Alden Research Labs and Brookfield Hydropower Station

Requirement

Reduce significant fish kill by allowing migrating fish to travel safely downstream through the turbine blades of a hydroelectric generator.

CN Solution

Develop a new “fish-friendly” turbine design that allows a larger passage for smoother water flow and a more uniform pressure distribution to lower levels of damaging shear stress and provide an acceptable balance between turbine efficiency and fish survivability.

Benefit

Efficient power generation plus 98% fish survivability.