This article from the Water Power Technologies Office includes a photograph of Natel's technology and encourages the adoption of turbines that are safe for fish to pass through.
Abe and Sterling explain how the RHT works, how we know it works, and where it's going. With special emphasis on eel safety and applications for the St. Lawrence River. Hosted by the River Institute.
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!