ECObulb Scheme

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1. Two bearing shaft line with fully autonomous bearings, lubricated by biodegradable oil and grease.
2. Minimum maintenance through removal of the step-up gear and its large quantity of lubricating oil.
3. High hydraulic efficiency thanks to the axial flox technology and a small ratio between bulb diameter and runner diameter.
4. Excellent electrical efficiency through the use of the synchronous technology.
5. Full mechanical and electrical integration resulting in a simplified design and reduction of parts.
6. Generator cooling using river water through the bulb skin, without external auxiliary systems
7. Reduced civil work costs, both in excavation and concreting, thanks to the axial unit type, the high specific discharge and excellent cavitation resistance
8. Possibility to tap very low head potential with economic results.