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[countrywoman]

Even on IC cars folks that drive gentle have problem with rear brakes rusting up and auto cars that never use parking brake, yes rusted discs was one thing I noticed on electric cars while doing MOTs.

[Viral_Jim]

The above figures are using diesel from Asda at 134.7p, most fuel stations are more expensive than that.
Plus....I'm sure you could find cheaper electrickery than that.

We have ours with Octopus. its 7.5p for the car using their dynamic charging and 27.85p for everything else (per kwh obviously). Its a bit faffy and if I were to change providers, or did fewer miles I would probably look to get on an economy 7 type tariff.

The iX is getting a lifetime average of 2.8miles/kwh so our 25,000 miles per year is costing at most £55.80p per month not counting any free electrons from my work. Doing the same in a 45mpg diesel (which you wouldn't get from a similar sized car) would cost around £285pcm.

[Field Marshal Dr. Opti]

The above figures are using diesel from Asda at 134.7p, most fuel stations are more expensive than that.
Plus....I'm sure you could find cheaper electrickery than that.

We have ours with Octopus. its 7.5p for the car using their dynamic charging and 27.85p for everything else (per kwh obviously). Its a bit faffy and if I were to change providers, or did fewer miles I would probably look to get on an economy 7 type tariff.

The iX is getting a lifetime average of 2.8miles/kwh so our 25,000 miles per year is costing at most £55.80p per month not counting any free electrons from my work. Doing the same in a 45mpg diesel (which you wouldn't get from a similar sized car) would cost around £285pcm.

Dynamic charging.....I think that means only charging when there is spare 'leccy available'. If you could charge for 7.5p at any time it would be better. But just being able to charge for a couple of hours here and there in the dead of night doesn't really make much of a dent.

Then there is the higher than usual charge for all other electricity.  

[Sir Tigger KC]

How long does it take to charge up the battery if it's almost flat? 

[Field Marshal Dr. Opti]

How long does it take to charge up the battery if it's almost flat? 

About 12 hours from 0-100% using a home 7KW charger but that scenario rarely happens.

More commonly 20-80% as the last 20% takes longer and charging losses are higher, I think.

[Marks DTM Calib]

At 7kW the charge rate is the same from 0 to 100%, the losses are pretty constant across the full range.

Its when you hit it with 100kW that the charge rate drops off as it approach's the higher percent rates

[Field Marshal Dr. Opti]

At 7kW the charge rate is the same from 0 to 100%, the losses are pretty constant across the full range.

Its when you hit it with 100kW that the charge rate drops off as it approach's the higher percent rates

Yep.....I know some modern EV are able to charge at about 300KW (Lotus are saying 400KW) in the early stages, but as you rightly say this drops once past around 60-70%

[Viral_Jim]

]

Dynamic charging.....I think that means only charging when there is spare 'leccy available'. If you could charge for 7.5p at any time it would be better. But just being able to charge for a couple of hours here and there in the dead of night doesn't really make much of a dent.

Then there is the higher than usual charge for all other electricity.

Sort of, octopus guarantee you at least 6hrs.of 7.5p every night between 9pm and 6am, but you don't get to choose exactly when. I always set it so that it takes the max it can every night and never seen less than about 7.5hrs available. Our charger kicked in and out through the night and it's always given us at least what's contractually promised.

It's quite telling that in 25,000 miles I've rapid charged the car twice (and the first time was only to check that it could). And swmbo has only charged a hand full of times at work - a 185mile round trip.

The technology works well, if you can trust it 

That said, if your mileage is less, then the. 7.5p does less to offset the extra 5p/kWh the rest of the time.

[Field Marshal Dr. Opti]

]

Dynamic charging.....I think that means only charging when there is spare 'leccy available'. If you could charge for 7.5p at any time it would be better. But just being able to charge for a couple of hours here and there in the dead of night doesn't really make much of a dent.

Then there is the higher than usual charge for all other electricity.

Sort of, octopus guarantee you at least 6hrs.of 7.5p every night between 9pm and 6am, but you don't get to choose exactly when. I always set it so that it takes the max it can every night and never seen less than about 7.5hrs available. Our charger kicked in and out through the night and it's always given us at least what's contractually promised.

It's quite telling that in 25,000 miles I've rapid charged the car twice (and the first time was only to check that it could). And swmbo has only charged a hand full of times at work - a 185mile round trip.

The technology works well, if you can trust it 

That said, if your mileage is less, then the. 7.5p does less to offset the extra 5p/kWh the rest of the time.

I doubt she'll cover more than 5000 miles in a year, and I may add another 500 or 1000. So about 6000 miles tops.

However, I can see the maths would work better when 25000 miles are covered.

[Marks DTM Calib]

At 7kW the charge rate is the same from 0 to 100%, the losses are pretty constant across the full range.

Its when you hit it with 100kW that the charge rate drops off as it approach's the higher percent rates

Yep.....I know some modern EV are able to charge at about 300KW (Lotus are saying 400KW) in the early stages, but as you rightly say this drops once past around 60-70%

They are usually an 800V architecture (effectively two 400V packs in series), when charging they configure the pack to 400V with both packs in parallel, this then allows you to double the charge current. If you are then clever with the cooling and comfortable with lowering pack life, then you can get an even greater charge rate.