Alstom bulb hydraulic turbine
max. 60 MVA
Alstom Power Generation
Alstom Bulb units provide the most efficient solution when faced with heads up to 30m. Bulb units have almost replaced Kaplan turbines for new low head power plants.
With more 309 Bulbs installed worldwide, Alstom has outstanding knowledge and experience in design, manufacturing, installation, commissioning and management of complex Bulb projects, whatever the environmental conditions.
Most efficient solution for low heads up to 30 meters
Negligible need for flooding of landscape due to run-off-river type of the operation
Reduced size, cost and civil works requirements of up to 25% thanks to the straight water passage in the draft tube that improves the hydraulic behaviour of the bulb unit and also results in a lower need for excavation
Meet the needs of any particular application - our Bulb turbines also operate as pumps in both flow directions for tidal plant applications
Sluice operation may also impact favourably both the hydro mechanics and the navigability close to the dam