Modern technologies allow to receive electricity practically from anything. Now development in the field of power industry is directed to increasing a share of renewable power sources.
Instruction
1. Electricity can be received, using wind power. It is known that winds arise in the atmosphere of Earth under the influence of the electromagnetic radiation of the Sun. They have huge energy potential. The small wind generator can be created even in house conditions, blades and the converter of mechanical energy of torsion of blades in electricity are for this purpose necessary. To receive an energy maximum, wind power stations build in coastal zones where winds blow constantly.
2. Geothermal stations are in the second place in nonconventional power. They are in places where the activity of hot springs is highest, transforming the energy which is splashed out by them to electricity. These stations have higher efficiency (efficiency), than wind, and are more reliable in respect of smoothly given energy. Unfortunately, they are even stronger tied geographically to a certain territory.
3. Anybody is surprised by tiny solar batteries in modern calculators any more. Now it is possible even to buy solar batteries for charging, for example, of the mobile phone or a small lamp in a campaign. In tropical countries it is even expedient to install solar batteries on the rooftop, but in general it is pretty expensive technology for certain consumers. In a number of the countries the state subsidizes installation of solar batteries for certain citizens with a condition that surplus of energy moved in the general power supply network.
4. Ecologists lobby use of bioenergy. Burning of household city garbage, waste of farms can be not only a power source, but also to give useful by-products: fertilizer and gas. Here it is only necessary to carry out such burning on special technology. So far this way did not get broad support of the power companies though it could in passing help to solve also problems of utilization of garbage.