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Discussion Starter · #1 · (Edited)
All the information refers to a 2019 SR+ Model 3.

On the first of May last year I decided to see what the warmer weather would do to my overall consumption/efficiency.
So I set a trip starting May 1st-the end of September.
I didn't drive any differently other than the fact that I did a little less driving than normal as the vast majority of the miles were just from commuting rather than for many day trips and pleasure as this was throughout the pandemic.

I did 5,060 miles at 254 Wh/mi. (3.9 miles per kWh)

To compare I recorded the winter period from the 1st October to 30th April

I did 6,462 miles at 294 Wh/mi (3.4 miles per kWh)

Roughly around 25 miles of range less in the winter compared to the summer.

Both of these were without the aero wheel covers on, just the standard 18-inch wheels.

Like I say as we've been in lockdown for most of the last 12 months the vast majority of the driving has been commuting which is 30 miles each way on the A1 and A1(M) with very cold starts in the winter 4-5am well before the sun comes up, so pre-heating the cabin. So even in the summer months I'm starting at the coldest part of the day and the average driving speed is probably a little higher than most as the vast majority of the driving was done on 70mph speed limit roads.

My total for the car is 22,381 miles at 275 Wh/mi
(August 2019-April 30th 2021)

That's up from last October with one less winter when it was
15,953 miles at 268 Wh/mi (August 2019 - October 2020)


My next trip will be the same 5 summer months as last year (1st May - end of Sept) but this time with the Aero wheel covers on to see if that will make a difference and hopefully bring the efficiency over those months to less than the 254 Wh/mi from last year.
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I'll update this thread with the Aeros for comparison in October.
 

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Useful real world data!

I think we can infer that the later heat-pump equipped cars would probably go to about 270-275Wh/mi in winter for the same usage.
 

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Discussion Starter · #4 ·
Useful real world data!

I think we can infer that the later heat-pump equipped cars would probably go to about 270-275Wh/mi in winter for the same usage.
Would be great for someone to do a similar experiment who has one of the new cars. Very easy to do, just set a new trip and leave it for several months.
 
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