One of the main problems that our society is facing is the so-called climate change resulting from human activity that contributes to the so-called Global warming in which the greenhouse effect is a key phenomenon.

The European Commission has acted on the reduction of pollution and the improvement of energy efficiency which is related to the problem tackled by the project on the manufacture of renewable energy as a realistic and affordable alternative.

The Directive for the promotion of the use of energy from renewable resources, Directive 200928EC, provides that each Member State shall establish a National Action Plan in the field of renewable energy (NREAP) to achieve the national targets set in the directive itself. For Spain, these objectives are that renewable energy sources represent 20% of gross final energy consumption, with a percentage on transportation of 10%, in the year 2020.

To achieve the objectives of the NREAP it was approved the Renewable Energies Plan PER 2011-2020, which states a series of priority lines of action to achieve the objectives. In relation to hydroelectric power it is proposed the enlargement of the pumping capacity, the repowering of existing power plants and the use of hydroelectric potential in existing infrastructures, such as distribution networks and potable water supplies.

This last line fully agrees with the project idea. The possibility of developing new solutions able to take advantage of energies which actually are being waste, with the added value of being fully sustainable solutions and without producing any pollution, acquire a total relevance and interest. In this sense, the use of kinetic energy and the potential of circulating water, by collection and distribution networks whose points of collection and delivery of the water have a usable elevation difference, is one of the energy solutions to be considered as optimum. Also the use of such energy to generate clean electricity has a clear and easy way to quantify environmental benefits associated.