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‘Long- term’ Efficiency

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#61 ·
OB1CCFC said:
I doubt many drive slowly to save money. I think there is still quite a lot of concern about range and the reliability of chargers when on a longer run. Valid or not.
On ventilation, I guess VW have done the analysis of aerodynamics vs channeled air through a grill or like vs aircon/fan use. But the cabin can feel a bit stuffy. Not sure if any other EVs are any better??
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Just played around with it. Aircon at 19 degrees added 1.1kW in stationary. Just running the fan added between 0 and 0.6kW depending on how high you set it. The range impact of running the a/c, as it is time-based, should be higher in the 77kW battery than it is in the 58kW battery. For me it was just under 40 miles, or under 10kW just now on a fully charged Tour, starting on 389 miles and going down to 350 once I turned it on.

All the best

Andreas
 
#62 · (Edited)
AndreasB said:
Just played around with it. Aircon at 19 degrees added 1.1kW in stationary. Just running the fan added between 0 and 0.6kW depending on how high you set it. The range impact of running the a/c, as it is time-based, should be higher in the 77kW battery than it is in the 58kW battery. For me it was just under 40 miles, or under 10kW just now on a fully charged Tour, starting on 389 miles and going down to 350 once I turned it on.

All the best

Andreas
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That seems quite high, but then it is based on what the GOM is telling you.

I’ve done the same 180 mile runs aircon off versus aircon on, I saw about an 8% reduction in useable range with aircon/HVAC on versus everything off.

A heat pump equipped car would likely recover some of that loss I expect, at least here in the UK. If it was very cold, I would think it would do a bit better than a standard car.
 
#63 ·
Tooks said:
That seems quite high, but then it is based on what the GOM is telling you.

I’ve done the same 180 mile runs aircon off versus aircon on, I saw about an 8% reduction in useable range with aircon/HVAC on versus everything off.

A heat pump equipped car would likely some of that loss I expect, at least here in the UK. If it was very cold, I would think it would do a bit better than a standard car.
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I think they call it "guessometer" for a reason 😃

I think however your 8% isn't a world off what I saw.

All the best

Andreas
 
#64 ·
I dad-spreadsheeted a comparison showing, at 8% impact on range, the cost per mile of running aircon is about a tenth of a penny if you're on an EV tariff at home, and about a penny if you're charging out'n'about. Assuming 4 mi per kWh.
 
Discussion starter · #65 ·
Maledetti said:
I dad-spreadsheeted a comparison showing, at 8% impact on range, the cost per mile of running aircon is about a tenth of a penny if you're on an EV tariff at home, and about a penny if you're charging out'n'about. Assuming 4 mi per kWh.
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Sure. But the issue is when people get nervous about range, lack of chargers and have to scavenge.
 
#67 ·
I have had my ID3 for one month. It is a 58 performance. Driving has been a mixture of driving in town and motorway.
I keep air-conditioning on, radio and all the modcons
I am driving aggressively as I like the power.
The only place I have changed is previously on motorways I am driving 80-90, I am now driving 65-70 as I have not been in a rush and conscious of the falloff of efficiency over 56.
My average since start is 3.7, which I consider very good. I did get 4.1 on one charge. Can't remember the type of driving

rgds
 
#68 ·
As a Leaf+ driver, apologies for trolling your thread, but I have found this interesting. In 15,000 miles I've averaged 3.6 miles/kwh, which unsurprisingly given the cars' similarities, is in line with what you folks are reporting. Most of my miles are 70 mph commute and the 'efficiency' is much better during the warmer months.

I like the Leaf very much, incidentally, and would recommend to anyone. It's good to read positive comments about the ID3 too though; plenty of room on the broom.
 
#69 ·
DuRam said:
As a Leaf+ driver, apologies for trolling your thread, but I have found this interesting. In 15,000 miles I've averaged 3.6 miles/kwh, which unsurprisingly given the cars' similarities, is in line with what you folks are reporting. Most of my miles are 70 mph commute and the 'efficiency' is much better during the warmer months.

I like the Leaf very much, incidentally, and would recommend to anyone. It's good to read positive comments about the ID3 too though; plenty of room on the broom.
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Long term feb to aug sat at 3.8.

cooler, wet and windy today and long run usually 4.2 dropped to 3.7 today.
 
#71 ·
Km 4565
7.2km/kWh efficiency.
Got the car Feb. this year.
Overall happy with the efficiency - most of the driving was at a mix of 80/60/50 km/hr speeds with an odd run at 100km/h. Did only 2 long runs so far (pandemic) with some motorway and kept speed to 105km/hr on motorway to preserve battery charge. By the by - saw latest EV Puzzle video/Mini Electric (I like Nigel as he makes some informed comments on EV.) I think on this occasion he could be suffering from confirmation bias as he tries to maintain that the Mini has a good range. It seems to me that he does this by crawling/hypermiling around Norfolk at average speeds of 40mph or less. Fine if all you're doing is local mileage but if you intend to do longer trips then questionable unless you have a lot of time on your hands - I think he may be missing the Kona (which he prior owned) on occasion.
 
