Tyre tax anyone?

I decided to ignore that as it varies according to battery type.:)Just did some work on new speakers for the TV so may well spot my extra zero now.,

Interesting exercise any way especially in terms of the grid man's comment. The other aspect is missing power lines. Currently being argued about - how to route them. I wonder if there is a trench digging cable laying machine about. Pylons and undersea being debated.

Edit
Hang on 3.4kwh / mile does mean 340kwh / 100miles. ;) Id didn't need a calculator for that. 50 weeks a year 5 days commute = 250 day Crap holiday job. 250x340=85,000. at 12p per kwh = £10,200 against £4800 for fuel.
It does, but the actual figure is 3.4 miles per kWh. Unless you're driving a HGV.

To sanity check your numbers, if you're right a 40kWh leaf would be able to drive something like 13 miles.
 
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LOL Correct. I edit it at some point.
It is but there is no reason they have to be like that. Some hybrids have been produced where the main aim seems to be higher acceleration rates.

This goes into power used with acceleration - bit noddy

The losses he mention include I^2R on both the battery and the motor but they don't last for long. The vehicle needs to be able to travel at max speed for significant periods of time. On that basis that power level could also be used for acceleration.

High range EV's appear to weigh more than similar IC. Use of high acceleration levels. That and weight influence tyre wear however it's powered.

Mass market EV's. Say an owner can charge at home for 12hrs using all of their mains supply every day. That's 240x80x12= ~230kw hrs. LOL I wonder if the streets will take that when all have it. A grid man on TV reckoned on that an EV was the equivalent of adding another house to the grid. This gives some typical measure kw hour figure per mile so could be compared with our electricity bills also use that to calc costs

;) I can't look at my bills. Wife looks after them and don't know where they are. I'd have to ask

There are chargers around that monitor house usage and divert some level to battery charging. Seems to be the preferred type

The price cap is £0.51 per kw hour, standing charge £0.53 per day. Average annual bill. Standing charge anyway ') untless they up it for higher rates.
Ofgem estimates the typical household in Britain uses 2,900 kWh of electricity and 12,000 kWh of gas in a year.
Our grid can cope with that.
Say 100 miles a day using the higher Tesla consumption figure 3.4miles /kwh = 29.4kwh/day. Say 50x5 days/ year = 7,353kwh per year. Cost 7,353x0.51=£3,750. Range achieved 25,000 miles. Say 35mpg - 714 gallons = 3,246L cost £4,804 at £1.48/L

The maybe 230kwh available from the house - A range of 230x3.4=`700 miles - losses. That is one of the main factors that interests me but a 13amp plug would be a different matter. I have seen work on a high efficancy portable EV changer. 13amps and a unity power factor - few plugs would take it. 700x13/80 if it did. 113miles. That was with a 200v or so battery pack.

Found some info on a Type2 EV plug that can do 3 or single phase
Technical SpecificationCharging typeMode 3, Type 2Charging power 7.4 kW on single-phaseRated current32 A/16 ARated frequency50 HzInput/output voltage230 V+-10%: L1, N, PENetwork typeTT, TNRCDIntegrated 6mA DC + 30mA AC leakage detectionProtectionOvercurrent, overvoltage, undervoltage, ground fault including DC residual current protection, integrated surge protectionPME fault detection Incorporated within the unit

This one monitors house current. 7kw or 22kw if 3 phase is available. 7kw,12h - 84kwh=285miles. Only reduced electricity rate I have noticed is for 5hrs. 7kw ~ 29amps. Ok for a 32amp plug.

;) All corrected - I think

Looks like 50miles a day is roughly = to one house.

Interesting recent comment. Currently no point in adding more wind as no cables to get it where it's needed. Arguments about pylons against under sea routes, A bit about buried cables. I wonder what a mechanical moled tunnel and liners costs
Corrected - ;) I think. The 7kw model is said to charge 3 times faster than a 3 pin plug. So 95 miles in 12hrs if some one carries one of those around.
 
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