we can save energy by doing some following tips . first of all we should turn off all electrical devides when we not using them . this the simplest way to reduce the eletric bill . next , cleaning long-termequipment is essential to reduce power consumption. Dust in the equipment will reduce the ability to exchange heat and wind, which leads to waste electricity. Morever, we should save water by taking showers instead of baths or turning off the water when you do not use it. All in all, because our energy is limited we need to reserve it for the future generations .