CO2 Emissions Reduction Action Plan
In March 2007, CEZ Group introduced its CO2 Emissions Reduction Action Plan, which calls for generation from renewable sources of energy to triple by 2020. According to the plan, by 2020 generation of electricity from renewable sources should reach 5.1 TWh, i.e. three times more than CEZ Group generated in 2005 (1.7 TWh).
Other goals of the plan include reducing the intensity of greenhouse gas emissions by 15%, contributing to fulfillment of the national energy conservation target (i.e., to reduce consumption by 23 TWh per year), and investing in international projects leading to a savings of at least 30 million tons of CO2.
By 2012, the planned measures will require an additional total investment of over CZK 17 billion.
The goals and measures of the Action Plan are divided into four areas:
- renewable sources of energy,
- reducing emission intensity of ČEZ sources,
- energy conservation,
- international emissions reduction projects.
In 2010–2011, CEZ Group continued to optimize the operation of its plant portfolio to take into account the price of greenhouse gas emission rights in accordance with the strategy chosen for managing emission rights and emission credits from the JI and CDM mechanisms.
For the years 2008–2012, CEZ Group installations in the Czech Republic were allocated just under 35 million tons of emission rights per year. In accordance with applicable law, the emission reports of all CEZ Group installations were subjected to an independent audit by DET NORSKE VERITAS CZ. Emission rights to cover these emissions will be stricken from the national registers of the relevant countries, in accordance with applicable legislation.
The production of pollutant emissions released into the air from CEZ Group sources is continually monitored. In 2011, emission limits were complied with at all CEZ Group combustion sources, as was the ČEZ-wide emission sum ceiling along with all other technical conditions for operation relating to air protection, as imposed upon said sources in the operation permits issued by the relevant administrative authorities.
In operating coal-fired power plants and power heating plants, CEZ Group conducts longterm, systematic monitoring of their impact on air pollution through its own in-house network for measuring ground-level concentrations. Currently, 14 measurement stations are in operation, all located in the vicinity of coal-fired power plants and power heating plants. The stations measure gaseous pollutants (SO2, NOX) and suspended dust particles (PM10, PM2.5). The public is kept informed of the results of emissions and ground-level concentration monitoring conducted in conjunction with the operation of combustion sources through the website, http://www.cez.cz/cs/odpovedna-firma/zivotni-prostredi/sledovani-parametru-pro-ochranu-ovzdusi.html, where the results of emissions and groundlevel concentration measurements are published, along with figures calculated for individual sources expressing the proportion of the air pollution in their vicinity attributable to them. All ČEZ coal-fired power plants, with the exception of the Dvůr Králové power heating plant, have implemented continuous measurement of CO2 concentrations meeting the requirements of Decree No. 205/2009 Sb. of the Ministry of the Environment of the Czech Republic.
In the technical project documentation for the comprehensive renewal of Tušimice Power Station, the brown coal combustion equipment is designed so that, in addition to increasing the absorption capability of the flue gas purification equipment beyond the legal requirement, the purified flue gas will be better dispersed with the aim of further lowering the ground-level concentrations of various pollutants in the region. Among other measures, this was achieved by routing the flue gas into the cooling towers, even though this involved incurring additional expenses for longer flue gas piping and demolishing the existing stack. The following graph and table illustrate how the comprehensive renewal of Tušimice Power Station is having a positive effect on the air.
Emissions, Tušimice Power Station (in mg/Nm3)
|Reasons for renewal||Parameter||Actual amount in 2010||Actual amount in 2011||Fulfillment|
|1. emissions of||SO2||200 mg/m3||107 mg/m3||107 mg/m3||fulfilled|
|NOX||200 mg/m3||169 mg/m3||180 mg/m3||fulfilled|
|Solids||30 mg/m3||12 mg/m3||10 mg/m3||fulfilled|
|CO||250 mg/m3||71 mg/m3||61 mg/m3||fulfilled|
|2. efficiency||37.8 %||39.1 %||39.1 %||fulfilled|
Also of interest is the comparison of emissions from the CCGT with those from the conventional generating units at Počerady Power Station.
