> electricity prices in $/kWh range from around 9 to around 34 You mean .09 to .34 but I agree there's a lot of variation. I pay about 13 cents at home and my

> electricity prices in $/kWh range from around 9 to around 34 You mean .09 to .34 but I agree there's a lot of variation. I pay about 13 cents at home and my fuel bill is around 1/4 the $ per mile in the Model Y as it is for my ICE car when I recharge at home. Superchargers are much more expensive; they're typically a minimum of 25 cents per kWh. But even on long road trips using supercharger energy I still pay a lot less per mile than I would for gasoline unless I drive over 80 mph (wind resistance is the efficiency killer for EVs.) If you want to run the numbers yourself, a Model Y typically can go a mile on 250-300 Wh if relative airspeed is under 60 mph. (I look for tailwinds with windy.com on road trips. I find this fun but I don't expect that's a universal emotion.) I have not seen a trip planner like you describe. The Tesla will tell you the supercharger rates before you arrive so you could choose a different one but that's about it. Tesla tries very hard to keep you from running out of energy. Once I drove away from a supercharger toward the middle of nowhere. My destination was a guest house that I knew had a Level 2 charger. But the car didn't know that. As I approached the halfway point the car started nagging me "You are approaching the point of no return. Turn back NOW to avoid running out of energy." I hit 'Ignore', laughed and kept driving. The car was wrong but I was grateful it had my back.