Power Consumption Tables

Calculating how much power you use is the first step in working out what size solar panel(s) / wind turbine you need. We have listed a range of standard household appliances, along with a typical maximum power consumption figure in watts. Please bear in mind that these are examples only and for more accurate information, please check the actual consumption for each of your devices.

When operating 240V appliances via an inverter, you also need to consider the efficiency of your inverter. Pure sine-wave inverters typically operate at 90% efficiency, whereas modified sine-wave inverters are normally 80% efficient. If you were operating a 1000W device, you need to increase this to 1111W for a pure sine-wave inverter (1000 divided by 0.9) and 1250W for a modified (1000 divided by 0.8).

Appliance
Typical maximum power (W)
Broadband router 
10
Desktop PC and monitor 
200
Dishwasher (A rated)
1050
Electric blanket 
130
Electric drill 
900
Electric hob ring 
1400
Electric kettle 
2200
Electric oven 
2200
Electric shower 
10500
Fan heater 
3000
Freezer (A rated)
150
Fridge (A rated) 
120
Games console 
45
Halogen heater 
1200
Immersion heater 
3000
Inkjet printer 
60
iPad
15
iPhone
5
Laptop computer
60
Light bulb (Halogen)
60
Light Bulb (LED)
5
Light bulb (compact fluorescent)
20
Light bulb (Tungsten)
100
Light bulb (Fluorescent strip)
36
Microwave 
800
Music centre 
75
Oil filled radiator 
2500
Radio (DAB)
4
Satellite/freeview/cable box 
40
Steam iron 
1800
Telephone (2 digital handsets) 
7
Television (21" LCD)
100
Television (32" LCD)
170
Television (42" Plasma)
280
Tumble drier 
2500
Vacuum cleaner 
1200
Video/DVD player/recorder 
40
Washing Machine (A rated)
3000