Page 56 - European Energy Innovation - Spring 2016 publication
P. 56

56  Spring 2016 European Energy Innovation


Medieval town of Ferrara

The following examples of energy           •	 Copenhagen, Denmark                   These 4 examples provide a sneak
recovery from residual waste in Europe         From 2017 a new WtE plant in         peek of the level of technology that
can help illustrate in practice how the        Copenhagen will substitute a         this sector aims to reach in the future.
WtE sector provides clean and useful           45-year-old plant, treating around   Energy efficiency has a key role in EU
energy to the neighbour municipalities         400,000 tonnes of waste annually     decarbonisation of the power sector,
and industries, while at the same              and supplying a minimum of 50,000    and should be enhanced through new
time plays a crucial role in the waste         households with electricity and      efficient district heating and cooling
management                                     120,000 households with district     infrastructure, the development of
                                               heating. Through an innovative       high efficiency cogeneration and
•	 Vaanta, Finland                             water-cooled grate furnace, and      the use of heating and cooling from
    In the city of Vaanta the new WtE          high steam parameters (440°C         available waste and renewable energy
    plant, operational since September         / 70 bar) it will reduce the NOx     sources. l
    2014, was developed with an                emissions by 95% and will double
    innovative technology. In the plant,       the electrical efficiency of the       CEWEP (Confederation of European
    that covers 30% of the electricity         former plant. In addition to the       Waste-to-Energy Plants) is the
    demand of the city and 50% of the          technological merits, the plant´s      umbrella association of the owners
    district heat, the steam produced in       architecture includes a roof-wide      and operators of Waste-to-Energy
    two grate boilers is superheated by        artificial ski slope open to the       plants (waste incineration with
    the remaining heat of the exhaust          public.                                energy recovery) across Europe.
    gases of a gas turbine. This way                                                  CEWEP’s members are committed
    the steam can reach higher values      •	 ‘ECLUSE’, Flanders                      to ensuring high environmental
    of thermodynamics parameter                “Ecluse”, French for ‘sluice’, was     standards, achieving low emissions
    optimizing the efficiency of the           chosen as the name for the             and maintaining state of the art
    thermal conversion and reducing            Waasland Port heating network          energy production from remaining
    the corrosion of the boiler pipes at       because superheated steam will         waste that cannot be recycled in a
    the same time.                             be sluiced from three WtE plants       sustainable way.
                                               to companies in the port. The
•	 Ferrara, Italy                              5-km long pipelines will have a        Contact details:
    In the medieval town of Ferrara,           capacity of 110 MW and will be laid    CEWEP
    the WtE plant is connected to the          partly underground, partly above       Confederation of European Waste-
    56-km DH network, together with a          ground. By connecting to the           to-Energy Plants
    geothermal plant and a natural gas         heating network, the participating     Avenue de Tervuren 113
    boiler. The WtE plant’s management         companies will be able to replace      B-1040 Brussels
    is developed in order to adapt             their gas-fired boilers entirely or    Tel: +32 2 770 63 12
    to seasonal changes: during hot            in part. The annual CO2 emissions      Fax: +32 2 770 68 14
    periods, when heat demand is               avoided will be approximately          e-mail:
    low, the electricity production is         100,000 tonnes (same         
    maximised; during winter the focus         environmental saving that would
    shifts to maximise heat recovery.          come from using 50 standard 2.3
    The average yearly contribution of         MW wind turbines). The whole
    WtE to the network is around 40%           ambitious project will additionally
    and the energy produced helped to          cover 0.8% of Belgian electricity
    achieve fossil fuel savings of around      demand.
    238 GWh/y.

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