| Return
on Investment Below are a couple of examples giving you an idea of
the huge CO2 saving and the potential revenue a Solar Photovoltaic
system will generate.
Typical 2KW system £10k
|
2KW System – 13m2 |
Year 1 |
Year 25 |
| Income
from Feed in Tariff @ 41.3p / KWh |
£709
|
£24,110 |
|
Electricity saving @ 12p / unit |
£144 |
£3,204 |
| Income
from exporting energy @ 3p / unit |
£26 |
£572 |
| Carbon
savings (Kgs) |
738
|
16,406 |
| Total
Income |
£879
|
£27,886 |
Typical 3KW system £12,500
|
3KW System – 20m2
|
Year 1
|
Year 25 |
| Income
from Feed in Tariff @ 41.3p / KWh |
£1,064
|
£36,165 |
|
Electricity saving @ 12p / unit |
£216
|
£4,806 |
| Income
from exporting energy @ 3p / unit |
£39
|
£858 |
| Carbon
savings (Kgs) |
1,108
|
24,608 |
| Total
Income |
£1,319
|
£41,829 |
Typical 4KW system £14,500
|
4KW System – 26m2
|
Year 1
|
Year 25 |
| Income
from Feed in Tariff @ 41.3p / KWh |
£1,418
|
£48,219 |
|
Electricity saving @ 12p / unit |
£288 |
£6,408 |
| Income
from exporting energy @ 3p / unit |
£52
|
£1,144 |
| Carbon
savings (Kgs) |
1,477
|
32,811 |
| Total
Income |
£1,758
|
£55,772 |
The above estimation is based on; an
inflation index at 3% and a fuel index of 8%. The calculation
assumes that use of the solar generated electricity will be 50%,
with payment made for exported electricity at 50% of the total
generated. The pitch of the panels are estimated at 30C and the
orientation is estimated south facing.
The performance of solar PV systems
is impossible to predict with certainty due to the variability in
the amount of solar radiation (sunlight) from location to location
and from year to year. This estimate is based upon the Government's
standard assessment procedure for energy rating of buildings (SAP)
and is given as guidance only. It should not be considered as a
guarantee of performance. |
