In September 2021, Natel conducted formal testing with PNNL on a cohort of American eel passing through the RHT test unit operating at 670 rpm under 10 m of hydraulic head. Following the test the eels were monitored for 48 hours with 100% survival.
The World Wildlife Fund, the International Federation of Consulting Engineers and AECOM featured Natel in a playbook for engineers to learn about sustainable infrastructure development.
A peer-reviewed paper written in conjunction with Alden Lab and published in the Journal of Ecohydraulics.