This beautiful Victorian Lodge House had an existing Solar Thermal system in place so our client was already comfortable with renewable energy solutions. The Solar Thermal was running alongside a gas boiler, however, the homeowner was keen to move away from his reliance on fossil fuels; as the installation of an Air Source Heat Pump (ASHP) negated the need for the Solar Thermal system and the gas boiler, both were removed.
The installation of 11 solar panels, with some mounted on the roof of the property and some on ground-mounted frames, meets the property’s energy needs including the running of the Air Source Heat Pump (ASHP) – thereby making it 100% green. The addition of a solar iboost ensures any surplus energy produced by the panels gets diverted to power the immersion heater before being sent back to the national grid. Effectively meeting the hot water needs for the property without having to buy-back electricity from the grid.
In terms of numbers, the estimated return on investment over 20 years is 7.32% for the PV – with an implied payback of 13.7 years. As for the ASHP, taking into account payments from the government’s Renewable Heat Incentive (RHI) for 7 years, the overall benefits of the system in that time is estimated at £7,522.83. Some very attractive returns!
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