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.
2021 was a year of validation, bracketed by certifying our Freedom Falls plant as a Low Impact Hydro Installation, and by a suite of successful through-turbine fish passage tests in Q4.