Guess the Monroney contest: Tesla 3 and LEAF 2 efficiency ratings

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The (Euro) WLTP range and efficiency ratings for the 2018 LEAF have been published by pushevs.com, and they may indicate better-than-expected efficiency and range for the 2018 LEAF.

Pedro, reports correctly below that the two test cycles seem to produce similar results but incorrectly states that "we know the expected combined EPA range for the 2018 Nissan Leaf is 150 miles".

So the 168 and 177 mile ranges below may indicate a significant upside surprise in the 2018 LEAF efficiency/capacity and EPA range.

2018 Nissan Leaf gets WLTP ratings

Nissan Austria just released the WLTP range and efficiency figures for the new 2018 Nissan Leaf.

...Version

Visia and Acenta (16 inch wheels)

N-Connecta and Tekna (17 inch wheels)

WLTP city range

415 km (257 miles)

389 km (242 miles)

WLTP combined range

285 km (177 miles)

270 km (168 miles)


WLTP combined efficiency

19,4 kWh/100 km

20,6 kWh/100 km

Notice that WLTP efficiency figures measure plug-to-wheels consumption, this means that the onboard charger efficiency matters. Nonetheless, as the reader Rodrigo Melo noticed, the combined efficiency and range figures don’t add up. Or the combined range figure is wrong, or it’s the efficiency. I think that the error it’s in the range… As we know the expected combined EPA range for the 2018 Nissan Leaf is 150 miles (241 km), and we’ve seen that the EPA and WLTP combined ranges on the Chevrolet Bolt EV are very similar. For this reason the combined WLTP range on the new Nissan Leaf should be around 150 miles (241 km), then the efficiency and range ratings add up...
https://pushevs.com/2018/01/11/2018-nissan-leaf-gets-wltp-ratings/
 
2018 model 3 LR now posted with higher efficiency than, same 310 mile range as, 2017...

130 MPGe
136 123
combined
city/hwy city hwy
26 kWh/100 mi
http://www.fueleconomy.gov/feg/PowerSearch.do?action=noform&path=1&year1=2017&year2=2018&vtype=Electric

http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39836&id=39769
 
disappointing...

2018 Nissan Leaf

Combined MPG:112 MPGe

City MPGe:125 Highway MPGe:100...


30 kWh/100 mi
EPA range: 151 miles
https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39860

With the lower profile, how could it not improve on the 2017 LEAF's highway efficiency?

https://www.fueleconomy.gov/feg/PowerSearch.do?action=noform&path=1&year1=2017&year2=2018&vtype=Electric&pageno=2&sortBy=Comb&tabView=0&rowLimit=10
 
Those numbers are virtually identical to the ones for the 2017 LEAF, which is 124 MPGe City and 101 MPGe Highway:

https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39860&id=38428

I wonder if the 2018 LEAF's efficiency numbers are so much worse than those for the 2018 Tesla Model 3 simply because of poor charger efficiency:

https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39860&id=39836
 
Very strange that Bolt performs about the same on the WLTP, 380 km (= ~236 miles) as the 238 miles on the EPA combined, while the LEAF performs so much worse on EPA, 151 as opposed to its WLTP 177/168 miles, as reported here:

https://pushevs.com/2018/01/11/2018-nissan-leaf-gets-wltp-ratings/

...The Ampera-e has a certified range of 320 mi (520 km) under the New European Driving Cycle (NEDC) test cycle with a full battery, and achieved a range of 240 mi (sic?) (380 km) under the more strict Worldwide harmonized Light vehicles Test Procedures (WLTP)...
https://en.wikipedia.org/wiki/Chevrolet_Bolt
 
The “second gen” Leaf is really more like Leaf 1.5. All the hard parts of the chassis and unit body are the same; it’s the ‘11-‘17 with a better battery, inverter, and a new front clip.

Given this I’m not surprised that the ‘18 MPGe ratings are so similar to the old car.
 
DaveinOlyWA said:
Testing aside, with one pedal some will do MUCH better than EPA...
Why do you think that? I get the impression that one-pedal might cause more application of the brakes than a human would if hypermiling using two pedals.
 
RegGuheert said:
DaveinOlyWA said:
Testing aside, with one pedal some will do MUCH better than EPA...
Why do you think that? I get the impression that one-pedal might cause more application of the brakes than a human would if hypermiling using two pedals.

