Non-renewable energy sources
Non-renewable sources of energy are the sources that are not replenished or replenished very late for human measures by natural processes. Non-renewable energy sources mainly include coal, oil and natural gas, also known as fossil fuels. Of course, nature does not stop creating either coal or oil. But if we consider that humanity consumes as much fossil fuel every day as nature can create in about a thousand years, we now perceive the concept of renewable energy.
Coal
Oil
Natural gas
Nuclear energy
Renewable energy sources
Renewable Energy Sources (Renewable Energy Sources) have defined energy sources that are abundant in the natural environment. It is the first form of energy that man used before turning intensely on the use of fossil fuels. RES is practically inexhaustible, its use does not pollute the environment and its exploitation is limited only by the development of reliable and economically acceptable technologies that will aim to freeze their potential. Interest in the development of these technologies first emerged after the first oil crisis in 1974 and was consolidated after awareness of the world's major environmental problems over the last decade. For many countries, RES is a domestic source of energy with favorable prospects of contributing to their energy balance, contributing to reducing dependence on imported imported oil and enhancing the security of their energy supply. At the same time, they contribute to improving the quality of the environment, as it has now been established that the energy sector is the industry primarily responsible for environmental pollution. The forms of renewable energy are:
● The sun - solar energy, with active solar sub-systems, passive solar systems and photovoltaic conversion
● The wind - wind energy,
● Hydroelectric power, limited to small hydroelectric power of less than 10 MW,
● Geothermal - geothermal energy: high and low enthalpy,
● Biomass: thermal or chemical energy with the production of biofuels, the use of forest residues and the utilization of industrial agricultural (plant and animal) and municipal waste,
● The seas: wave energy, tidal energy and ocean energy from the surface temperature and deep water temperature difference.