i56: Community/District heat pumps

4 supporter
Given the high density of housing in the region, community heat pumps could provide more sustainable heating at a lower cost especially for flats (example project https://finn-geotherm.co.uk/case_study/landmark-renewable-heating-scheme-cuts-costs-for-flagship-res...


Rationale

Sustainable heat with lower visual impact than turbines

Response to suggestions

The suggestion that we look to make use of the river Aire as an energy source for these heat pumps (drawing on the project on the Clyde  https://www.west-dunbarton.gov.uk/council/newsroom/news/2020/dec/district-heating-network/) seems like an excellent way of future proofing a switch to heat pumps and avoiding investing in energy sources that still produce higher carbon outputs

Making use of existing land stock/council land, especially large areas like car parks, playing fields etc seems like a really good approach to siting heat exchanges. I agree that new building works should incorporate pipes for this

Suggestions for improvement (3)

written and rated by the supportes of this initiative to improve the proposal and its reasons


Use of Council land

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| implemented: 
Definitely support this. The new estates being built all have gas boilers that will be liabilities well past the 2030 commitment. I think that a lot of council land could be used for ground source heat exchanges e.g. sports fields and parkland adjacent to houses should be available for heat collection unless there is good reason against (e.g. large trees). When estates are built, heat collection pipes should be installed under roads, with vertical sections to provide sufficient heat for houses. If new car parks are built, they should have collectors underneath. District heating makes sense where there is a heat source. District heating by combined heat and power (CHP) is more problematical when fossil fuelled, but may be a bridging technology. So, the suggestion is that there should be a presumption that council land can be used for heat collection and that new build should have pipes installed during construction.

river-source heat pumps

collective rating: 
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Large scale district heating is seen as a way of decarbonizing heat in urban areas and is now implemented in parts of Leeds. There is also a large system in Sheffield. It can be an effective way to decarbonise provision of heat in historic buildings and those that are difficult to retrofit. The key is finding low-carbon heat sources to supply heat to the system. The common apporach is to use municipal solid waste incineration to generate electricity and heat for district heating. This can be said to be low carbon heat - but this is debatable. Many district heating systems use gas boilers or combined heat and power systems. As electricity is decarbonized, this makes less sense - using electricity becomes a lower carbon solution. Delivering electrified heat to district heating makes most sense when large heat pumps are used. Such heat pumps can deliver heat at high temperatures if necessary and can also deliver cooling. All heat pumps need a low temperature heat source - air or water based. One promising approach for Yorkshire is to use the energy resources of rivers with these large scale heat pumps. A very good example of this can now be found on the Clyde: https://www.west-dunbarton.gov.uk/council/newsroom/news/2020/dec/district-heating-network/ This cant be much different to the situation in Hull?

Community heat pumps and networks

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There are now several examples of community heat pump schemes in Leeds. These have been deployed at a number of sites where LCC has pairs of tower blocks that previously used electric storage heaters. In these schemes, a small heat pump is installed in each flat along with new radiators and water storage system. All the heat pumps are connected to a shared geothermal heat exchanger. This consists of about a dozen boreholes drilled in the ground surrounding the blocks of flats. These have reduced tennants bills significantly along with the related emissions. This approach could be thought of as a type of local district heat network. Something similarl could be done in terraced streets with boreholes undner the road.

Issue #18

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During the discussion phase, the issue is debated on while the initiators improve the proposals and reasons in their initiatives. Supporters of initiatives can write and rate suggestions for improvement.
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