The sustainable energy experts on the newly formed River Regeneration Trust have identified Pulteney Weir as a source of hydro electric power.
This device could illuminate the Bath Christmas lights if local people like the idea, and planning permission can be granted in time.
The Archimedes Screw in Reverse harnesses the energy of falling water whilst protecting fish and other flora and fauna via a fish pass.
The device is almost silent, and can be produced in appropriate colours for a World Heritage Site and conservation area such as Bath.
A working example at Freshford has proved so successful that it produces above projected levels of electricity and requires minimal running costs and maintenance.
One of the River Regeneration Trust experts, Philip Challinor, said: “The aim is to position the micro hydro electric power turbines and generators within the existing concrete and steel structure at Pulteney Weir in a way that minimises their visual impact”.
The flood defence scheme and sluice gate would be retained, whilst providing visual improvements to the existing 1970s flood defence system.
Cllr Sarah Bevan, also involved with the Trust, added: “With a lot of work on the visual impact, and widespread community engagement, this clean energy-creating screw could power the recreation ground, the Christmas lights and still feed into the national grid.”
Local ward councillor Manda Rigby concluded: “I welcome the Trust floating this idea as a potentially good example of awareness of climate change and the need to harness natural sources of energy with minimal impact on the city’s heritage charm”.
