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.
The US Patent and Trademark Office recognized the FishSafe™ RHT patent for being a renewable energy invention that addresses both climate change and biodiversity loss.
Natel Energy is featured in the Water Power Technology Office 2021-2022 Accomplishments Report for three different projects! Read more on pages 13, 16, and 17.