Energy Efficiency of Household Appliances  Printable view

Do you waste energy at home?

Fig. 1   Do you ever forget to close the door after getting something from the refrigerator? Fig. 2   Do you ever leave your home without switching off the lights?
Fig. 3   Do you ever enjoy hot-pot meals with the air-conditioner switched on? Fig. 4   DO you ever forget to turn off the tap after washing your hands?

Many of us frequently waste energy. What are the consequences if we do not use energy efficiently?

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Reasons for energy conservation

  1. In Hong Kong, a large portion of the energy we use is provided directly or indirectly by the burning of fossil fuels. When we cook food using a gas oven, or heat water using a gas heater, gas fuels are consumed. Fossil fuels are non-renewable energy sources. They were formed from the remains of dead plants and animals buried millions of years ago. The reserves of fossil fuels are limited and may run out in less than 100 years. The more fossil fuels we consume each day, the less there is left for future generations.
    Fig. 5   Air pollution has already darkened the fantastic view of our Victoria Harbour. Would you help improve the situation?
     
  2. Burning fossil fuels releases a large amount of carbon dioxide (CO2) and harmful pollutants into the atmosphere. Carbon dioxide is one of the greenhouse gases which traps heat in the atmosphere. The increase in carbon dioxide in the atmosphere is a possible cause of global warming and related climate changes. Thus saving energy may help protect the Earth and our environment.
  3. Using energy more efficiently helps save money. It also allows us to live more comfortably and improve our productivity.

In a modern city like Hong Kong, we need an enormous amount of energy to create a comfortable modern living. Nevertheless, we can still make positive contributions towards the saving of fossil fuels and protecting the environment by using energy more wisely.