I’ve had my M3 since 9th November and only just ticked over the 1,000 mark on the odometer (not many miles I know, but living in and around London, I drive around 5-6k miles a year).
Looking at the Lifetime trip computer readings, it says I’ve done an average 304 Wh/mi and consumed 307 kWh after exactly 1,010 miles.
If I did this all with home charging it would’ve cost me 13p per kWh on my electricity traffic with Bulb energy, making it a total of £39.91. But I actually filled up 196 of those 307 kWh at SuperChargers for free. So actual total fuel cost so far is 111 kWh x 13p = £14.43.
Sure the Tesla SC free charging won’t last for ever (I only have 204 kWh left from my referral bonus). But comparing my home charging cost with the best case scenario on an ICE executive saloon - doing similar mix of local road, dual carriageway and motorway miles - I would get 400 miles max per full tank. Each tank of fuel costing say £60 @ £1.25 per litre.
So 2.5 tanks of fuel to do 1,000 miles. Total petrol cost £150 vs sub £40 for home charging. £110 saving per 1,000 miles is pretty great I think. Plus this was during the cold winter, my efficiency should improve quite a bit in the spring and summer.
Looking at the Lifetime trip computer readings, it says I’ve done an average 304 Wh/mi and consumed 307 kWh after exactly 1,010 miles.
If I did this all with home charging it would’ve cost me 13p per kWh on my electricity traffic with Bulb energy, making it a total of £39.91. But I actually filled up 196 of those 307 kWh at SuperChargers for free. So actual total fuel cost so far is 111 kWh x 13p = £14.43.
Sure the Tesla SC free charging won’t last for ever (I only have 204 kWh left from my referral bonus). But comparing my home charging cost with the best case scenario on an ICE executive saloon - doing similar mix of local road, dual carriageway and motorway miles - I would get 400 miles max per full tank. Each tank of fuel costing say £60 @ £1.25 per litre.
So 2.5 tanks of fuel to do 1,000 miles. Total petrol cost £150 vs sub £40 for home charging. £110 saving per 1,000 miles is pretty great I think. Plus this was during the cold winter, my efficiency should improve quite a bit in the spring and summer.