It’s not just the loss of hydro power, it’s going to cut water availability upstream of the dams.
They need to at least introduce a bunch of beaver to get that back, but I’d have loved to see one of those adaptions to help salmon past the dams instead of this. We can’t count on everything returning naturally to how it was 100 years ago before the dams.
This sounds great, I just hope they thought it thru first.