Photo: NEA, Singapore Environment Council website, HDB, Internet

1. AIR-CONDITIONER
Use a fan instead of an air-conditioner and save about $650 a year.

Set the temperature higher - every degree raised saves about $20 a year.

Choose an energy-efficient model. A four-tick model saves around $350 a year compared to a one-tick model.

2. COMPUTER
Enable your computer's energy-saving features to switch to hibernation mode or switch off completely when not in use.

3. WINDOW
Draw the curtains or blinds during the hottest part of the day to keep the house cool, especially for west-facing windows.

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