Nov 21, 2017 Last Updated 9:00 AM, Nov 14, 2017


  • Turn off lights that are not in use.
  • Turn on security lights as late as possible and turn them off as early as possible. In the tropics, visibility becomes poor after 5:30am in most of the times. It is therefore a waste of electricity to turn on lights at 6pm and turn them off at 6am the following day. At least one hour savings a day is a lot in a year.
  • Buy energy efficient lamps. Compact fluorescent lamps (CFLs) and light emitting Diode (LED) lamps are very efficient; very bright, consumes less energy, generates no heat and last longer than incandescent lamps. In deciding what CFL to buy, let the yellow label and the stars be your Guide. The more the stars, the more efficient it is.
  • Do not buy CFL that has no label on it.
  • If you replace one inefficient 60 watt incandescent bulb with a 15 watt CFL and use it for 5hours a day, you save about 82 kWh of electricity and 0.05 Tc02 in a year.
  • The (ballast) choke in the fluorescent light should be removed if the lamp is gone dead. The choke consumes up to 11 watt if it remains in the system.
  • Use brighter colours for rooms since they do reflect light and ensure better illumination than dull colours which tend to absorb light.