Firstly Night Train you seem to suggest that the 'eco-friendliness' of EVs in fact lessen their appeal? Do you (or anyone else) think that the take up would be greater if they were seen as just another form of transport?
From talking with people about my project I have found that the objections to EVs are varied.
From people who have a level of environmental concern they ask questions on the electricity supply and the batteries to find out how 'eco-friendly' it really is and then debate whether the car is really better then what is already available.
From people who do not care about the environment they generally dismiss the EV as a waste of time and consider it far more polluting then a typical ICE (internal Combustion Engine) due to the mining required for the metals used in batteries and fossil fuels used to generate the electricity. Also they consider the initial cost as a major disadvantage along with the relatively poor performance and range.
I personally think that there are serious issues, that should be discussed, with both ICE and EV in terms of resource use and energy supply chains and distrubution (and the same would apply to cycles, horses, etc when used for transport). However, I do feel that EVs have a more efficient and effective future then ICE.
One thing I did work out is that over a 2000 cycle life of my proposed EV batteries with a 70 mile range they would have driven 2000x70=140,000miles.
Assuming 40x200ah cells at approximately £1/ah that gives £8,000 for the cost of the battery pack.
The pack would have 25.6kWh and at 80% DoD it would be 20.48kWh. To recharge that amount per 70 mile trip would cost 20.48x0.15=£3.07 at 15p per kWh. Over the 2000 cycles that would be £6,140.
Total cost £13,140 giving 9.4 pence per mile.
Over 140,000 miles in my diesel car at 50mpg I would use 2800 gallons of fuel. Assume £5/gallon that would be £14,000 and 10 pence per mile.
Granted that the ICE will have higher maintenance costs and that both fuel suplies will increase in cost over the 140,000 miles it can be seen that it is not always a straight forward case of a financial saving in running an EV. If the EV had a complicated maintenance shedule with repairs to controller, charger and battery management, replacement cells, etc then the maintenance saving could be even less or non existent depending on how much labour on either vehicle could be done as DIY.
At 140,000 miles the EV would be looking at a replacement battery pack. The diesel ICE car could do the same distance again, or more, on the same engine. Not a direct comparison as the EV's motor could outlast the ICE easily.
Even the environmental saving could be a poor return if the electricity came from, say, running an ICE generator off grid or only from coal fired power stations. One would need to endevour to recharge from renewable sources where possible.
Discussing the environmental aspects of EVs can become a potential minefield (especially if one gets the maths wrong