We do not have to stick to using fossil fuels as the main source of energy
. Our fossils fuels are depleting and if we do a proper research then wed be able to develop energy from renewable resources.
Wind power is one of the alternative energy that can be used. The wind turbines and wind farms are being developed that are both energy efficient and inexpensive. Solar energy is a very well known form of alternative energy. This incorporates gathering the solar cells and harnessing electricity from it. The solar panels these days available can be placed on the roof top of your houses. The solar energy and wind energy create no pollution. Ocean wave energy is another form of energy that has a great potential. It generates electricity from the ocean waves and then transfers it to the houses.
Hydroelectric energy is also a well known form of alternative energy. This has a big electricity generator and cleaner than the grid. There are restraints to it too. There has to be large space available for making a dam. Geothermal energy is available everywhere and is generated from below the Earths crust. This energy is generated by passing water in the earths crust, it gets heated and turns into steam that can be developed for driving the turbine engines and that generates electricity. Ethanol can also produce electricity. And one can also produce electricity from biodiesel which is created out of the oil contained in the plants like the sunflower, rapseedetc. You can also generate electricity from nuclear energy.