Energy Saving Tips

Category 2 Measures

Below are measures that could achieve significant energy savings with a reasonable cash outlay. The payback period is typically less than three years.

Lighting
  • Separate the lighting controls for the window perimeter and that for the interior. Lighting at the window perimeter can be turned down or off on a sunny day. (10-30% saving)
  • Replace tungsten lamps with compact fluorescent lamps affixed with Energy Labels. (about 70% saving)
  • Replace fat tubes (T10 or T12 fluorescent lamps) with thin tubes (T8 fluorescent lamps). (10% saving)
  • Replace conventional electromagnetic ballasts of fluorescent lamps with electronic ballasts. (20-40% saving)
  • Replace conventional "Exit" signs with LED "Exit" signs. (90% saving)

Office Equipment

  • Use 7-day timer switch to turn off all office equipment after office hours. (5-20% saving) Please click here for detail.
  • Change ordinary sockets to switch-sockets to turn off supply to equipment completely when not in use. (5-20% saving)

Air Conditioning (AC)

  • Install Venetian blinds at windows to adjust the penetration of sunlight to suit different seasons. (10% saving)
  • Report and request maintenance staff to check and adjust the system if cold spots are located. (10-30% saving)