The mpKWh challenge...

[The Rotrex Kid]

Just thought I would share this on here. A colleague of mine is going off on a little challenge tomorrow to travel 237 miles in a ZOE that’s quoted for 245 miles.... so it’s going to be interesting to see how he does.

I had to drop the car to Lands End and thought I would set myself a little challenge to see how high I could get the average mpKWh and how little range I could use. Results below. I think I did quite well.

Started with 205 mile range, total miles 1310, trip reset...


Drove the 29 miles there, peak time, peak August cornwall traffic....

Used 3 miles of range and averaged 6 mpKWh.


I think I did quite well!

[SWoll]

What was your average speed? EV's far more efficient at low speeds.

[The Rotrex Kid]

Tbh I didn’t look, but yes I kept to the minimum I could. Large part of the journey is dual carriageway and then twisty A roads so took a lot of concentration.

[dapprman]

I did Watford to Southport a few weekends back then returned in my Zoe 50 (135 GT line). Doing much of the time 50-60 mph depending on roadworks and generally 65 on open motorway (I tried to keep below 70) the car showed me 4.8 miles/KWh on the way up and 5.1 on the way back, however based on 52 KW usable battery power, with the amount of electricity I refilled, err charged, with I would have had ~250 miles range on the way up, but about 240 on the way back (just going to show you can't really trust the average Miles/KWh reading that much).

[anonymous-user]

Turn off all hotel loads, and drive slowly and EVs use very little energy! On my commute, 18 miles of B road (which is often nose to tail at 30 mph behind some muppet who couldn't drive a greasy stick up a pigs a**e and therefore trundling is the only option), on a nice day it will fairly easily get between 6 and 8 miles / kWH. Alternatively, if i drive the wheels off it, i can get the consumption up to something like 2.8 to 3 kWH/mile, but that takes some doing......

[FeelingLucky]

I found that on a journey starting on higher ground than the destination, I could achieve astonishingly low consumption, conversely, going home again, the consumption would be high.

So a more "real world" test would be, hyper-mile from A to B, then back to A again.
Note down the A-B consumption, the B-A consumption and the overall consumption.

Max_Torque, you are of course correct, apologies and corrected.

Edited by FeelingLucky on Saturday 15th August 23:12

[anonymous-user]

FeelingLucky said:

I found that on a journey starting on higher ground than the destination, I could achieve astonishing efficiency, conversely, going home again, the efficiency would be poor.

So a more "real world" test would be, hyper-mile from A to B, then back to A again.
Note down the A-B efficiency, the B-A efficiency and the overall efficiency.

Can we please not confuse "efficiency" and "consumption" They are not the same thing!

[Witchfinder]

Me and my E-Tron will be over in the corner if anyone needs us.

[lost in espace]

Witchfinder said:

Me and my E-Tron will be over in the corner if anyone needs us.

I need to join you in the corner I suspect.

My Leaf with 4 people, roof box and luggage for a week will join it. At an indicated 70 (more like 65) it was achieving 2 miles for every one of its kwh. I decided against 2 bikes on the rear rack.

[The Rotrex Kid]

Well my colleague managed to travel 229.1 miles today in a ZOE and still have an indicated range of 33 miles which is pretty decent!!

[Witchfinder]

My E-Tron 50 Technik typically manages 2.6-2.8 miles per kWh. I've seen as high as 3.1 on a motorway run. If I hypermiled at 50 I reckon I could do 200 miles on a full charge, but I wouldn't bet getting stranded on it.