reports
about their results, which include reports about inspection controls at HEP’s locations.