A million homes in the UK use solar photovoltaic (PV) panels to produce electricity more efficiently and lower the cost of energy bills. However, according to the Hot Water Association (HWA), households could save up to £240* more if a diverter is also used, alongside a hot water cylinder system.
The findings from the HWA show the cost-saving benefits of using a diverter to ensure that any “spare” solar generated electricity, which would otherwise be exported back to the grid, is used to meet the household’s hot water demand.
Stuart Elsy at the Hot Water Association, said:
“A million UK homeowners with PV panels could be in the dark when it comes to knowing about the cost saving benefits of using a diverter alongside a hot water cylinder system. By simply installing a diverter and keeping their cylinder research has found that, given the relatively low initial cost of a diverter, payback could be achieved in just under three years.
“With many households also thinking of investing in solar PV panels, this could be welcome news that it is not always necessary to change an existing cylinder. However, for those who would like to update, there are cylinders optimised for PV input that can maximise the potential savings even further.”
For further information and advice on all aspects of hot water, visit www.hotwater.org.uk
*For households using gas to heat their hot water, a saving of approximately £90 could have been made in each of the last three years, working on the assumption the gas price is 4.18p/kWh. For those using electricity, the saving would be approximately £220 to £240, working on the assumption the electricity price is 13.86 p/kWh3.