Frequently asked questions
Just click on the question to see the answer or simply scroll down the page.
Will I need planning permission for my solar technology system?
You don't usually need planning permission for most home solar technology systems, but check first with your local planning officer, especially if your building is listed, or is in a conservation area or World Heritage Site. If you're unsure, give us a call.
Is there a warranty for my solar technology system?
Yes. Please call us on for full warranty details on 0800 077 3770 or request a callback
Do the solar panels need regular cleaning?
Usually the rain will do all the cleaning needed. If not, just get in touch and we'll be able to advise you.
Does the solar technology system need servicing?
A solar PV system does not normally need servicing as it has no moving parts and the other components, such as cables and connectors, are designed to withstand environmental conditions. We suggest you routinely visually inspect your system though (from ground level only) and if you notice any damage, we're here to advise you.
A solar thermal system should be serviced annually along with your general boiler service.
Is a solar technology system covered by Building Regulations?
In most cases solar PV is a permitted development.
How does the electricity generated by a solar PV system return to the grid?
We'll ensure your system is installed according to the latest electrical installation guidelines. We'll also advise your District Network Operator (DNO) that we've installed your system and deal with any paperwork.
Will I need to get a new boiler for my solar thermal system?
Most conventional boiler and heating systems are compatible with solar water heating. Your current system may not be compatible if you have a combination boiler with no separate hot water cylinder. We will be able to advise you about this.
How much hot water will my solar thermal water heating system produce?
This will depend on the size of the system installed and of course the weather. As a guide, a solar heating system could generate around 1/3 of your hot water needs.
What happens to my solar technology system during a power cut?
For safety reasons, the output of the solar technology system is automatically turned off when it detects a power cut. It automatically restarts when the mains power is back - so you won't need to do anything.
Is British Gas responsible for any loss or damage for my solar technology system?
A. In the unlikely event that you suffer any loss or damage as a result of us installing the solar panels, our responsibility to you will be limited to £1 million.
Exclusions, Terms & conditions apply.
How do I know if I can sign up for the Government's Feed-in Tariff through British Gas?
You can sign up if you are one of the following:
- An eligible energy customer who produces their own electricity from a renewable source i.e. if you generate your own electricity through a solar PV system.
- An energy customer of a supplier who does not have to pay Feed-in Tariff. If you're unsure, ask your supplier.
How do I know if my installation is eligible for Feed-in Tariff?
You are eligible if your renewable source installation is smaller than 5MW capacity and you say yes to the points below:
- Your installation is accredited by the MCS (Microgeneration Certification Scheme).
- Your installation is on the Ofgem central Feed-in Tariff register.
- You already receive or have registered to receive Renewables Obligation Certificates (ROC's) before 31 March 2010.
If you are unsure whether you are eligible, give us a call on 0800 077 3770 and we can help advise.
How do I receive my payments from Feed-in Tariff?
Once we have checked you are eligible we will send you a Feed-in Tariff contract. You will be paid quarterly, providing you supply us with regular meter readings.
The contract is subject to change by law at any time.
 Phone lines are open 8am-8pm Mon to Fri and 8am-4pm on Sat. Closed on Sundays and Bank Holidays. Calls may be recorded and/or monitored for quality assurance and
 Source: http://www.energysavingtrust.org.uk/Generate-your-own-energy/Solar-water-heating Energy Savings Trust, (01/12)