What is solar photovoltaic (PV) energy?
Solar photovoltaic (PV) systems are a series of roof or ground-mounted panels, which soak up energy from the sun and convert it into electricity.
They are made up of a few main components – the modules, inverter and generation meter along with cabling and mounting systems. Once these are all assembled, you will have a PV system that can generate its own electricity, which can either be used straight away, or exported back to the National Grid. In some cases the electricity can be stored in a series of batteries. In most cases, systems can be installed in a variety of locations such as over the existing roof coverings, in the roof by removing slates and replacing with slate effect PV tiles, or with ground mounted-fixed on frames in gardens or fields.
How do they work?
Solar PV works by the modules, which will ideally face due south and at around a 35 degree pitch, absorbing the suns energy and converting it into direct current (DC), high voltage electricity. This then flows down to the inverter which transforms the DC electricity into a usable 230/240V alternating current AC. This is low voltage and is used in every home for our appliances. The AC electricity passes through the generation meter which clocks up the total kWh generation of your system. It then flows to your consumer unit/fuse board, where it is either used in the house if electricity is required, or is sent back to the grid.
You can still benefit from a solar PV system even if your roof is not at the optimum angle or orientation. Advancement in PV cell technology means they still work very well at lower pitch and even on East to West roofs. The yield however will be reduced.
What we do
We design and install the systems free of charge, and then sell back the electricity at a
reduced price. Contracts normally run for 20 years.