With 15% of world electricity production, hydropower remains the most important renewable source of electricity. Between very small and very large hydro, of the “three gorges” type in China, this sector is made up of installations ranging from the run-of-river to the reservoir dam or to the pumped energy transfer station (STEP). Its deposits are still considerable in Africa, Asia and Latin America. The rehabilitation of old facilities wins in Europe.
Hydroelectricity is based on a simple concept: to take advantage of the gravitational energy produced by the fall and the flow of bodies of water in order to convert it into mechanical and then electrical energy by means of a turbine-generator set. The creation of a reservoir upstream allows the
Claude Rebattet
BRUSA-PASQUE Bernard- Niveau de lecture
What do they have in common, between a small hydroelectric power plant built on a natural or artificial weir in a river, with a capacity of a few hundred kW, and the Three Gorges Dam power plant in China, with a capacity of 22,500 MW, the equivalent of five nuclear
- BRUSA-PASQUE Bernard
- Niveau de lecture
With a share of around 60% of the world’s renewable electricity production, hydropower is the leading renewable source of electricity. It is also considered as a clean energy insofar as its exploitation does not produce any waste. However, several projects have been, or still are, the subject of strong criticism.
- BRUSA-PASQUE Bernard
- Niveau de lecture
In a power system with increased need for flexibility, wind and solar power are characterised by considerable volatility across different scales and their output cannot be predicted with certainty. In order to deal with the resulting variations and forecast errors, system operators as well as electricity markets will need to
- Niveau de lecture
Except for specific cases, the rehabilitation of a hydro turbine generally concerns rather old machines for which most of the components have a strong potential of improvement. It is therefore usual to take advantage of the technology progress amassed from the time of the initial machine, to consider all the
MICHEL Bernard- Niveau de lecture