The most recent Natel/Pacific Northwest National Laboratory test of 186 large rainbow trout measuring up to 500 mm (19. 7 inches) in length, found no meaningful difference between the fish passed through Natel’s 1.9 meter (roughly 6 feet) in diameter turbine and the control group, indicating that the RHT allows safe passage of some of the largest fish ever successfully passed through a compact hydro turbine.
In this piece from DOE's Water Power Technologies Office Natel features as an example of a novel solution to improve downstream fish passage.
This photo of Staff Mechanical Engineer Kelsey Seto by Staff Mechanical Engineer Johannes Santen won 5th place of all submissions in the USAID E4SEA Women in Energy Design and Photo Contest.