Use excess solar energy to heat your hot water and save up to £240 per year

Use excess solar energy to heat your hot water and save up to £240 per year

The latest report from the Hot Water Association (HWA), published today, reveals how homeowners can save up to £240 a year by using excess solar energy to heat their household hot water, turning the cylinder into a ‘thermal battery’.

Attaching a simple device, such as the Solar iBoost, allows you to divert your excess energy to your hot water cylinder.

Diverting excess solar energy to your hot water cylinder

The HWA report titled ‘The Thermal Battery’ explores the synergies between hot water cylinders and Solar PV, specifically the potential to store the energy generated from Solar PV systems locally, using hot water storage as the mechanism. In doing so, homeowners can make use of the excess electricity they generate and maximise their investment. Given that 40% of homes in the UK already have a hot water cylinder, solar PV offers real potential for significant cost savings.

Isaac Occhipinti, Head of External Affairs, HWA said:

“HWA statistics show that, homeowners could save between £90 and £240 per annum and meet around 50% of their hot water energy requirements if they were to divert their excess solar energy using the products currently on the market which homeowners can connect to their immersion heater.”


He added:

There are over 900,000 homes in the UK with solar PV installed. But while these consumers should be delighted with the energy they are generating and the associated savings, research has found that the vast majority of these people are actually dissatisfied because, as they are out at work when the energy is being generated, they cannot consume all of the surplus energy and therefore do not see the true benefits.


“Diverting this energy to a hot water cylinder, which may ordinarily be fuelled by a boiler, will save significantly on gas bills. Further, projected increases to electric demand, especially with presumed levels of electric vehicle deployment (which is estimated to add at least 10% to UK power demand), will place a strain on the grid. BY 2050, EV electricity demand could rise to 40 – 45 terawatt hours (TWh) per year. Allowing households with solar PV to opt to sell their excess electricity to the grid or store it for when needed will reduce pressure on the grid, whilst saving consumers money.”


Investing in the iBoost

If you have invested in Solar PV for your home then you will probably already be aware that there are periods of “export”, when you cannot consume all the energy being generated by your system. In this scenario, the excess energy you have generated flows back to the grid. So how can you maximise your investment, make the most of the energy you generate and also get some extra savings?

At Total Renewable Solutions we work with Solar iBoost. The iBoost is attached to your immersion heater and allows you to divert this excess energy to your hot water cylinder.

Benefits include:

  • Reducing the cost of hot water heating in your home
  • Reducing the use of your boiler
  • Maximising the use of the free solar energy generate at your property

iBoost can be installed quickly and easily, with our prices starting at just £400+VAT (subject to location).

Get in touch with one of our team today and maximise your savings!

The full HWA report can be found here.

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