Hi
I'm not sure there's a question here, but i thought i'd print some calcs i've done regarding electric costs and equivalent petrol costs. I think the numbers are right, but clever folk might see a flaw or two:
According to my Model S 90D I've done 2863 miles consuming 1198kWh in the process (I've never reset Trip B). This amounts to an average of 418Wh/mile which i put down to cold NE temps and short trips.
Looking at my last electricity bill - it cost me an average of 16.69c per kWh. So I'd done all of my charging at home, then this means charging my car cost 1198*0.1669=200$.
Petrol is 2.40$ a gallon now but has been around 2$ when i bought it. Let's call it 2.20$ on average which means I've equivalently consumed around 93.15 gallons (200/2.20), which puts my MpG at 30.7 (2863/93.15).
This seems like a very poor number. If i'd achieved the magical 300Wh/mile number - this would only be roughly 40% more efficient - giving me an effective Mpg of 42 - better, but hardly setting the world on fire.
i recall the window sticker for the Tesla giving an MPGe of 103 miles - consumption of 33KWhr per 100 miles - compared with 41Kwhr per 100 for me. This means, the MPGe number must be based on a much lower electricity cost and/or much higher fuel cost. Either way, it's complete nonsense right now.
So i guess what I'm saying is that with electricity/petrol costs where they are the Model S, relatively speaking, isn't all that efficient right now, and could in fact by quite easily beaten by many ICE models. That's kind of a surprising conclusion to me.
Thanks (to those that made it this far!)
I'm not sure there's a question here, but i thought i'd print some calcs i've done regarding electric costs and equivalent petrol costs. I think the numbers are right, but clever folk might see a flaw or two:
According to my Model S 90D I've done 2863 miles consuming 1198kWh in the process (I've never reset Trip B). This amounts to an average of 418Wh/mile which i put down to cold NE temps and short trips.
Looking at my last electricity bill - it cost me an average of 16.69c per kWh. So I'd done all of my charging at home, then this means charging my car cost 1198*0.1669=200$.
Petrol is 2.40$ a gallon now but has been around 2$ when i bought it. Let's call it 2.20$ on average which means I've equivalently consumed around 93.15 gallons (200/2.20), which puts my MpG at 30.7 (2863/93.15).
This seems like a very poor number. If i'd achieved the magical 300Wh/mile number - this would only be roughly 40% more efficient - giving me an effective Mpg of 42 - better, but hardly setting the world on fire.
i recall the window sticker for the Tesla giving an MPGe of 103 miles - consumption of 33KWhr per 100 miles - compared with 41Kwhr per 100 for me. This means, the MPGe number must be based on a much lower electricity cost and/or much higher fuel cost. Either way, it's complete nonsense right now.
So i guess what I'm saying is that with electricity/petrol costs where they are the Model S, relatively speaking, isn't all that efficient right now, and could in fact by quite easily beaten by many ICE models. That's kind of a surprising conclusion to me.
Thanks (to those that made it this far!)