I got an Ego 24" dual stage model ($1300? at Lowes). Driveway is 100' long or so...It gets wide near my garage,
Used up 60% of the twin batteries doing it and my walkway. I would guess a bigger/heavier storm would drain them completely but I have additional batteries. It sadly hasn't been really tested yet. All of my events have been powdery
If I could afford it, I would have gotten the next model up which has steering more like my old gas powered one. The 28" model might also be good, but that one is $$$