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What is PV Solar Systems
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Generate cheap, green electricity from sunlight

Solar panel electricity systems, also known as solar photovoltaics (PV), capture the sun's energy using photovoltaic cells. These cells don't need direct sunlight to work – they can still generate electricity on a cloudy day. The cells convert the sunlight into electricity, which can be used to run household appliances and lighting.

 

The benefits of solar electricity

  • Cut your electricity bills. Sunlight is free, so once you've paid for the initial installation, your electricity costs will be reduced.
  • Get paid for the electricity you generate. The UK government’s Feed-in Tariff scheme pays you for the electricity you generate, even if you use it.
  • Sell electricity back to the grid. If your system is producing more electricity than you need, you can sell the surplus back to the grid through the Export Tariff scheme.
  • Cut your carbon footprint. Solar electricity is green renewable energy and doesn't release any harmful carbon dioxide or other pollutants. A typical home solar PV system could save over a tonne of carbon dioxide per year – that's more than 30 tonnes over its lifetime.

 

How do solar panels (PV) cells work? 

PV cells are made from layers of semi-conducting material, usually silicon. When light shines on the cell it creates an electric field across the layers. The stronger the sunshine, the more electricity is produced. Groups of cells are mounted together in panels or modules that can either be mounted on your roof or on the ground.

The power of a PV cell is measured in kilowatts peak (kWp). That's the rate at which it generates energy at peak performance in full direct sunlight during the summer. PV cells come in a variety of shapes and sizes. Most PV systems are made up of panels that fit on top of an existing roof, but you can also fit solar tiles.

 

Solar tiles and slates 

Solar tiles are designed to be used in place of ordinary roof tiles. A system made up of solar tiles will typically cost about twice as much as an equivalent panel system. Solar tile systems are not normally as cost-effective as panel systems, and are usually only considered where panels are not considered appropriate for aesthetic or planning reasons.

 

Cost, savings and maintenance

 

The way we calculate the amount a Solar PV system will generate is by multiplying the size of your Solar system by the number of daylight hours in your area. For example, if the total annual light hours in your area are 1000 and you have a 4KW system installed on your roof, then your system is likely to generate in the region of 4000kws per year. To find out exactly what size system we can fit on your roof and the output of that system then we recommend arranging a free consultation with one of our qualified advisors.

 

Other factors that affect PV installation costs are:

  • The more electricity the system can generate, the more it costs but the more it could save.
  • Larger systems are usually more cost-effective than smaller systems (up to 4kWp).
  • PV panels are all about the same price per kWp, but PV tiles cost much more than a typical system made up of panels.
  • Panels built into a roof are more expensive than those that sit on top.

 

Financial support 

Solar PV is eligible for Feed-in Tariffsand you will earn a tariff for each kWh of electricity generated by your system. You will also receive another tariff for each kWh of electricity you export. 

 

This technology is an eligible measure under the UK government’s Green Deal which is a financing mechanism that lets people pay for energy-efficiency improvements through savings on energy bills.

 

Maintenance 

In the UK panels that are tilted at 15° or more have the additional benefit of being cleaned by rainfall to ensure optimal performance. Debris is more likely to accumulate if you have ground mounted panels.

Once fitted, your installer should leave written details of any maintenance checks that you should carry out from time to time to ensure everything is working properly. This should include details of the main inverter fault signals and key trouble-shooting guidance. Ideally your installer should demonstrate this to you at the point of handover. Keeping a close eye on your system and the amount of electricity it’s generating (alongside the weather conditions) will familiarise you with what to expect and alert you to when something might be wrong.

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PURE ECO SYSTEMS LTD.
106 Phase 2, Plymouth Science Park, PL6 8BX
01752 694 984 or 01752 694 969 - info@pureecosystems.co.uk

We are situated in the state of the art science facility at Plymouth Science Park. If you would like more information about having solar energy at your home, please feel free to get in touch.