Power energy is in great crisis. The reason can be over-consumption of electricity. So, it is extremely important to decrease consuming non-renewable sources of energy and to turn to renewable ones. Renewable sources can never be exhausted and are harmless to the environment such as solar energy, hydro energy and wind energy.
Solar energy means collecting energy from sunlight and it is known that sun can not be exhausted. It can be used for heating water to vapor. These vapors make turbines to move and produce energy. Solar energy could be very useful in houses for heating, lighting and cooking too. It is said cooking with solar energy is very healthy. This is very popular and effective method. It doesn’t harm our environment and it is almost free. You will only have to pay for the equipment to be installed. As we said solar energy won’t run out.
Hydro energy is produced from the running water. Rivers, waterfalls and dams can be used to generate hydro power. Many different electrical devices could use this type of energy. Hydro energy is renewable like solar energy is, it doesn’t make any waste or gas emissions and it is more reliable than solar energy – water can be stored in dams. That is why hydro electrical stations are built near running water. But using water energy can harm fish and other living organisms in the rivers.
Wind energy is used through ages. People made windmills long time ago, used wind to sail their boats. And this kind of energy is very convenient for generating electricity because it is a renewable resource, completely harmless to environment.
If we wish to keep our environment safe, healthy and pollution free for the coming generations we must face toward inexhaustible sources of energy
