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  2. About
    Cool the World

    24th June 2010

  3. Lesson plans
    and ideas

    Primary schools

  4. Lesson plans
    and ideas

    Secondary schools

  5. What can I do?
    Ideas for pledges

    Children

  6. What can I do?
    Ideas for pledges

    Adults

  7. Background information on climate change

    Parents / teachers

How much CO2 does each appliance emit?

The table below should give you an idea of which household appliances contribute the most to your energy bills and to your carbon footprint.

Appliance

Usage

Per Use

Cost per year

kg CO2 per year

Microwave Oven

Twice a week

0.945 kWh per use( based on 1.39 kWh for full power and 0.5 kWh for defrosting)

£9.07

39

Washing Machine

Every other day

EU energy label A-rated gives an average consumption at 40°C using a 2kg load to be 0.63 kWh

£11.78

51

Electric Tumble Dryer

Every other day

2.50 kWh per cycle
Based on an average load capacity of 4.76 kg of dry laundry

£46.75

201

Kettle

4-5 uses per year

0.11 kWh per use based on heating 1 Litre of water

£16.90

73

Gas Oven

2-3 uses per week

1.52 kWh per use

£7.60

38

Gas Hob

1 use per day

0.9 kWh per use

£12.16

61

Electric Oven

2-3 uses per week

1.56 kWh per use

£21.08

91

Electric Hob

1 use per day

0.71 kWh per use

£25.91

111

Dishwasher at 55°C

2 uses per week

1.07 kWh per use

£11.10

48

Dishwasher at 65°C

2 uses per week

1.44 kWh per use

£14.94

64

Fridge-Freezer A ++ spec

24 hours a day

206 kWh per year

£20.60

89

Fridge-Freezer A+ spec

24 hours a day

270 kWh per year

£27.00

116

Fridge-Freezer A spec

24 hours a day

408 kWh per year

£40.80

175

Standard Light Bulb

4 hours a day

100 W

£14.60

63

Low Energy Light Bulb

4 hours a day

18 W

£2.63

11



TV comparisons (including cost / CO2 emissions when left on standby):


Appliance

Usage

Per use

Cost per year

kg CO2 per year

Primary TV – CRT (Cathode Ray Tube) 34-37 inch

On Power
6.5 hours a day

198.5 W

£47.09

203

Primary TV – CRT (Cathode Ray Tube)

Standby
17.5 hours a day

4.2 W

£2.68

12

Primary TV – LCD 34-37 inch

On Power
6.5 hours a day

211.1 W

£50.08

215

Primary TV – LCD

Standby
17.5 hours a day

1.8 W

£1.15

5

Primary TV - Plasma 34-37 inch

On Power
6.5 hours a day

263.9 W

£62.61

269

Primary TV - Plasma

Standby
17.5 hours a day

3.6 W

£2.30

10

Primary TV – Rear projection 34-37 inch

On Power
6.5 hours a day

192.3 W

£45.62

196

Primary TV – Rear projection

Standby
17.5 hours a day

2.0 W

£1.28

5

Digital TV Adapter, Terrestrial

On Power
6.5 hours a day

7.1W

£1.68

7

Digital TV Adapter, Terrestrial

Standby
17.5 hours a day

6.4 W

£4.09

18

Digital TV Adapter, Terrestrial – Recorder

On Power
6.5 hours a day

17.6 W

£4.18

18

Digital TV Adapter, Terrestrial – Recorder

Standby
17.5 hours a day

11.3 W

£7.22

31