forums energies: society, ecology and clean technologies

To see to get an idea in "real" condition:

https://www.automobile-propre.com/lauto ... n-norvege/

Theoretical Real Difference
Tesla Model S 610 km 469,8 km - 23%
Tesla Model X 507 km 419,6 km - 17%
Tesla Model 3 560 km 404,4 km - 28%
Hyundai Kona 449 km 404,5 km - 10%
Kia e-Niro 455 km 360,2 km - 21%
Kia e-Soul 452 km 352 km - 22%
Jaguar i-Pace 470 km 333,8 km - 29%
Mercedes EQC 417 km 307 km - 26%
Audi e-tron 415 km 341,1 km - 18%
Opel Amera 423 km 297 km - 30%
Renault ZOE ZE 50 395 km 313,8 km - 20%
Nissan Leaf 62 kWh 385 km 298,6 km - 22%
Nissan Leaf 40 kWh 270 km 208,9 km - 22%
Hyundai Ioniq 311 km 269,3 km - 13%
VW e-Golf 222 km 198 km - 11%
Volkswagen e-Up! 251 km 226 km - 10%
Seat Mii Electric 260 km 226,6 km - 13%
Skoda Citigo-e 260 km 220 km - 15%

Very interesting!

I remember that on average in very cold conditions the autonomy of an EV is reduced by +/- 20%.

Not necessarily very serious in terms of annual costs because we are not in very cold conditions all year round, at least with us, but actually annoying in terms of autonomy for some.

It is necessary to read the conditions of the tests before concluding that it is the battery or the electric traction which functions less well in winter!

Sorry but these tests are pipetted due to (I quote)

full but cold batteries after a night spent in the garage after recharging, adjustment of the passenger compartment heating to 21 ° C throughout the journey,

I am even surprised by this lack of scientific rigor and that there is no more fall in autonomy! The consumption of a VE with constant internal temperature regulation will therefore strongly depend on the outside temperature (not because of the battery but because of the internal heating) ...

The losses from a car are very high (they are not insulated because there is thermal / cold energy in abundance on thermal models and as electrics are derived from thermals *), it is easily necessary 10 kW to 15 kW (see more) to keep it at 21 ° C when it freezes due to wind chill!

In addition, the tests were done with a delta of 9 ° C ...

at a temperature of 3 ° C, with rain and sleet. And going north, the thermometer displayed -6 ° C at the lowest.

In short it is as if you compare a heating power at 3 ° C and -6 ° C ...

In my opinion, these tests therefore have very little value! Sorry!

* Tesla, of a specific electrical design, may be better insulated in terms of the bodywork, but that's it: to my knowledge, they still use simple glazing!

Christophe wrote:I am even surprised by this lack of scientific rigor and that there is no more fall in autonomy! The consumption of a VE with constant internal temperature regulation will therefore strongly depend on the outside temperature (not because of the battery but because of the internal heating) ...

I do not think this article has the slightest claim in terms of scientific rigor ..... I understand (unless it is piped?) That 20 VE made the same day the same route or at least part of that -this under conditions which are globally specified but in all cases identical, and that their autonomy has been compared to WLTP consumption.

Uh, normally EVs are equipped with a heat pump which recycles the calories from the air extracted from the passenger compartment. Not really comparable to heating a thermal vehicle. The need is the same, but the way to satisfy it is different.

I did not know that there were heat pumps for heating systematically on EVs ... Are you sure about that?

On Tesla I want to believe it ... but on a Zoé I have a lot more trouble ... After a heat pump it is just a reversible air conditioning so it is quite possible!

In any case it was not the case a few years ago!

Christophe wrote:I did not know that there were heat pumps for heating systematically on EVs ... Are you sure about that?
On Tesla I want to believe it ... but on a Zoe I have a lot more trouble.

Since its release in 2012.
https://www.cnetfrance.fr/cartech/renau ... 769452.htm

8 years. Let it pass quickly.
But the performance of the cap is not optimal

plasmanu wrote:But the performance of the cap is not optimal

113 euros per taxpayer to promote junk food, in fact, the CAP has a poor return!

PAC = heat pump (reversible = hot / cold air conditioning)
It must cost € 113 to produce

plasmanu wrote:PAC = reversible heat pump
It must cost € 113 to produce

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