This is a webinar in which two companies that collaborate with Celsius talk about their experiences and perspectives of delivering heat to their local district energy networks. The presentation has particular focus on surplus heat recuperation from a public transportation system, and from a waste incineration plant.


1. Waste heat from Renova to Göteborg Energi DHC Network

Lia Detterfeldt, recycling specialist at Renova (Sweden)

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The waste treatment situation in Sweden and Europe is outlined, with some focus on material recycling and landfill in different countries. Renova’s waste to energy plant is then discussed. This plant delivers heat to district heating (DH) all the year round, supplemented by other sources when necessary (fall, winter, spring). As an example, waste incineration provided 37% of all DH in 2015. The importance of good cooperation between the waste incinerator Renova and the DH network owner Göteborg Energi is emphasized, both at the contract and dialogue level, as well as at the production level. Also, the Swedish legislation for new deliveries to the DH network is explained.

2. Waste heat from London Underground to DH Network

James Norris, Power and cooling upgrades specialist, London Underground Limited

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Large amounts of heat are produced by the London Underground, especially after recent line upgrades and the use of new trains. All London boroughs councils are required to identify and establish district energy networks in their plans. This includes Islington, which has a combined heat and power plant (CHP). This talk presents the cooperation between the London Underground and Islington. It includes some detail on the fan and heat exchanger and describes the difference between the winter and summer mode. The factors for making it a success are listed, as are the challenges encountered.

3. Questions from the audience

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  • What is the replicability for waste energy plants in other Celsius cities? [Renova]
  • Does this create a vicious cycle, since the district heat systems will be dependent on waste incineration? [Renova]
  • How will this project benefit the London Underground in the future? What are the next challenges for this project in the coming years? [London]

Date of webinar

 May 2016

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Toolbox Policy & Planning Case studies policy & planning Webinar: Finding the win-win situation of recuperating excess heat