Since we can’t count on the official NEDC to give us realistic range and efficiency figures, onlineÂ range calculators are very useful, not only for electric cars, but for every kind of vehicle.

With the recent introduction of the new ZE 40 battery for the Zoe, Renault finally give us the opportunity to know in more detail what range we can expect from the best selling electric car in Europe.

The Renault Zoe range calculator is very similar to the one TeslaÂ Motors has been using for a long time, as you can see below.

In these range calculators we have someÂ variants that influence the car’s range and efficiency. Speed, temperature, AC and the wheels size.

The range calculator show us the importance of aerodynamics.

In the case of the Renault Zoe R90 with the ZE 40 battery, considering 20Âº C temperature, the expected range at 30 km/h is 355 km with the smallest wheels and 333 km with the biggest. This 22 km difference represents 6,6 % more range with the smallest wheels.Â If we set the speed atÂ 130 km/h, we get 163 km range withÂ the smallest wheels and 151Â km with the biggest.Â This 12 km difference represents 8 % more range with the smallest wheels.

Aerodynamic drag increases exponentially as theÂ speed increases and this range calculator demonstrates it clearly. Regarding efficiency, tires rolling resistance is also important,Â but reducing it substantially can be dangerous, while increasing aerodynamics doesn’t reduce our safety. This is why we should focus more in aerodynamics.

If the Zoe with smaller wheels can have a superior range, as much as 8 % more when compared to the biggest, imagine how much more range it could have a mirrorless version andÂ moon discs.

While it’s great to see electric cars getting betterÂ range with moreÂ battery capacity, we shouldn’t forget efficiency. Better efficiency canÂ not only reduce running costs but also the charging time required to travelÂ the same distance.

I think that every car, electric or not, should have an UE (Ultra Efficient) trim. This trim would be mirrorless and have moon discs. These are cheap ways to increase efficiency, but not the only ones. Lower weight should also be an option, by using aluminium for the moving parts like doors and hood orÂ slim and lightweight seats.

Renault already presentedÂ an ultra efficient plug-in concept car, the Eolab.

While Renault says the Eolab is a PHEV which weighs 955 kg and has a drag coefficient of 0,235. I think it show us what the second generation Zoe will look like.

Just imagine how cool would it be a lightweight and aerodynamic Renault Zoe with a 60 kWh battery, 22 kW internal charger and able to charge at 150 kW with CCS fast chargers. Even if it costed 10.000 â‚¬ more than a Clio it would be a success. Renault you have my permission to build it ðŸ™‚

What do you think? Do you find the range calculators useful? Should every automaker adopt them? Is efficiency important for you, or you just care about range?

More info:

https://www.renault.fr/vehicules/vehicules-electriques/zoe/autonomie.html#estimez-autonomie

The range calculators are an excellent tool…

I know the larger rims are a selling point and upgrade option for auto companies but it is almost sad that they offer them…

They should have to give different EPA estimates for the different wheel and tire sizes as I know they can make a couple of mpg difference in fuel economy…

What difference in range do moon discs make??

You can gain as much as 5 % more range/efficiency with the same tires just by using moon discs at highway speeds. Bigger wheels gain the most by using them, since the larger area generate a lot more drag and turbulence.

Did you also notice that there is just a few km difference between R90 and Q90?

So NEFZ/NEDC range does not tell you anything important when talking about real range

Yes Stefan, the Q90 setup is just the same old motor and charging system made by Continental and used in Q210.

I wouldn’t recommend it, it’s very inefficient, specially in charging.

90 % at 32 A

80 % at 16 A

70 % at 13 A

60 % at 10 A

50 % at 8 A

At 10 A its efficiency is only around 60 %. This means that you’ll need 68 kWh from the grid to charge 41 kWh…

http://renault-zoe.forumpro.fr/t1533-rendement-de-chargedecharge

This is the most important reason why Renault should discontinue the Q90 and introduce CCS fast charging.

That’s terrible efficiency indeed, would you happen to know how much better the 22 kW (R90?) version is with regards to low current efficiency?

Here you can see that the R240 takes less time to charge, even with the available battery capacity being larger (23,3 kWh instead of 22 kWh).

https://pushevs.com/2016/12/17/renault-zoe-charging-time-efficiency/

Perfect, thank you very much

But in Austria i dont have to pay blind current. And 43 kW AC charging is more important to me than only having 22 kW AC.

In germany they all want to have Q90 instead of R90 ðŸ˜‰

I already had Q210 and i would have bought BMW i3 94Ah if Q90 Zoe were not available.

To be clear on this, the Q90 has the motor and charger of the old Q210 and the R90 has the motor and charger of the R240, right?

And it’s possible to buy each of them with 22 or 41kWh batteries, correct?

Yes to both questions.

I thought they stopped selling the Q210 when R240 appeared back in 2015… Why this strategy now? Renault really has the strange ability to over-complicate things…

No Renault didnt stop in some countries like austria

We always had the possibility to buy Q210 and R240 ðŸ™‚

OK… thanks for the info. In Portugal, from my understanding, Q210 was fully replaced by R240.

Where do I find this calculator?

On your countries Renault website.

Here a link to the range calculator on the Renault Denmark website:

https://www.renault.dk/biler/personbiler/zoe/r%C3%A6kkevidde.html

Do we know if this calculator is based on average journey speed or continuous speeds? The Renault video seemed to suggest average. My journey to work is 62 miles each way and usually at an average of around 45-52mph but a large proportion is on motorways.