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Domestic solar FAQs
Thinking about solar panels for your home? We’ve gathered the most common questions our customers ask about domestic solar.
From costs and benefits to technical details, this guide helps explain everything you need to know about powering your home with solar energy.
The benefits of solar power
Installing solar panels brings many advantages to your home and lifestyle. Beyond the obvious environmental benefits of generating clean, renewable energy, you’ll see significant reductions in your electricity bills. Many households can save 50% or more on their annual energy costs. The Smart Export Guarantee ensures you get paid for the excess power you send to the grid, while solar battery storage lets you save power for later use.
Solar panels also increase your property value and protect you against rising energy costs. With minimal maintenance needs and a lifespan of 25+ years, they represent a sound long-term investment in your home’s future. As energy prices continue rising, the financial benefits of solar power become even more attractive.
Frequently asked questions
Got a question about our domestic solar services? Check out our FAQs below for more information. If you can’t find what you’re looking for, please get in touch.
How much do solar panels cost?
A typical residential solar system costs between £5,000 and £10,000, depending on size and specification. However, with energy savings and export payments, most systems pay for themselves within 7-10 years.
Do solar panels work on cloudy days?
Yes. While output reduces in cloudy conditions, panels still generate useful amounts of power. Britain’s climate provides plenty of light for effective solar generation throughout the year.
How long do solar panels last?
Most solar panels come with a 25-year warranty and can last even longer. They gradually become slightly less efficient over time, typically losing less than 1% efficiency per year.
Will solar panels damage my roof?
No. Professional installation ensures panels mount securely without damaging your roof. In fact, panels can protect your roof from weather damage and extend its lifespan.
How much maintenance do solar panels need?
Solar panels require minimal maintenance. While rain helps keep them clean, occasional professional cleaning might boost performance, particularly in areas with high pollution or near trees. Annual checks ensure everything works efficiently, but no regular maintenance schedule is needed.
Can I add battery storage later?
Yes, you can add battery storage to any solar installation at any time. Many homeowners start with panels and add batteries later as their needs change or battery technology improves.
How much space do I need for solar panels?
A typical 4kW system needs about 20 square metres of roof space. Your installer can assess your roof and recommend the most efficient layout for your home.
What happens to the excess power I generate?
The Smart Export Guarantee ensures you get paid for any excess electricity you send to the grid. Alternatively, battery storage systems let you save extra power for evening use, maximising your self-consumption.
Will I still need a grid connection?
Yes. Your grid connection provides backup power when your solar panels aren’t generating enough electricity, like during night-time or particularly cloudy periods. Solar power works alongside your grid connection, reducing your need for grid electricity rather than replacing it entirely.
Do I need planning permission?
Most residential solar installations count as Permitted Development and don’t need planning permission. However, listed buildings or homes in conservation areas might require approval. We’ll check all requirements during your initial survey.
When’s the best time to install solar panels?
Solar panels work effectively year-round, so there’s no ‘best’ season for installation. However, installing during autumn or winter means you’re ready to maximise generation during spring and summer months.
Can solar panels power my home during a power cut?
Standard solar systems shut down during power cuts for safety reasons. However, special systems with battery backup can provide power during outages. These systems cost more but offer greater energy independence and security.
How much money can I save with solar panels?
Savings vary depending on your energy use and system size, but most households reduce their electricity bills by 40-60%. With current energy prices, a typical 4kW system could save you £900-£1,200 per year through reduced bills and export payments.
Can I charge an electric car with solar panels?
Solar panels can help power your electric vehicle, potentially saving thousands in charging costs. By installing a solar-compatible EV charger and timing your charging for daylight hours, you can use free solar power to charge your car. Many homeowners find that adding a battery storage system helps them capture more solar energy for evening charging, maximising their savings and convenience.
What happens if my solar panels develop a fault?
Contact us immediately if you notice issues. Most problems appear in your monitoring system first, and many can be fixed remotely.
Do solar panels affect home insurance?
Most home insurance policies cover solar panels as part of your building’s permanent fixtures. However, you should inform your insurer when you install them to ensure proper coverage. Some insurers might adjust your premium slightly, but many recognise that solar panels can actually reduce risk by protecting your roof and incorporating modern safety features.
Can I install solar panels myself?
No. Professional installation is essential for safety, warranty and electrical compliance. Only MCS-certified installers can provide the documentation needed for insurance and export payments.
How do solar panels cope with extreme weather?
Quality solar panels are remarkably resilient to extreme weather. They’re tested to withstand high winds, heavy snow and intense heat. The toughened glass surfaces resist impact from hale, and the aluminium frames prevent water damage. We’ll factor in local weather patterns when designing your system, ensuring appropriate mounting methods and panel choices for your specific location.
During severe storms, modern panels automatically shut down if they detect unsafe conditions, protecting both your system and your home. This built-in protection, combined with professional installation and regular maintenance, means your solar system should operate reliably regardless of weather conditions for decades to come.
