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Renewable-energy sources are considered to be the energy that is collected from sources that may be regenerated in a lifetime. The renewable-energy sources branch out in five types: wind power, hydropower, solar energy, geothermal energy and bio energy. However, in this paper, we are analyzing the water, solar and wind, since those three are the most exploited in Romania. Wind power refers to produce electric power, by mechanical powered generators when air flows through wind turbines. Alternatively, to fossil fue...

Nowadays, after periods of time without precipitation, more and more frequent rains are coming in with very high flows in very short time. In case of extreme precipitation phenomena, sewer networks can no longer take rainwater flows, which often occur with large damages, often with loss of life. Drinking water is not renewable. That is why it is important to protect drinking water sources by using rainwater more efficiently. By recovering, storing and using rainwater, costs are reduced by treating and transporting...

The main purpose of this study is to highlight the actual state of energy production and consumption in Romania and to emphasize where there is potential for either reducing the greenhouse gas emissions by using more efficient heating and cooling systems for buildings or reducing the greenhouse gas emissions by using less fossil fuels and more renewable energy sources that can be tapped in Romania. In Romania despite a good thermal insulation degree for newly constructed buildings in the past 5-10 years there is s...