4th Gen Heat Networks Coming to Fruition – E.ON renewable heat network demonstration

In January this year DECC funded a number of innovative projects to support heat networks in the UK. Today saw the E.ON ‘s project announced: UK-first renewable heat network demonstration wins DECC funding. It’s encouraging in a week that has been dire for those of us in the sustainability profession, given the Government’s stance on zero carbon homes drop like a stone in the same way its commitment to on-shore wind has fallen, to see something good come from the coalition Government. Ed Davey was clearly able to keep some emphasis on low carbon investment when the Liberal Democrats were in charge at DECC.

E.ON have stood alone as one of the ‘Big 6’ that have recognised the longer term value in heat networks and the scheme in Exeter and the investment in Sheffield are testimony to that. It’s good to see further investment that will decarbonise the heat in the Exeter network through the use of solar thermal energy.

A presentation I made in July 2013 set out what a 4th Generation, 21st Century, heat network should achieve. The scheme in Exeter is clearly edging in that direction. In a previous blog I suggested heat networks should seek to achieve a number of things, including:

  1. Greater resilience, through heat storage, back-up and optimisation;
  2. Lower carbon heat, through the adoption of lower carbon fuel sources, such as geothermal heat, biomass, biogas, solar;
  3. Choice and product differentiation, offered through multiple heat providers inputting to a singular (independent possibly) network over which consumers buy their heat. Products could be differentiated by temperature (return temperatures are lower than those temperatures leaving central plant), carbon intensity (fuels of varying intensities of heat can command different prices and values shaped by carbon markets and carbon targets).

You can read previous blogs on heat networks on consumer protection; the Nottingham city scheme; the use of rivers for heat; the role of cities in heat network development;

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