A simple buyers guide for Solar PV systems


PowerPoint Energy provides FREE no obligation solar advice to help you take advantage of Government tax free incentives. We can talk you through all your Feed-In-Tarrif options.

A Solar PV system works using a number panels (an array), which is normally mounted on the roof. Each solar panel is made up of photovoltaic cells. These are usually made of wafer-thin layers of silicon and look a bit like blue or black tiles. When daylight hits the cells it creates an electric field.

The brighter the sunlight, the more electricity is produced. This direct-current (DC) electricity then flows to an inverter, which converts it into alternating current (AC) electricity for you to use. The sun gives off light, even on cloudy days PV cells on the panels turn the light into DC electricity.

The current flows into an inverter, which converts it to AC electricity ready to use The current is fed through a meter and then into your home’s consumer unit Plug in and switch on. Your system will automatically use the free electricity you’ve generated, then switch back to the grid as needed Any electricity you don’t use is exported to the grid for others to use.

If you have a solar PV system installed at home, it will automatically feed the power you’ve generated to your appliances, so a lot of the power you use during the day will be free. During the night times, or if you use more energy than you produce, your power supply will switch back to the grid. You won’t notice any disruption or change – just smaller bills.

To make the most of all that free electricity, it’s best to use appliances like dishwashers and washing machines during the day. The system can’t store electricity, so if you produce more than you use during the day, any excess will be fed into the national grid for others to use. Solar PV is a great investment for the future. Not only will it help you save on energy bills and protect you against rising fuel prices, it will also generate a tax-free income through the government’s feed-in tariff payments. Return to Solar PV range.