I think my numbers were higher when I first got my car and got a bit better after a few thousand. Perhaps bearings and such settle in a bit.So I made some progress on this. I changed the following:
1. Unplugged my Ownice T3(user for Android Auto/Apple Car Play) which creates its own WiFi and potentially contributed to excess "Everything else" in the Energy app
2. Removed the PVC tube from the rear hatch gasket which potentially may lead to insulation leak(unlikely) thus affecting Climate
3. Turned on Recirculation of air
4. Installed black roof sunshade
Setup: Outside temp 85-88F, inside temp set to 73F
Starter driving from home - a dense urban environment, with lots of stop and go traffic before hitting the freeway 2 miles later. Drove around 50 miles at speed limit on the freeway before returning home. I use hold with chill mode for driving.
Observations on energy usage - the first couple were terrible on the Wh/mi usage hitting 350+. But once I hit the freeway the numbers quickly came down with lowest usage close to 220 and average for the trip close to 250 which was also pretty much the rated value for the trip.
These results are a big improvement over my long term average of 300 - so it is good to know that there might not be anything faulty with my car overall. I think most of the improvement came from 1 and 3 above. I will go back to plugging in the Ownice and figure out its impact on usage.
I am near Somerville for reference so my drives are a bit rolling, Nothing flat as the shore nor hilly as northwestern NJ.
I bought a roof shade before going out west in June. I don't think I'm seeing any help there. And supposedly the heat pump is pretty efficient so that would be expected.
I have always used hold. I am currently trying out chill (I have boost). So far I'm not noticing any significant difference but I'm not trying to keep any accurate records either.
Up until now my lifetime would fluctuate between around 261 & 269. I think my Denver trip (which added 20-25% to my total mileage) killed that. I think the trip was in the 280-290 area. Right now I'm at 267.
I don't drive particularly slow but around here it's a max of around 50 unless I'm on an interstate which is not very often. So I probably don't get much of any speed / resistance penalty.
I do notice on a local drive that one hard acceleration will kill the m/wh on say a 10 mi round trip to the grocery store. By that I mean that I might see 265 - 270 rather than 245-255.
There was a rumor of Tesla bringing back a choice in regen. Don't know if they ever did as they did not take it away from those of us who already had it. If you have a choice make sure it is set to standard and not low.
If you are charging above maybe 90%, regen will be reduced so for the first n miles you'll be wasting energy when stopping. If you have the brake when regen is limited set to on you probably won't even notice that it is using the physical brakes (I didn't).
Mostly I wouldn't worry about it. You could make an appointment but I'm guessing they won't find anything as it isn't that bad. You seem lower than a lot of MYP reports if that helps.