¨ Low maintenance;

¨ Doesn't possess mobile parts (there are not wastes);

¨ Doesn't consume fossil fuels;

¨ Doesn't pollute nor it produces noise (Reliability);

¨ Growth modulável (Simplicity);

¨ Facilidade in the displacement and transport;

¨ Independent ¨ of the vulnerabilidade of the electric net in critical facilities.