Forum Discussion
3_tons
Nov 02, 2017Explorer III
time2roll wrote:
I have had that dream...
“A world mostly full of EVs because the low cost to operate and so fun to drive”
Sorry, neither are rational reasons to formulate serious public policy - ‘fun to drive’ is purely subjective, low cost (as with healthcare) is merely a forward looking claim, a meritless slogan lacking any actual empirical evidence...
“I imagined a world powered by solar with an abundance of low cost power during the day and mostly battery powered or nuclear overnight even if a bit more expensive.”
This added mentioned expense negates the purported ‘low cost’ statement from above - however, this also assumes that historically fuzzy public policy makers would even consent to increased nuclear power, even though its the most rational choice...Realistically (except for off-grid) the possibility of storing sufficient harvested daytime solar via residential battery banks is at present not cost effective or even practical in wholesale quanities with present battery technology - though a technology breakthru might ultimately be possible and change this...
“Imagine the vehicles will charge during peak solar hours at home or work. 40 amps max required for daily top-off.”
Where do the ‘at work’ employers obtain their power from??...Fact is no matter how you shuffle it, the common weakness remains with the incapable grid distribution and power generation system which was never designed for such a tasking.... 40 amp max would be strictly under the most ideal of scenarios (and without contingencies), as was ‘if you like your health care plan, you can keep it’....Planners would be held malfeasant to rely on any such low ball numbers...
“Imagine most homes also have some solar and battery storage. This reduces the grid connection needed to only 50 to 80 amps instead of 100 to 200 amps.”
Yet to be realised in sny significant or sufficient quantities, most all of on grid homes lack these expensive battery banks, thus highly subject to inclement weather...
“Imagine this starts to allow higher living density on the existing grid. Also increasing grid reliability and some independence during an emergency.
Imagine during inclement weather when the lines are down most neighborhoods would disconnect from the main grid and for a few days automatically have their own local grid prioritized for those with medical or other special needs.
And the dream is not yet complete. There will be more advantages and improvements not even contemplated yet.”
In my view (though not saying its impossible), with the existing design embedded troubled grid systems, low solar efficiencies, variable weather, present battery bank economics, and a unlikely potential shift towards nuclear power, I think though worthy, it is appropriate at this time to designate this as a dream ...
Yet after all this, if reducing emissions is still the primary goal, we’ve not been provided any empirical evidence that EV’s actually reduce ‘net’ emissions except for NIMBY (the ‘not in my back yard’ syndrome)...This in and of itself seems an obvious massive breach in rational policy making...
3 tons
Time2Roll
My comments were added to the above
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