The basic aim of conservation of electricity is to bring down electricity cost. You will be surprised to know that by simple house keeping measures you can bring down your electricity bills by 25 – 30%.
Set thermostat at 25ºC for optimum cooling at the least cost therefore, for each degree of more cooling will result in more energy use by 3 – 5%.
Clean AC filter every month. A dirty air filter reduces airflow thereby damaging the unit. Moreover clean filters use less energy.
Operate the ceiling fan in conjunction with window AC to spread the cool air more effectively throughout the room and operate the AC at higher temperature thus saving energy.
Use film / tinted glass on windows.
Plant trees or shrubs to shade air conditioning units but not to block the airflow. A unit operating in the shade uses 10–15% less electricity than the same one operating in the sun.
A roof garden can reduce the load on air conditioner.
Prefer air conditioners having automatic temperature cut off. A good air conditioner will cool a room in about 30 minutes. So use the timer accordingly.
Set your thermostat as high as comfortably possible in the summer. The less difference between the indoor and outdoor temperatures, the lower will be energy consumption.
Leave enough space between your air conditioner and the walls to allow better air circulation.
Don’t place lamps or TV sets near your AC thermostat. The thermostat senses heat from these appliances and runs for longer period than necessary.
