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  • Natural environment issues – Enea Wytwarzanie

    Systemic Power Plants Segment

    Pursuant to IED Directive, stricter standards of pollution emissions have been in effect since 1 January 2016. The postponement of their effective date was ensured through the derogation mechanism stipulated in the Directive in the form of the Transitional National Plan (TNP) which is binding from 1 January 2016 to 30 June 2020.

    During the participation in TNP, it is necessary to keep annual mass limits for pollutions reported for derogation by the plant operators (pursuant to the Regulation: Journal of Laws 2015 item 1138, as amended); also, the emission standards effective as at 31 December 2015 apply. In the light of the rules of TNP operation, it is possible to settle the allocated limits together with other members of the Group: within Enea SA Group, Kozienice Power Plant has shared settlements with Białystok Heat and Power Plant in terms of SO2 and dust limits. Participation in TNP enables the Company to optimise expenses related to air emissions.

    As from 1 January 2018, stricter standards of NOx emissions (pursuant to IED Directive) will apply due to the fact that the Treaty of Accession derogation period has ended on 31 December 2017. In order to reduce the nitrogen oxides emissions to the air, the nitrogen oxide selective catalytic reduction (SCR) plant has been gradually constructed since 2013 at Kozienice Power Plant. As at the end of 2017, SCR plant was installed in 200 MW power units, save for the power unit No. 3 where it is not planned to install the SCR plant for economic reasons. In the years 2018 and 2019, it is planned to install the SCR plant in 500 MW power units No. 10 and No. 9, respectively.

    Desulphurisation of all flue gases with the use of the FGD I-IV plant offers the warranty of keeping the mass limit on pollution emissions as per TNP and meeting the emission standards set out in IED Directive. The proper operation of the installed ESP plants and their successive replacement for high-end highly efficient plants together with the second stage of dedusting which is guaranteed by the operated FGD plants ensures the achievement of the applicable dust emissions standards. The replacement of ESP plant in the power unit No. 9 is planned for 2019.

    On 20 December 2017, the Power Unit No. 11 (1 075 MW) was commissioned. The initial measurements performed during its acceptance procedure have demonstrated that the unit reaches all acceptable pollution emission values specified in the integrated permit.

    Investment operations implemented in order to meet the requirements of Directive 2010/75/EU on industrial emissions (IED) – Kozienice Power Plant

    Unit Generating capacity (MW) Denitrification installation
    (compliant with IED < 200 mg/Nm3)
    Denitrification installation
    (compliant with IED < 200 mg/Nm3)
    Dedusting equipment
    (electrostatic precipitators) (compliant with IED < 20 mg/Nm3) mg/Nm3)
    2014 2015 2016 2017 2018 2019 2014 2015 2016 2017
    derogation period
    B1 228             50% of attainable capacity covered with FGD operation 100% of attainable capacity covered with FGD operation    
    B2 228              
    B3 225                
    B4 228                
    B5 228              
    B6 228              
    B7 228                
    B8 228              
    B9 560                
    B10 560                

    Within the requirements specified by the IED Directive, as well as BAT conclusions planned for implementation from 18 August 2021 (kBAT) – Enea Wytwarzanie has been consistently for many years realising the specified schedule of adaptation investment activities.

    In 2017 the following activities were conducted at Kozienice Power Plant:

    • activities related to the adjustment of Enea Wytwarzanie sp. z o.o. to the requirements of the BAT conclusions,
    • further catalytic flue gas denitrification installations (SCR) were built on two 200 MW units No. 4 and 8 (with achievable concentrations below 100 mg / Nm3) to significantly reduce nitrogen oxides.

    The flue gas denitrification installation on the 500 MW unit No. 10 is at its final stage of implementation. In 2018, the SCR installation is planned for the remaining 500 MW unit No. 9.

    The SCR installations gradually developed until 2019 provide the Company with the possibility to comply with the requirements of the IED Directive as well as future requirements arising from the BAT conclusions.

    Water consumption in energy generation process
    99.7%

    of collected water is reverse intake. Kozienice Power Plant does not use underground water for production purposes.



