Electric cars

Stageshoot

Deleted_User wrote: »

In this heat with the air on full blast I bet the range is massively reduced?

My On board computer shows with the air on max it uses 1Kwh per hour. in winter with the heat on 22c it runs at about the same 1Kwh per hour (Heat pump system not Resisitive Heating)

So with a 41Kwh battery running at between 4 and 5 miles per Kwh I lose about 4 to 5 miles of range per hour of AC or Heat.

So to answer your Question., No it makes not much difference at all

And the bonus is you can turn it on from your phone, I was in a conference in Nottingham today with car left in Park & Ride, On tram back to car park, turned on AC when about 10mins away and got back to an Ice Cold car all ready to go, No bum burns on leather seats.

Same in Winter Turn on heating from Phone before going out, No Ice the scrape off car No Frostbite.

It is all really very civilised.

Martyn1981

Deleted_User wrote: »

In this heat with the air on full blast I bet the range is massively reduced?

I thought exactly the same, especially given that the heat pumps can be very powerful (around 1kW), then it dawned on me that that's 1kWh per hours driving, which didn't sound too bad then.

Edit - Sorry stageshoot, I should have read forward before posting.

Stageshoot

And forgot to add

That although using 1kw per hour so on a 3 hour drive about 3kw or 15 mile range. The battery is happiest when it!!!8217;s between 25-30c. So tends to be most efficient at that temp so you don!!!8217;t really notic the range loss as the car is returning its best output anyway.

The Heat Pump system is so good for AC and Heating. My old BMW i3 has a much smaller battery (19kwh usable) and used resisistive heating that averaged about 3kwh usage per hour in winter so even just driving 1 hour would be a massive hit on a small battery

So really my only advice would be if going for an EV try and get a heat pump car

almillar

In this heat with the air on full blast I bet the range is massively reduced?

Nope. The battery likes to be around 20 degrees C, so you get better range in the summer than in the winter (50% more in my experience, IN THE UK!), which more than offsets the aircon use. Remember than unlike an ICE, an electric car has to use energy to HEAT or COOL a car, since there isn't waste heat from an engine.

And when you think of the peak energy the climate control can use, that's at the start, once it gets to around the temp it needs to be, there will be far less used.

Martyn1981

List of EV's with miles/kWh:

What Are The Most Efficient Electric Cars?

Stageshoot

Martyn1981 wrote: »

List of EV's with miles/kWh:

What Are The Most Efficient Electric Cars?

The chart is ok as a guide but a lot of "Guesswork" was used when putting it together there are a few major errors in it, for some reason they have the Renault Zoe down as 37Kwh battery, when its 41Kwh (41 usable 45 total). And they seem to be putting some stuff down as fact such as range and deficiency etc, which when pushed they admit are guesstimates and estimates

NigeWick

Martyn1981 wrote: »

List of EV's with miles/kWh

I'm getting 5 miles per kWh in my 40kWh Leaf tootling around town if I don't have the aircon on. Drops to the quoted amount at 60mph with the aircon on.

AnotherJoe

Deleted_User wrote: »

In this heat with the air on full blast I bet the range is massively reduced?

You'd lose your bet unless 7 miles out of 110* is "massively reduced". What's that, 6% ?
And as said, the increased range due to high temps far more than compensates for A/C use.



(And of course, the range on a petrol car will also decrease in similar fashion, the energy to run the AC isn't provided by pixies but by the engine)


* What my car reported yesterday when I switched the A/C off to see what effect it was having.

Car_54

AnotherJoe wrote: »

(And of course, the range on a petrol car will also decrease in similar fashion, the energy to run the AC isn't provided by pixies but by the engine)

You're right. In future I shall employ a punkah-wallah instead.

gzoom

Deleted_User wrote: »

In this heat with the air on full blast I bet the range is massively reduced?

The 'pre-cooling' feature of our EV is amazing in the current hot weather. I turn the air-con on about 10 minutes before I get into the car, the difference between getting into a lovely cool car versus one at nearly 50 degrees is amazing, and all the cost of less than 1% energy use (about 2 miles of range) .