It helps that we have a 2.6GW pumped storage generation facility near Niagara Falls. 
In article <CAL9Qcx5PkJ1RZqjrUiKoGe=1+oOwSc6zkhPFemJGn_EV2ur=Qw@mail.gmail.com> you write:
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It helps that we have a 2.6GW pumped storage generation facility near
Niagara Falls.
It does, but all that power goes to the munis, not the commercial
company that supplies me. We do import a lot of hydro power from
Quebec. There's another power plant the same size on the other side
of the river that provides power for Toronto.
I’m familiar with the Sir Adam Beck plant, I grew up in and live in Niagara County.
Not everything produced by the NYPA goes to munis. There is a lot sold direct to businesses; last I checked roughly 5% of the generation from the Niagara Power Project is allocated for businesses in WNY in a 30 mile ring. ( Although a sizeable chunk of that goes back to the wholesale markets because there aren’t enough qualified companies to take it. )
I can guarantee that some of that power ended up with you. Every commercial supplier in NY buys from the wholesale market at some point, and a lot of NYPA power ends up there.