B2 – B6
|Installed capacity||838 MW||5 x 200 MW|
|Net efficiency||approximately 57.4%||approximately 32.7%|
|Emission limits||Government Resolution
No. 146/2007 Sb.
|NOX||50 mg/Nm3||45 mg/Nm3||650 mg/Nm3|
|SO2||35 mg/Nm3||-||500 mg/Nm3|
|Solids||5 mg/Nm3||-||80 mg/Nm3|
|CO||100 mg/Nm3||60 mg/Nm3||200 mg/Nm3|
|NOX (mg/Nm3)||CO (mg/Nm3)|
|Legislative limit for CCGT||50||100|
|Values guaranteed by CCGT supplier||45||60|
|Actual values for existing brown coal-fired unit||approximately 500||approximately 50|
The amounts of SO2 and solids (dust) are not given, as the actual values for the CCGT are borderline immeasurable. CO2 production will be 0.36 t/MWhe, which is much less than the figure for coal-fired sources (~0.96–1.10 t/MWhe)
The international members of CEZ Group protect the environment, too. In 2011, ELCHO Power Station built a new line for conveying biomass into the boilers. It is equipped with a dust separator that has contributed significantly to reducing dust particulate emissions.
Emission Rights Granted and CO2 Produced, 2011
|Unit||Emission rights granted||CO2 produced|
|Chvaletice Power Station||tons||2,719,059||3,109,820|
|Trmice power heating plant||tons||1,125,198||775,202|
Water use and wastewater discharge is governed by conditions set forth in integrated permits issued by regional authorities and in decisions handed down by water management bodies.
In 2010, four water management decisions concerning ČEZ’s Lipno Hydro Power Station were amended. At Bílina Mines (Severočeské doly), a project was drawn up of a new process for treating mine water up until the planned decommissioning of the mines. Also drawn up was an alternative plan for purifying a portion of the mine water using root systems. After this purification method is verified, it will be possible to decide whether or not to use it in the future.
In 2011, all CEZ Group generation facilities complied with discharge limits and all other water protection-related technical terms and conditions of operation as imposed in the operation permits issued by the relevant administrative bodies. No accidental discharges of hazardous substances entailing a threat to water quality were recorded. Analysis of groundwater samples demonstrated that, thanks to immediate cleanup response, a discharge of approximately 1.5 m3 of ferric sulfate into the soil at Mělník Power Station in June 2011 resulting from a pipe failure posed no serious risk.
The projects for the comprehensive renewal of Tušimice II Power Station and the construction of a new generation unit at Ledvice Power Station include water management upgrades designed to limit any release of pollutants into surface water flows. An agreement on cooperation was signed with the Morava River Water Management District, concerning monitoring of polluters on the Jihlava River, including its tributaries. The objective is to improve the purity of water in that river and propose effective measures to eliminate pollution.
In 2011, CEZ Group supported the conference and trade show HYDRO 2011: Practical Solutions for a Sustainable Future. This is the largest conference of its kind in Europe – a destination for specialists from around the world. The principal items on the agenda were safety, technological innovation, economics, and environmental aspects in the field of hydro energy. The event included an international conference and trade show, that once again this year attracted the top hydro energy manufacturers and engineers, financiers, politicians, and high-profile managers.
Protection and Support of Fauna
In 2010 and 2011, CEZ Group continued to take measures to protect birds from electric shock and in planning further activities in this area.
Act No. 114/1992 Sb. on the Protection of Nature and the Landscape stipulates that, starting in 2004, ČEZ Distribuce must equip all new and rebuilt medium-voltage lines with elements designed to protect birds from electric current. As part of our environmental responsibility, in 2007 CEZ Group decided to go beyond what the law requires and install protective equipment on all potentially dangerous medium-voltage lines. This included legacy power lines where such equipment was not required by law. In 2009, an amendment of the Energy Act made it mandatory to secure all medium-voltage power lines within 15 years, i.e. by 2024.
At the recommendation of ornithologists, the protective measures will first be taken in locations where the bird-injury risk posed by the power lines is critical. In 2010 and 2011, approximately 300 km of power lines were secured in this manner, at a capital expenditure of over CZK 30 million. The priority is to use safe support points on new medium-voltage lines. The preferred solution will be to use consoles specially designed to completely prevent bird injuries.
