Alternative energy sources are considered a next step in the evolution of the energy industry. Many scientists believe that in the future humanity will be able to use only the energy derived from these kinds of sources. Some of these forms of energy, such as solar or wind energy are available for individual use. Photo: depositphotos. Solar panel on a red roof The use of solar panels can not only save your money, but also makes it possible to get a sort of the energy independence. You... [read more]