Got a question? The InstaGroup experts have put together some Solar Energy FAQs, along with some advice on our other products and services.


Our Solar Energy FAQs cover the most common queries, from our initial survey through to installation.

Book a new obligation survey and we can answer the questions that are unique to your home.


Yes – we use a special mounting system. Ask for a no-obligation survey from us so we can check the potential of your property.

Solar PV panel installations are now a Permitted Development Right on residential properties, so planning permission is not required unless the property is listed or in a conservation/protected area.

It depends on the size of your home, its orientation and the roof space available.
Our surveyor will measure the dimensions and angles of your roof to get you the best yield possible from your Solar PV system.
The optimum direction for a roof would be south-east through to south-west, with no obstructions such as tall trees or buildings creating shadows or blocking the sun.

A 2009 survey by the Energy Saving Trust found that 35% of people would be willing to pay more for a home where some of their energy supply came from renewable sources.

kilowatt peak (kWp) is the rate the cells can generate electricity when working at peak performance, i.e. in full direct sunlight during the summer.

Our high quality Solar PV panels will effectively work from dawn to dusk, even when it’s cloudy. Our installations are designed to work in varying daylight conditions.

However, it is worth remembering that the south of England is sunnier than Scotland and the north of England, so Solar PV typically generates more electricity in these areas.

Yes. Some inverters will only work when a certain intensity of light hits the solar panels. InstaGroup specify and install the most efficient inverters available. Our intelligent systems can make maximum use of the varying light levels throughout the day to ensure maximum efficiency is maintained.

InstaGen Solar PV Panels are designed to last at least 25 years; once installed the panels require very little maintenance. The inverter may need replacing during the 25-year life of the system.