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 NO_x 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

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.

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.

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
• NO_x 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

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.

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.

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 NO_x – 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 NO_x 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.

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.

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