  • Natural environment issues – Enea Elektrownia Połaniec

    Enea Elektrownia Połaniec S.A. takes advantage of the natural derogation stipulated in IED Directive with respect to power unit No. 1. Throughout the derogation period, i.e., from 1 January 2016 to 31 December 2023, the operation of the power unit No. 1 is limited to 17 500 hours. A total number of 4 736 hours was used from the available limit of 17 500 hours, of which 2 189 hours were used in 2016 and 2 547 hours in 2017. As at 31 December 2017, the number of hours still to be used is 12,764. A decision on reporting the power unit No. 1 for natural derogation was made because it was impossible to perform desulphurisation of all operating power units No. 1-7 at the same time.

    Under Phoenix project whose objective was the upgrade of the Power Plant production capacity and adjusting power units No. 2-7 to the IED Directive requirements, the following improvement of power unit efficiency was achieved:

    Power Unit No. 2 – 242 MW, ISO net efficiency: 38% (before upgrade: 226 MW, efficiency: ca. 36%)
    Power Unit No. 3 – 242 MW, ISO net efficiency: 38% (before upgrade: 223 MW, efficiency: ca. 36%)
    Power Unit No. 4 – 242 MW, ISO net efficiency: 38% (before upgrade: 225 MW, efficiency: ca. 36%)
    Power Unit No. 6 – 242 MW, ISO net efficiency: 38% (before upgrade: 221 MW, efficiency: ca. 36%)
    Power Unit No. 7 – 239 MW, ISO net efficiency: 38% (before upgrade: 221 MW, efficiency: ca. 36%)

    The improvement in power efficiency translated to a reduction in bituminous coal consumption by approx. 14g/KWh (approx. 3%) and a decrease in CO2 emissions. Under the project, the flue-gas desulphurisation (FGD) plant was modernised, whereas the power units No. 2, 3, 6, and 7 were equipped with the nitrogen oxide selective catalytic reduction (SCR) plant. At present, the process of SCR installation in power unit No. 4 is underway. Also, the implementation tendering procedures for Phoenix project in power unit No. 5 has already started.

    Pollutant concentration in Połaniec Power Plant in 2017

    Dust lower by

    20%

    than the acceptable concentration

    • SO2 lower by 16% than the acceptable concentration
    • NOx lower by 21% than the acceptable concentration



    Investment operations implemented in order to meet the requirements of Directive 2010/75/UE on industrial emissions (IED) – Połaniec Power Plant

    Unit Attainable capacity (MW) SCR installation
    (compliant with IED < 200 mg/Nm3)
    FGD installation
    (compliant with IED < 200 mg/Nm3)
    Dedusting equipment (electrostatic precipitators)
    (compliant with IED < 20 mg/Nm3
    2016 2017 2018 2019 2016 2017 2016 2017
    B1 225 Unit covered by natural derogation of 17 500h Derogation of 17 500h Derogation of 17 500h
    B2 242          
    B3 242          
    B4 242          
    B5 225          
    B6 242          
    B7 239          
    B9 205 emissions below IED norms (flue gases do not undergo denitrification) emissions below IED norms (flue gases do not undergo desulphurisation)  
    THE MAIN EFFECTS OF IMPLEMENTED ENVIRONMENTAL ACTIVITIES:
    • Improved desulfurization efficiency by installing a formic acid dosing system.
    • Equipping units No. 2, 3, 6, 7 with SCR catalysts, resulting in a reduction of nitrogen oxide emissions from about 500 mg/Nm3 to below 200 mg/Nm³. Currently, the SCR catalyst installation process is being carried out at unit No. 4. A tender procedure for the Phoenix project has been launched for unit No. 5.
    • Increasing environmental awareness of the employees of the Power Plant, the subsidiary, contractors providing services to the Power Plant and students of nearby schools.

    ENVIRONMENTAL EDUCATION ACTIVITIES

    In 2017, the following activities were carried out at Enea Elektrownia Połaniec S.A.:

    • A meeting with local government authorities of neighbouring municipalities, county and province.
    • The ninth edition of Ecological Contest, which aims to promote knowledge of environmental protection and legal regulations on environmental issues among employees of the Power Plant and its Bioenergia subsidiary.
    • The second edition of the art contest for neighbouring primary schools designated for children. The aim of the competition is to promote knowledge about the Power Plant and undertaken environmental activities. The subject of the contest is „The Power Plant for the environment, the environment for the Power Plant".
    Water consumption in energy generation process
    99.7%

    of collected water is reverse intake.
    Kozienice Power Plant does not use underground water for production purposes.

