A typical UK installation is about '2 kilowatts peak' which will generate around 1,700 kilowatt hours (kWh) a year in a sunny location in East Anglia on a south-facing roof. 50% of the electricity generated is deemed to have been exported by the Feed in Tariff agreement which qualifies for an additional payment of 3.1 pence per kilowatt hour.
In the example below we have assumed that 70% of the electricity generated is used within the property.
2 kilowatt peak installation in East Anglia:
|
Annual output
|
1700 kWh
|
|---|---|
| FIT | 43.3p per kWh |
| Total value of FIT | £ 736.10p |
| Used in the home | 1190 kWh |
| Savings from not buying supplier electricity | 13p per kWh |
| Money saved | £154.7 |
| Electricity exported | 850 kWh |
| Export payment | 3.1p per kWh |
| Value of export payment | £26.35p |
| Total value from all three sources | £ 917.15p |
| Total return | £ 917 |