AF62 wrote:jackdaww wrote:but i wonder how much the national electricity grid has to be upgraded to handle all the oil based power that is currently used on the roads .
is it double ? triple ? DAK ?
In relation to EV car users you have to consider when most people will be charging their car, and how frequently.
Already most charging happens overnight because that is when the cheap electricity is, and it is cheap because there is a surplus as others don’t want it (offices, shops, most homes, etc.) -
The big overnight electricity users used to be 24hr manufacturing plants, streetlights, and offices/shops (as for some reason they leave their lights on). With the witch to LED, and mant streetlights being off from 00:30 - 05:30, overnight demand is even lower, so spare capacity for charging vehicles is there but ONLY if we use wind or nuclear (or gas/coal, which we should be moving away from). Oddly it is less windy on average at night (someone could explain why, but farmers are usig GPS to giuder machines and shifting towards night spraying as it reduces 'drift' issues due to lower winds) but even so the surplus is there.
so does this mean that all our road oil based traffic power is just 10% of the power used for homes , factories , business's etc ??
that surprises me .
It used to be that transport was about 5% of either emissions or energy use (I can't remember), but yes, a surprisingly small amount.
The most concentrated users were heavy industry, steelworks etc, of which there are now very few.
The issue is still distribution, with domestic supplies capped or bundled into groups of homes with (say) a 150A supply as it is assumed that everybody doesn't draw their 60-100A all at once. Modern homes tend to have a higher rated supply, especially new builds where the underground infrastructure is newer, but some old rural places on overheads might still only have 30-45A supplies per property.