  • Transitional National Plan

    The stricter emissions standards introduced by IED Directive may be postponed by taking advantage of the TNP derogation referred to in Article 32 of IED Directive (implementation to the Polish law through Article 146c of the Environment Protection Law Act, Journal of Laws 2001 No. 62 item 627, as amended). Kozienice Power Plant and Białystok Heat and Power Plant confirmed their participation in TNP in terms of emissions of: SO2, dust – Kozienice Power Plant and SO2, dust, and NOx – Białystok Heat and Power Plant.

    Derogation from the emission standards for the sources covered by TNP is effective from 1 January 2016 to 30 June 2020, which means that the standards effective as at 31 December 2015 shall apply in this period (for Kozienice Power Plant: dust - 50 mg/Nm3, SO2 – 1 200 mg/Nm3 for five 200 MW power units, and 400 mg/Nm3 for other power units). Pursuant to the Environment Protection Law Act, the Minister of Environment issued Regulation of 21 July 2015 on the requirements relevant for the implementation of the Transitional National Plan (Journal of Laws 2015 item 1138, as amended) which determines the substance mass limits for the sources covered by TNP for the years 2016-2019 and for H1/2020 that become smaller each year.

    Enea Wytwarzanie sp. z o.o. settles the emission limits allocated for the pollutants reported to TNP as follows:

    • in terms of sulphur dioxide and dust emissions: Kozienice Power Plant together with Białystok Heat and Power Plant,
    • in terms of NOx emissions: Białystok Heat and Power Plant individually.

    The table below presents pollution emission under TNP for 2017 and the degree of utilisation of maximum annual emission limits.

    Plant S02 Pył NOx
    [Mg] % Utilisation [Mg] % Utilisation [Mg] % Utilisation
    Kozienice Power Plant emissions 8 583.89 68.5 211.26 14.1 - -
    annual max. limit 12 522.50 1 502.70
    Elektrociepłownia Białystok emissions 1 525.20 57.2 58.72 27.2 297.04 22.0
    annual max. limit 2 666.56 215.69 1 347.75
    Total emissions 10 109.09 66.6 269.98 15.7 297.04 22.0
    annual max. limit 15 189.06 1 718.39 1 347.75

    For TNP purposes, emissions (calculated pursuant to the Commission Implementing Decision of 10 February 2012 laying down rules concerning the transitional national plans referred to in the Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions (2012/115/EU)) do not form the grounds for charging the fees for commercial use of the environment.

  • Heat Segment

    Enea Wytwarzanie in the Heat Segment (Białystok Heat and Power Plant) has implemented the following investments until now which affect the volume of emissions:

    • conversion of coal-fired OP-140 boiler No. 5 to biomass fluidised bed OFB-105
    • conversion of coal-fired OP-140 boiler No. 6 to biomass fluidised bed OFB-105
    • the SCR installation on OFB-105 boilers No. 5 and 6
    • the SCR installation on OP-230 boilers No. 7 and 8
    • heat recovery system on K6 boiler
    • the FGD installation on OP-230 boilers No. 7 and 8.

    For 2019, the upgrade of the electro filter on OP-230 boiler No. 8 is planned.

    Investment operations implemented in order to meet the requirements of Directive 2010/75/UE on industrial emissions (IED) – Białystok Heat and Power Plant

    Boiler Current heat output [MW] SCR installation
    (as of 2016 compliant with IED < 200 mg/Nm3)
    FGD installation
    (as of 2016 compliant with < 200 mg/Nm3)
    Dust
    (compliant with IED < 20 mg/Nm3)
    2013 2014 2015 2016 2016 2017 2018 2019 2016 2017 2018 2019
    K5 75                      
    K6 75                      
    K7 165                    
    K8 165                      
  • Issues regarding Mining Area – LW Bogdanka:

    Air protection:

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