RE: Mileage range - how far in a Fluence?
So, I did my regular commute with the heating on this morning.
So I usually use 2/8ths of the SOC meter each way, typically a little less if I stick to below 55. Very nice, and at 3p/mile equivalent, that's the cost-equivalent of some 200 mpg.
Today I was heading to 60~65mph so I'd expect 2 sectors used up for each of the 22.5 mile one-way journeys. ~11kWh total (4 sectors).
So I happily dosed the battery up last night to half way between 5th and 6th sectors, this being plenty on a normal day.
Well, it was hardly freezing today! 10 C outside and 21 C set inside. I arrived having used 3 sectors up, and facing a return trip with only 2.5 sectors remaining!! Suffice to say, I did not use the heating on the return leg! Fortunately, it was warm enough without.
But that was a surprise. OK, I know it can use as much as 6 kW into the heater, but it was in ECO and was not using that much. All the same, after ~40 mins drive it had used up an additional ~2.5kWh of juice, so presumably the heating had averaged a little over 3 kW heating.
Well, that was barely what I would call 'cold' outside!
I was thinking that if it were much colder and the heater were to hit the 6 kW for most of my 2 x 40 min drives then that would be an additional 8 kW for the heating. Now, I'll not really mind too much paying for the comfort of warmth when the car is already effectively doing the equivalent of 200 mpg in fuel costs. But I have to worry a little about the range - if I am using 11kW there and back, and cold weather reduces that by 15% further or so, then I am now looking at 21 kW for the round trip of 45 miles! If Renault only guarantee the battery to 75% of its 22kWh rated capacity - 16.5kWh - then I will only be able to cover 35 miles with the heating on full at the 75% level of battery health!!!