Sterling summarizes Natel's fish passage research and emphasizes how the RHT can positively impact fish inthe St. Croix and St. Lawrence watersheds.
https://www.ijc.org/en/dam-turbine-design-helps-fish-move-safely-downstream
The DOE's Office of Energy Efficiency and Renewable Energy touts Natel's FishSafe RHT as a sustainable innovations success story.