Energy plays tremendous role in the life of mankind. Its production and consumption creates the base for all processes of life on the Earth. Besides food and air, the energy constitutes one of the most important material requirements of people. The use of energy known allowed to achieve the contemporary level of culture and civilization and shaped the current state of the world's economy as it exist today. Rapidly increasing consumption of energy has also caused the negative consequences for the environment. The emission associated with fossil fuels burning were the reason for the appearance of acid rains and substantial degradation of the environment. They also contributed to the creation of greenhouse effect which has the negative impact and consequences of global warming and climate changes. The energy crises and disclosure of the energy barrier of economic development caused the significant transition of the views concerning the fuels and energy economy. The world understood that the oil supply capabilities are limited and the era of cheap oil became the past. It was recognized that the fuels and energy conservation, and particularly oil conservation, is the necessity.
According to the classification applied by the
World Energy Council, the world’s energy resources have been divided into two categories: renewable and non-renewable. The renewable energy sources include: hydropower, fuel wood, biomass other than woods, solar energy, geothermal energy, wave and tidal energy, oceans’ thermal energy. Our environmental sector has the knowledge and the expertise of utilizing the Solar and Near-Surface Geothermal Energy to reduce energy consumption substantially. This is achieved by implementing construction of low energy housing, and minor external modification to existing residential and commercial buildings.