A4.13 Efficient Use of Energy


Most energy is currently produced by the burning of fossil fuels. This pollutes the atmosphere, contributing to global warming, air pollution and acid rain. We can reduce energy consumption by improving the energy supply and by using energy more efficiently.

Energy efficiency is about using less energy for a task. For example, heating a room to a specific temperature requires less energy when the room is insulated against heat loss. The same temperature is achieved, simply using less energy.

Energy efficiency is cost-effective, as the need for energy is reduced so is the associated cost. It is usually achieve through technology, such as energy efficient light bulbs (which use 5 times less energy to produce the same light levels).

Energy Saving refers to methods of reducing the energy used in general. This usually refers to actions people take, such as turning equipment off when not in use.

Through both energy efficiency and energy saving, there are a number ways to reduce energy use at home and at work, such as:

  • Use energy efficient products.
  • Switch equipment off when not in use.
  • Using energy saving light bulbs.
  • Draught proofing doors.
  • Insulating lofts.
  • External wall insulating.
  • Lower the thermostat on heating and hot water heaters.
  • Fitting double-glazing.
  • Fitting a hot water jacket to the water tank.
  • Having showers instead of baths when possible.
  • Not placing a fridge/freezer next to the cooker.
  • Only fill the kettle as with as much water as you need to use.