Heat and Buildings strategy ignores potential of Hot Water Storage
Tuesday 19th October 2021
Leading trade body the Hot Water Association, HWA, is disappointed that the Heat and Buildings Strategy to decarbonise heating manages to ignore the significant potential of hot water storage and heating.
Isaac Occhipinti, Director of External Affairs, HWA said:
“The government has to step up its efforts to decarbonise heating and hot water, and it was hoped that this long awaited Heat and Buildings Strategy would set us on the path to Net Zero.”
“Unfortunately it fails to recognise the untapped potential of hot water storage-estimated to be around 7 times the capacity of the UK’s largest pumped hydro power facility (Dinorwig in Wales)- instead, focusing on the heat source and forgetting the rest of the heating and hot water system.”
“There is much excitement around the role that energy storage technologies can play to help accommodate more low to zero carbon energy sources into the UK’s generation infrastructure, however, relatively little attention has been paid to hot water cylinders. There are currently approximately 9 million hot water cylinders installed, in homes across England, which is less than 45% of homes in England, down from 77% in 2001."
"In order to meet Net Zero all UK homes will need low to zero carbon heating. Most currently available low carbon heating solutions require a hot water cylinder. We are in desperate need of a strategy to stop the decline in hot water storage population in the UK. If the Government are serious, about decarbonisation then we need to encourage homeowners, at the very minimum, to keep their hot water cylinder in order to future proof their heating system and maximise the UK’s energy storage potential."
“In addition to meeting multi outlet demand, storage systems are essential partners to any renewable energy input as these sources need to be harvested and stored. Hot water storage is the only practical solution to turning the energy into something useful and banking it for when it needs to be used.”
“The energy storage potential associated with the UK’s installed capacity of domestic hot water cylinders is comparable to our entire fleet of pumped-hydro-electric storage and with just a fraction of this resource; it would be possible to absorb the largest surpluses of renewable power that arise from offshore wind and solar PV.”
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