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All countries in Europe are working hard to reduce their reliance on fossil fuels in their power and district heating production. However, for many years to come a large share of the energy supply will continue to be based on fossil fuels. Therefore, waste-to-energy (WtE) facilities will also in the future make an important contribution to reaching the climate goals, and high energy efficiency will remain mandatory for all waste treatment facilities in order to maximise utilisation of the European energy resources and limit the climate impact of energy production.
A new generation of WtE facilities replacing existing capacity is being established in several places in Europe, e.g. in Denmark. The majority of these new facilities feature a very high efficiency with respect to both energy recovery and environmental performance. But they not only recover energy from waste, they also have the potential to facilitate a high material recovery.
With their high energy efficiency they contribute even more to the reduction of greenhouse gases than earlier generations of WtE facilities. It is important to have this in mind in the strategic planning of both waste handling and energy production. Strategies may be based on analyses made using key figures from older WtE facilities, not reflecting new modern capacity. This can lead to policies and decisions that do not fully utilise the waste resources. For this reason it is important to ensure that key figures from new modern facilities should be available for the decision makers – whether they are public or private.
This paper focuses on one of these new high efficient facilities, Copenhill, which is under construction in the centre of Copenhagen. Copenhill is a bar-raising project in several respects, e.g. by having a total net energy efficiency of more than 107 percent, and a high potential for recycling and recovery. For instance forty percent of the incoming waste can be recovered as ultra clean reusable water, and 15 to 20 percent of the incoming waste can be reused for road construction.
|Copyright:||© TK Verlag - Fachverlag für Kreislaufwirtschaft|
|Source:||Waste Management, Volume 4 (November 2014)|
|Autor:||Inger Anette Søndergaard|
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