The Week In - Issue 761 - 21st December 2022

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THE WEEK IN East Bristol & North East Somerset

21st December 2022

Issue 761

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Old mines in South Glos could become source of renewable heat South Gloucestershire Council is investigating the potential use of old mine workings as a source of renewable heating and cooling for homes and businesses. With the need for affordable and non-polluting alternatives to energy sources such as gas and oil never being greater, the council is asking whether part of the solution could lie beneath our feet. South Gloucestershire has an extensive mining heritage as revealed by old maps and place names such as Coalpit Heath. Under Mangotsfield, Westerleigh and Kingswood alone there are 42 coal seams and more than 1,000 mine entrances. Most of these were worked in the 19th century but a few remained in use up until the 1920s.

The old mines are filled with floodwater which is naturally heated by underground geological activity. Using heat pumps, the water temperature can be raised to the level required for space heating and domestic hot water. This could then be used to supply buildings such as schools, hospitals and offices, or a heat network serving multiple buildings or a district. The extent of the heat resource is to be determined but the council estimates that 20,000 to 26,000 homes and businesses are located in the vicinity of former mine workings with a potential heat resource. In addition to providing heat, mine water can also possibly be used to provide cooling during summer months. An initial study of records of local disused and abandoned coal mines was carried out by the Coal Authority in July, which identified a number of areas of interest. The council is now looking to secure funding to undertake a further study of areas with the greatest potential heat resource. The aim is to better understand the size of the energy resource and investigate how it could be best utilised. Cllr Toby Savage, the leader of the council with cabinet responsibility for climate change, said: “As we move away from oil and gas to cleaner and more affordable alternatives, I am excited about the potential to make use of renewable source of heat from the local area. “That’s why we asked the Coal Authority to investigate

Brandy Bottom Colliery was a 19th century steampowered colliery. It is a Scheduled Ancient Monument and lies next to the Dramway

whether disused mines could be part of the solution to finding alternatives to fossil fuel heating, and to coping with much higher summer temperatures. One hundred years after South Gloucestershire’s mines closed, they may yet be part of the solution to the climate and our move towards becoming carbon neutral.”

The old Frog Lane Colliery in Coalpit Heath

Also in this week’s issue

‘Best compromise’ reached over Temple Street parking . . . page 3

Man fined over Hanham fly-tip . . . page 4

Latest on bus network concerns . . . page 5

Spotlight on Keynsham Festival’s future . . . page 13


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