Currently, there are roughly 750,000 power poles in the Czech Republic that could potentially be dangerous to birds. Today, approximately 12% of power lines are equipped with effective protection. The problem arises particularly on 22 and 35 kV medium voltage lines. The 110 kV power lines operated by ČEZ Distribuce are potentially dangerous as well. In total, CEZ Group – through its member, ČEZ Distribuce – manages 153,770 km of power lines in the Czech Republic. Of this number, 22–35 kV outdoor power lines account for 50,100 km.
CEZ Group is also engaged in ensuring the safety of the strictly protected White Stork population. It is estimated that approximately one tenth of stork nests are located on power poles. For this reason, special metal structures called Stork Nesting Points are installed on them. In cooperation with nature protection experts, in some cases stork nests are moved to protect the birds as well as the electrical equipment. A stork nest can weigh up to a half ton.
In order to address a lack of information concerning bird injuries sustained by flying into medium- and high-voltage power lines under conditions of reduced visibility, in July 2011 we installed – based on consultations with ornithologists – a monitoring system that can detect such impacts on a selected power line that extends across the Elbe River in the Elbe Canyon in North Bohemia. So far, no collisions with this power line have been recorded.
In 2011, Romania-based CEZ Distributie S.A. commenced a project to equip power lines with bird-protection devices.
CEZ Group takes great interest in protecting fauna inside and around its power plant compounds. For example, CEZ Group’s efforts made it possible to protect the Peregrine Falcon (Falco peregrinus), the acutely endangered European Beaver (Castor fiber), the specially protected Sand Martin (Riparia riparia) and the Grayling (Hipparchia semele), as well as endangered species of ants. In the vicinity of Dukovany Nuclear Power Station, CEZ Group is a long-term supporter of the Mohelno Serpentinine Steppe, which is home to the critically endangered species Praying Mantis (Mantis religiosa, the European Owlfly (Ascalaphus macaronius), and the European Green Lizard (Lacerta viridis).
For several years now, CEZ Group has been supporting the Pasíčka Wildlife Rescue Station and Eco-center (Záchranná stanice živočichů a ekoncentrum Pasíčka). In 2011, the rescuers received a CZK 1 million contribution from a Green Energy grant. They are using the money to expand the rescue station so that they can provide professional care for injured wild animals, and they also acquired a new motor vehicle for transporting injured animals. The station’s principal mission is to treat injured and weakened animals and return them to their natural habitats. For example, April 2012 saw the return of 54 hedgehogs which had spent the winter at the rescue station. Due to their low weight, the probability that they would not survive the winter was high, so they were taken in. They were returned in small groups at several locations in the Pardubice Region, i.e. the area where they were originally found.
Green Energy is a CEZ Group project that enables us to assure both households and businesses of our environmental responsibility and support for environmental protection activities. The Green Energy product is available to all CEZ Group customers and is directly focused on supporting renewable sources of energy.
Customers who order green energy pay a symbolic fee of 10 hellers per kilowatt-hour in addition to the regular electricity price calculated using the applicable rate. All of these fees are collected in the Green Energy Fund, which serves to finance non-profit and public-benefit projects in the area of renewable energy sources. 2010 saw a redefinition of the Green Energy program – under the new rules, only those companies that document that they adhere to sustainable development principles will be eligible to use the Green Energy logo and certificate.
2006 saw the formation of the Green Energy Council, consisting of scientists, ecologists, and experts in renewable energy. The Council makes decisions concerning the distribution of funds from the Green Energy Fund to projects focusing on financing science and education in the area of renewable energy. Out of a total of 113 projects that applied in 2010, the Green Energy Council selected 12 and provided a total of CZK 5.6 million in grants to finance their implementation. In 2011, the Council distributed nearly CZK 3 million to implement ten projects that were chosen out of a competitive field of 37 applicants for Green Energy Fund grants.
CEZ Group has pledged to plant a new tree in the Green Energy Forest for each Green Energy customer. In addition, in 2008 CEZ Group pledged to match each 10 hellers collected from customers with another 10 hellers, thereby doubling the amount distributed by the Fund and making it possible to support more projects.
May 2010 saw the establishment of the second Green Energy Forest, in which for each customer on the Green Energy tariff, CEZ Group donates one tree. The forest is located in Přimda, in western Bohemia.