Renewable energies characteristically use a source of energy which is
supposed to be inexhaustible and not release CO2. Therefore, they seem to
be ideal solutions to this dual issue of production and preservation of the
environment.
Some available energy sources are mechanical ocean energy which use marine
currents or waves and hydropower energy using river currents.
This report is a state of the art, including market and technologies potentially used
to produce energy from currents and waves. A focus on regulation in France is
proposed to complete the survey.