Solar PV (photovoltaic) uses energy from the sun to create electricity to run appliances and lighting. PV requires only daylight, not direct sunlight to generate electricity and so can still generate some power on a cloudy day. Photovoltaic systems use cells to convert sunlight into electricity. The PV cell consists of one or two layers of a semi conducting material, usually silicon. When light shines on the cell it creates an electric field across the layers causing electricity to flow. The greater the intensity of the light, the greater the flow of electricity. PV cells are referred to in terms of the amount of energy they generate in full sunlight, know as kilowatt peak or kWp. The benefits PV systems
- no greenhouse gases.
- Start Earning a 25 yr guaranteed income via the governments incentive of the Feed in Tariffs.
- Reduce your energy bills and sell any unused electricity back to the grid.
- Save energy, money and reduce co2 emissions
- Being green is the future
| Estimated Return on Investment - Domestic | |
|---|---|
| Cost of 1.90kWp system (ex VAT) | £5,735.67 |
| Income from feed-in tariff,1,660Kwh @43.3p(25yrs, index linked) | £718.78 |
| Electricity savings from system output (if 50% used in building@ 14p) | £116.20 |
| Income from 50% of electricity exported (@ 3.1p) | £25.73 |
| Total Savings plus Income | £860.71 |
| Payback Time | 6.66 years |
| Approx Accumulative Income over 25yrs | £28,500.00 |
| Estimated Return on Investment - Business | |
|---|---|
| Cost of 49.95kWp system (ex VAT) | £129,960.00 |
| Income from feed-in tariff, 42,877Kwh @ 32.9p (25yrs, index linked) | £ 14,106.53 |
|
Electricity savings from system output (if 100% used in building @ 8p) |
£ 3,430.16 |
| Income from 0% of electricity exported (@ 3.1p) | £000.00 |
| Total Savings plus Income | £17,536.69 |
| Approx CO2 Savings | 23,321 kg/yr |
| Payback Time | 7.4 years |
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