![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
3. Turbines
The choice of turbines is essential, and they are very different from those used in conventional hydroelectricity. Load can vary greatly, affecting efficiency, and two-way operation or pumping may be required. The cost of civil engineering per kW can also vary greatly with the choice of turbines, as well as construction and programming facilities. Finally, a different optimal turbine may be required for each type of pond use. The optimization of turbines and the corresponding civil engineering seems to be an essential element of optimization for the coming years, and could be applied worldwide.
The horizontal-axis bulb turbines at La Rance have been in operation for 50 years, and are designed to operate as turbines or pumps in both directions. They are therefore quite complex and costly, and their efficiency - very good for turbines in one direction under high load...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Energy resources and storage
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Turbines
Bibliography
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference