FREQUENTLY ASKED QUESTIONS
Below are answers to some of our most frequently asked questions regarding Solar PV. You should discuss with the Local Planning Authority for your area whether all of the limits and conditions will be met. For more information click here.
Solar panels generate electricity using energy from the sun. The panels produce energy from daylight, not direct sunlight, so they still produce energy on cloudy or overcast days. An inverter converts the electricity from direct to alternating current, for use in the property. The electrical energy produced is either used directly in the property, or when the system is producing more power than is needed it is exported to the grid.
Savings depend on how much you pay for electricity at the moment and how much electricity prices increase in the future. We will estimate your savings when we prepare your quote.
PV stands for photovoltaics, the term used in physics for electricity produced by light.
This is the power generated under standardised test conditions with a light intensity that roughly corresponds to a sunny day in the summer in England.
The panels have a warranted life of 25 years. The working lifetime is much longer.
We will make an assessment during our site visit. If we have any doubts regarding the structural strength, we will recommend you to get a survey by a structural engineer.
Usually any dirt is washed off when it rains if the roof-angle is at least 15 degrees.
The systems we install are grid connected. If there is a power cut, the system will automatically be switched off as a safety measure.
The system can either be sized in relation to how much suitable roof space there is or in relation to the available budget. Our domestic installations typically range from 6 to 21 panels.
It depends on where in the UK you are. It varies from 30 degrees for southern England to 40 degrees for Scotland.
No. While south facing is optimal, many panels are installed east facing or west facing or between south – and east/west facing. Compared to straight south facing panels, east/west facing panels generate 80% of the output.
Solar panels are a permitted development and you do not need planning permission unless your property is listed or if it is located in a conservation area or an “area of outstanding natural beauty”. If you are uncertain, please check with your council.
All the systems we install can be connected to battery storage
No, solar PV panels works from any light. Obviously, they produce more power the stronger the light is.
PV systems are sensitive to shade and panels should not be located close to chimneys etc.
The installation of solar panels and equipment on residential buildings and land may be 'permitted development' with no need to apply to the Local Planning Authority for planning permission. There are, however, important limits and conditions, detailed on the link below, which must be met to benefit from these permitted development rights.