With the exception of high SOC, deceleration is all regen so a much greater return of power over the previous method. You can go from 50 mph to a complete stop in less than half a block. It would take some time to get used to getting the right amount of deceleration but I personally don't think it will take long for the average person to get the hang of it.
 
From what I've read the above isn't quite correct. The hydraulic brakes are applied both to bring the car to a full stop and to hold it on hills. How efficient this is will depend on how aggressively it applies the friction brakes. The lack of real coasting would seem to me to be a problem, efficiency-wise.
 
LeftieBiker said:
From what I've read the above isn't quite correct. The hydraulic brakes are applied both the bring the car to a full stop and to hold it on hills. How efficient this is will depend on how aggressively it applies the friction brakes. The lack of real coasting would seem to me to be a problem, efficiency-wise.

Not what we were told. In the previous LEAF, regen cuts out at 7-8 mph and its 100% friction braking but new LEAF regen runs to zero mph. That was a surprise to me so asked a few others and they all said the same thing. Hill holding is probably friction braking but there is no creep in one pedal.

This was verified by the engineer (the ONLY one who had any technical knowledge in Vegas) so this I believe. Its funny because one review comparing LEAF, T3 and Bolt gave high marks for LEAF one pedal having the "most seamless transition and smoothest stop" of the 3... Guessing it would feel seamless if there is only one mechanism in play. :)
 
This review gave the 40-kWh MY2018 LEAF a "real-world range" of only 108 miles while giving the 41-kWh Renault Zoe a "real-world range" of 131 miles.

Of course the Zoe is smaller, but that's a big difference.

108 miles. That's not great, especially if you factor in the rapid degradation that may occur with this battery.
 
RegGuheert said:
This review gave the 40-kWh MY2018 LEAF a "real-world range" of only 108 miles while giving the 41-kWh Renault Zoe a "real-world range" of 131 miles.

Of course the Zoe is smaller, but that's a big difference.

108 miles. That's not great, especially if you factor in the rapid degradation that may occur with this battery.
Perhaps a typo since it would require about 370 Wh/mile on the road. The NEDC between the cars is quite close.

As for battery degradation .... yeah
 
It is possible that they are just hiding 10% of the battery capacity in the software. They know full well it will lose capacity fairly quickly, and by publishing and exposing 110 miles instead of 121 miles, then as the battery degrades it will continue to show 110 miles during the first 10% of the degradation.
 
RegGuheert said:
This review gave the 40-kWh MY2018 LEAF a "real-world range" of only 108 miles while giving the 41-kWh Renault Zoe a "real-world range" of 131 miles...
Insideevs has a habit of stealing and reguritating the work of other publications.

Go to the source of the (mis)quoted review, here:

...Our test route included a simulated mix of town, rural and motorway driving with the three cars in convoy, and we swapped drivers and running order after every circuit (about eight miles) to keep things as fair as possible. The temperature during the test was 3-5deg C – far from ideal for battery performance – and all three cars were tested with their headlights on, the air conditioning set to 21deg C and normal (rather than eco) driving modes selected. The fact that the e-Golf managed just 93 miles on a full charge is a bit disappointing. The Leaf gave up the ghost next after 108 miles, while the little Zoe kept whirring along for 131 miles...
LEAF rated first, overall:

Our verdict
In our group tests, there are usually clear winners and losers, but this one’s a bit different, because the best car depends entirely on your viewpoint.

The e-Golf is the best all-rounder; it’s the nicest to drive, the smartest inside and the most practical. Meanwhile, the Zoe makes the most financial sense and will get you the farthest (by far) between charges – arguably the two most important things an electric car needs to do well.

But while the e-Golf is let down by its limited range and high price, and the Zoe by its driving position, safety provisions and cramped interior, it’s actually the new Leaf that emerges from this battle with the fewest scars. Yes, it’s a pity that the steering wheel doesn’t have more adjustment and the interior isn’t plusher, but neither of these issues is a deal-breaker. And when you factor in the excellent performance, generous kit and low running costs, the Leaf actually makes the most sense to the most electric car buyers.

1st – Nissan Leaf...
https://www.whatcar.com/news/nissan-leaf-vs-renault-zoe-vs-volkswagen-e-golf/
 
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