The Combined Heat & Power Association (CHPA) has published UK’s first map of district heating schemes. It shows widespread deployment of low carbon and renewable heating/cooling networks with 38% of district heating schemes using renewable fuels.
The number double the number of homes on heat networks within five years.
The CHPA identified over 200 existing heat networks – a mixture of residential, commercial and public sites – with a further 70 in development. Analysis of the figures revealed that:
- The average residential and commercial scheme has over 650 dwellings and 31,000m2 non-domestic floor area connected. The largest residential scheme is being planned in the Nine Elms development in Vauxhall, London, which will have over 16,000 homes connected.
- Over 53,000 homes currently have their heat supplied by district heating, with another 46,000 homes expected to connect to networks over the next five years.
- Domestic heating bills are reduced by as much as 50%. Of those schemes that provided figures, bills were reduce by an average of 18% for domestic customers and 13% for commercial customers.
- 38% of district heating schemes utilise renewable fuels of some form. The majority of these are biomass boilers, with some use of biogas or municipal waste.
- 20% of district heating schemes also provide district cooling. Passing the heat supply into sorption chillers allows chilled water to be pumped around a network in place of electric air conditioning.