CliveS:
Agreed Andy,
The problem can be solved if we encourage hybrid electric cars which have a small battery just sufficient to travel 30 kilometre inside city centres thus eliminating pollution of our air.
On the motorways use the diesel/petrol engine to drive and charge up the batteries. The CO2 will be immediately absorbed by the trees and green vegetation in nearby fields, so not polluting the air we breath.
The smaller the car the better of course; ideal is 30 kW brushless permanent magnet motor with small 15kWh Li ion battery.
This will save the national grid from the problem of having to rebuild and reinforce both transmission lines and new power stations which if oil/gas is running out will probably have to be nuclear or coal fired with carbon capture re-cycling. CliveS
That doesn't work for the people who live in the city. After a few shopping trips, and taking the kids to school, the battery will be flat and the car will be forced back to running on petrol or diesel.
That's why plug-in hybrids were invented. It doesn't take long to re-charge a modest size battery from the mains. That way short city trips can be entirely on electric, and the engine only has to start up on long journeys.
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