Solar PV System
If you are looking to reduce your electricity bills and potentially generate your own excess electricity, solar photovoltaic technology (solar PV) systems convert the sun’s energy into power using PV cells. These cells do not require direct sunlight to operate and therefore, despite the typical British weather, they can continue to operate even on overcast or cloudy days.
How do They Work?
A solar PV panel consists of many cells made from layers of semi-conducting material which, when light shines upon it, a flow of electricity is created.
A solar PV system will be made up of several panels, with each panel generating circa 355kw of energy in strong sunlight, and a typical system will consist of circa 12 panels and generate direct current (DC) electricity. As electricity used for household appliances is alternating current (AC), an inverter will be installed to the system to convert the DC electricity generated to AC to ensure it can be used throughout your home.
Do I Have Enough Space?
The average system size is circa 4.2kWp which will require circa 25m2 of roof space.
An unshaded South facing roof is ideal for maximum electrical output however an East or West facing roof could still be considered suitable but with an estimated drop of 15-20% in energy yield.
A North facing roof would not be recommended for installation and nearby buildings, trees, or chimneys could shade the roof and have a negative impact on performance.
Do I Need Permission?
Solar PV panels are considered to be ‘permitted developments’ and will often not require planning permission. However, exceptions do apply so it is always best to check with the local planning office for guidance; also, if you live in a listed building, conservation area, or national park then further restrictions may apply.
All solar PV installations must be registered with the Distribution Network Operator (DNO) who are the company responsible for bringing electricity to your home.
Benefits
During daylight hours you can generate electricity, even on cloudy days, for using power around your home; however, if you are using more power than the panels are generating, and during the evening when the panels are not generating any electricity, you will be supplementing this by importing electricity from the grid.
As your solar system will be working at its peak during the daylight hours, electrical appliances such as washing machines and dishwashers can be set to run during the day.
Reducing imported electricity usage from the grid can help lower your bills and reduce your carbon footprint.
Solar PV can be combined with other renewable energy technologies such as heat pumps or solar hot-water systems.
At Huttie our MCS accredited engineers are adept at specifying and installing solar PV systems for your home. With considerable experience at installing, maintaining, servicing solar PV systems we aim to significantly reduce your home’s energy costs whilst offering unrivalled levels of design, installation, and after-care.
Our project managers can work with you to design a tailor-made solar PV system for your home and will gladly provide a free, no-obligation quotation.
