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Hydraulic turbine / Kaplan - max. 130 MW
Alstom's Kaplan turbines are mainly used in low head applications, ranging from 15 to 50 meters, and with the outputs of up to 130mw. Due to double regulation, high efficiency is guaranteed in various head and discharge/output. The vertical config of these turbines allows a larger runner diameter (over 10m), thus the unit power can be increased. By doing this the number of needed units is lowered. These turbines are often used in large rivers, and have a fish friendly design that improves the survival rate during migration. The turbines have a minimal risk of water pollution and oil leakage.