| Item - Enter
the item you are costing, e.g. Light bulb |
|
| Current rating in amperes. |
Amps |
| Voltage Usually
230 Volts |
Volts |
| Watts/1000 = kilowatts or
kW |
kW |
| Kilowatts x Hours = Kilowatt
Hours or kWh |
kWh |
| Cost of electricity (in pence per
kWh ) Look how much they charge you |
pence |
| kWh x pence = Cost
to run the Item for 1 month |
pence |
| Divide by 100 to get to
Cost in £'s to run Item for 1 month |
|
| Number of the same Items
in the house |
Items |
| Cost to run all
such Items in house for 1 month |
|
