Lake Louise (the ski resort, not the lake itself) has a fleet of eBikes for rent already so this is basically already an option. They just need to make sure the hours work and market the hell out of it. IDK what the range on their bikes is but I imagine a full battery would get you up to Moraine Lake (and maybe to Lake Louise proper though the road isn't very nice to ride with cars) and back.
Plus they have Banded Peak Base Camp with awesome smoked BBQ treats after the ride.
