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Reduce electrical appliance energy costs
Other appliances use 12% of UK domestic electrical energy.
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The list and versatility of electrical appliances increases each year, they all consume electricity.
A few need to be left on continually, but the vast majority should turned off at the wall socket when
not in use. It can be surprising how many
small appliances 'leak' electrical energy.
There is an argument to the effect that electrical appliances should each be supplied with a warning label,
'Using this equipment threatens global warming, use it sparingly'.
Much electrical equipment has one or more standby modes. Manufacturers are being persuaded to make their
equipment, and especially the standby mode, more energy efficient. Older equipment is often very energy
inefficient, especially in standby mode. The author has some stereo equipment that, in standby mode,
consumes more than 60% of the energy it uses when being used.
What can I do to reduce electrical appliance energy cost?
- Turn all appliances off when they are not being used, the amount of
electricity used by appliances
- Do not leave appliances on standby. It is estimated that electrical equipment typical power consumption
uses 5% of total domestic electricity. If any appliance has a power module that plugs into a wall or is a
separate unit, this typically costs £4 a year even if the appliance is turned off. If you have a number
of telephones a rechargeable TV and an electric toothbrush
unplug them or switch them off
at the wall socket when not in use.
- Computer equipment, computer speakers, LCD monitors and printers consume a surprisingly high amount of
energy when shut down. Power them via a switched outlet or a switched power strip. A typical computer
system costs £40 a year in standby mode or in shut down mode. A laptop charger costs typically £4 per
year when plugged into the main supply but not connected to the laptop.
- Central heating control systems typically continually consume 50 to 70watts, this costs around £50 a
year to run. In the UK heating is seldom required in the summer, when the system is not heating water,
and especially if you are away from home for days or weeks, turn the system off.
- Newer appliances are far more efficient than older ones, manufacturers continually work on energy
efficiency improvements and manufacturers guidelines are being tightened.