#72 ·
Just reviving this thread to ask about range and efficiency in the 77kwh model, now that people have had them for a couple of years. What are folks getting as their long term efficiency? Also what range are people getting on the motorway at 70 in winter and summer please?

I’m still very happy with my Leaf e+, but it turns three in June and in the future I might prefer something with a bigger battery. Appreciative in advance.
 
#73 ·
I have a regular 220 mile round trip commute. 77kwh pro S

I do 65 generally on the motorways - but in winter I’ll get 220 miles out of 90% (100-10% run) fairly consistently. Less if there is a bad headwind or car is fully laden etc.

In summer the same journey would use 75%.. so 260+ mile range on the 100-10%.
 
#74 ·
Not a 77kWh, but you can extrapolate the extra capacity and assume minimal efficiency penalty for carrying that extra 20% battery weight.

My regular 240 mile each way commute, driving 70-72mph on the motorway:-

0C ambient temp, cabin heating to 16C, and efficiency is 2.8 miles per kWh.

At 10C ambient and no cabin heating, it's more like 3.5 miles per kWh.

At 15C ambient and no cabin heating, it's around 3.8 miles per kWh.

At 25C ambient and aircon at 18C it's 4.0 miles per kWh.

Let's assume on a long journey you'll charge to 100% and take it down to 9% - 70kWh used x all those figures above.

Worst case is 196 miles, best case 280 miles before you need to charge.
 
#75 · (Edited)
Monkeyhanger said:
Not a 77kWh, but you can extrapolate the extra capacity and assume minimal efficiency penalty for carrying that extra 20% battery weight.

My regular 240 mile each way commute, driving 70-72mph on the motorway:-

0C ambient temp, cabin heating to 16C, and efficiency is 2.8 miles per kWh.

At 10C ambient and no cabin heating, it's more like 3.5 miles per kWh.

At 15C ambient and no cabin heating, it's around 3.8 miles per kWh.

At 25C ambient and aircon at 18C it's 4.0 miles per kWh.

Let's assume on a long journey you'll charge to 100% and take it down to 9% - 70kWh used x all those figures above.

Worst case is 196 miles, best case 280 miles before you need to charge.
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I would say I do slightly better than that in the 58kwh car if it's a long run, at least since our car was updated to 3.0.
0C ambient and cabin heating set to 18C I would expect 3.0mi/kWh unless it was also raining or windy, then it can drop further. Obviously it will start off lower as everything heats up so something like a 50 mile run in those conditions would return under 3.
At 10C and no cabin heating I'd expect a bit more than 3.5, I tend to get 3.3-3.4 with heating on 19C if it's a long enough run. We did a couple of long runs this winter in the 5-10C range and light rain with the whole family in the car and got 3.3mi/kWh, I was impressed. Not sure of average speed but I always set ACC at 70.
I don't see why you would turn off heating/AC at 15C+, the impact it has on a long run at those temps is pretty minimal. But I agree with your estimated consumption at those temps.
Having said all of the above I'd have thought there would be some impact of the 77kwh car's extra weight.
 
#76 ·
sidehaas said:
I would say I do slightly better than that in the 58kwh car if it's a long run, at least since our car was updated to 3.0.
0C ambient and cabin heating set to 18C I would expect 3.0mi/kWh unless it was also raining or windy, then it can drop further. Obviously it will start off lower as everything heats up so something like a 50 mile run in those conditions would return under 3.
At 10C and no cabin heating I'd expect a bit more than 3.5, I tend to get 3.3-3.4 with heating on 19C if it's a long enough run. We did a couple of long runs this winter in the 5-10C range and light rain with the whole family in the car and got 3.3mi/kWh, I was impressed. Not sure of average speed but I always set ACC at 70.
I don't see why you would turn off heating/AC at 15C+, the impact it has on a long run at those temps is pretty minimal. But I agree with your estimated consumption at those temps.
Having said all of the above I'd have thought there would be some impact of the 77kwh car's extra weight.
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Those are all motorway miles, I do better than that around the doors when there's no battery heating going on. I actually set the ACC to 72/73mph to just about get past those who set to 70.

I generally like a cool (not a cold) car, and 15C is fine for me - if the sun's shining, you get the greenhouse effect warming up the cabin anyway.

I generally encounter very little congestion, so unless I'm in a 40/50mph average speed camera zone, I'm doing that 72mph for the vast majority of my 480 mile round trip.
 
#79 ·
58 kWh stats, mostly motorway commute (150 miles/day). Comfort mode, AC on 22 deg.
Long term: 3.5 miles/kWh
Winter: 3 miles/kWh or less (if it’s raining and cold, I arrive with less than 10% usually (from 100)

Range prediction usually gets accurate after 30-40 mins of driving in my experience. It will usually be too optimistic at start.
 
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