Electricity Consumption

Energy Consumption

While it is fine to say “let’s reduce our power consumption”, often we may not have much idea of the typical total consumption of an individual appliance over a period of time:

  • Work out (often found on a label at the back or underneath an appliance) what the item’s power consumption is, and then multiply it by typical hours used per month (assuming your electrical bill arrives monthly).
  • (Even easier if your appliance has an Energy Rating sticker, showing typical kWh per year.)
  • Now, from your electrical bill, find out your cost per kWh and multiply the above figure by your cost per kWh.
Electricity Account

[A typical monthly electricity account for my household]

Electrcity discount

[Minus the 22% discount]

  • You can also buy a power consumption meter to plug into your power points.Power Consumption Meter
  • A useful list showing the power consumption of typical household appliances is provided on the Daftlogic website.
  • Remember that the worst offenders may not always be the power-hungry culprits we most suspect, once the time factor is considered. To take a contrived example, that power-guzzling 1000 watt belt sander you have stashed in the garage may only be used for 2 hours per month (2 kWh total). On the other hand, your economical 150 watt 25 inch colour TV might easily average 180 hours per month (27 kWh).
  • One power-saving move I made a while ago was shifting my work from a desktop computer (100 – 450 watts) onto a laptop (50-100 watts).
  • As in my example shown above, your electricity retailer may offer a substantial discount if you save them the trouble & expense of mailing out printed accounts. In my case I receive an impressive 22% discount just because I opted to pay online.

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