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Electrical Knowledge:
Did You Know ??


Hi everyone!

Do you know what contributes to your monthly electricity bill?

For those in Semenanjung Malaysia, TNB tariff is approximately 30 sen to 45 sen per kilowatt-hour (kWh), depending on your usage. The more you use, the more expensive the rates!

Below is a short table of common electrical appliances, and a rough estimate on how much they cost to run for every hour.

(The cost may seem low, but remember, even using 3 sen/hour means that you will be paying about RM 20 a month if you leave it on for 24 hours a day!)


ApplianceEstimated cost (sen/hour)
Fluorescent lights1 sen
Wireless Router1 sen
ASTRO decoder + dish2 sen
Table Fan 2 sen
Incandescent lights3 sen
Ceiling Fan3 sen
Computer (laptop)5 sen
CRT TV (21 inch)3 sen
LCD TV (32 inch)7 sen
Computer (desktop)9 sen
Plasma TV (42 inch)10 sen
Washing Machine15 sen
Vaccuum Cleaner17 sen
Electrical Clothes Iron33 sen
Electric Hot Plate46 sen
Air Conditioning46 sen
Electric Water Kettle50 sen