How big can a fish be and still pass through the Restoration Hydro Turbine (RHT) safely? Pretty big! This passage test of 186 rainbow trout measuring up to 500 mm (~19.7 in) in length found no meaningful difference between the fish passed through a 1.9 m (~ 6.2 ft) diameter RHT and the control group, who were not passed through any turbine.
This fish passage test was conducted jointly by Natel Energy and Pacific Northwest National Laboratory (@PNNL) in the spring of 2022, at Natel's Monroe hydropower plant in Culver, Oregon.
For more info about Natel's fish passage testing and peer-reviewed papers, visit our fish passage page.
We are thrilled to announce that our FishSafe™ turbine designs have won the Best in Energy Tech Award from the Global Tech Awards!
Today we’re unveiling our new logo, created with the help of the stellar team at McFadden & Thorpe.
The presentation that Sterling and Abe gave at the Sustainability in Hydropower Conference at the Norwegian University of Science and Technology this spring is now online. Check it out!