Solar Photovoltaic Panels

Photovoltaic Panels generate electricity in a DC form, which will be converted into AC by an inverter. That electricity can either be used by the building occupant, or it will be fed into the National Grid.

What else need to be considered?
Ideally, should be situated on a roof slope facing somewhere between South East and South West. Any form of shading should be avoided as this can affect the performance of the PV array. Shading can come from trees, chimneys and neighbouring buildings.

Roof loading

These systems add a significant weight to your roof and it is therefore very important to have loading calculations produced by a qualified structural engineer. In the event that some strengthening is required, it is usually an inexpensive process.

How much energy can be generated?
This will ultimately depend on the amount of suitable roof space available and the type of panel used. We will provide detailed output calculations which will be based on average weather data for your area. These calculations will take into account shading.

Feed in Tariff

The Feed in Tariff will result in payments for the amount of electricity generated. This is currently set at 21 pence per kWh. Any electricity generated and not used by the building occupant will be fed into the National Grid and will benefit from an additional 3.1p per kWh.

Of course, if the electricity generated is used by the building occupant, then this will save on importing from the National Grid and hence the electricity bill.