I’ve tested this on an extremely steep block in seattle. This was about 8 years ago in a plug-in Prius. Distance around the block was about 0.25 miles, one sid

I’ve tested this on an extremely steep block in seattle. This was about 8 years ago in a plug-in Prius. Distance around the block was about 0.25 miles, one side generating a lot of range, the other side eating it up because I’m going back uphill. On each cycle, I would lose an extra 0.1miles of range over what I experienced on flat ground. It’s actually very interesting to me that while driving that car, I developed a sort of feel for how trading potential and kinetic energy affected my available range, and I had an imaginary boundary drawn in my head that defined all the places where I’d be able to make it home “for free” that was kind of like a topo map. In particular, if I managed to crest the hill where Canlis sits on highway 99, I knew that despite all the ups and downs in between me and home, I’d be able to make it there without having to fire up the gas engine. :D