Home Solar Panels Case Study: How Mr. & Mrs. Cullen Saved 50% on Energy Bills

Benefits of Solar Panels for Homes

Location: Essex, United Kingdom

Prior to the installation of their new home solar panel and battery system, Mr & Mrs Cullen’s electricity bills totalled £2,046.66 per year. After assessing their property and roof space, along with their electricity usage patterns, we designed and installed a home solar panel system consisting of 15 panels and 5.12kWh battery storage. Since the installation of the new home solar system, the couple’s annual bill for the household is now approximately £1111 – A fantastic saving of £935.66 per year, these results are despite an increase of 19.05p per day on their standing charge and 7.95p/kWh on the electricity rate. Had the Cullen’s not installed solar panels for their home, they would have been facing approximately £500 increase in their electricity bill!

Our calculations therefore suggest that their home is 50.9% better off since the addition of their home solar panel system, and over half of their everyday energy usage to be completely FREE!

In our initial design and assessment, we predicted annual savings at just £769.37 with a total payback period of 12 years. We’ve recalculated based on their real-world results and now expect a new payback period of just 8 years from installation. The Cullens have already had their home solar panel system for 1.5 years, so in just over 6 years time, the system will have paid for itself. Furthermore, with the 30 year lifespan of the solar panels, by the time they need replacing, the return on investment will be 426%

As amazing as the financial benefits have proven to be, it is very important to consider our carbon footprint. Their eco-friendly efforts have been a great benefit to our environment with a 1.2kg CO2 Emission Saving to date, the equivalent to planting 83 trees – It’s proven cheap to be green!