Frequently asked solar questions
Short, direct answers to the questions homeowners and businesses ask before requesting a quote.
Do solar panels work on cloudy days?
Yes. Solar PV uses daylight, so panels still generate on cloudy days, although output is normally lower than under strong direct sunlight.
Do I need a south-facing roof?
No. South-facing roofs can be excellent, but east- and west-facing roofs can also be viable. Shading, roof area, pitch and consumption pattern all matter.
Do I need a battery?
No. Solar PV works without a battery. Storage can increase self-consumption and enable other tariff strategies, but it adds cost.
Can I sell electricity back to the grid?
Eligible generators in Great Britain can apply for export payments such as Smart Export Guarantee tariffs. Supplier rates and conditions vary.
Do solar panels need planning permission?
Many domestic rooftop installations can fall under permitted development, but exceptions and conditions apply. Listed buildings, conservation areas and unusual projects need extra care.
How long do solar panels last?
Panels are long-life products and often carry lengthy performance warranties, but other components such as inverters may have different lifecycles. Check product-specific warranties.
Can solar charge an EV?
Yes, but available solar generation and EV charging demand vary through the day. Compatible smart controls can help coordinate charging.
Can a battery work without solar?
Yes. Some battery systems can charge from the grid and be used with time-of-use tariffs. Whether this is worthwhile depends on tariffs, losses, cycling and cost.