just like water. if consumption starts to reach production then they raise
prices during peak and/or make rules to only charge during non-peak hours.
this can also be mitigated by having battery backups on houses that are charged
during off-peak hours.
From: Peri Hartman via EV <[email protected]>
To: Electric Vehicle Discussion List <[email protected]>
Cc: Peri Hartman <[email protected]>
Sent: Sunday, December 31, 2017 9:28 AM
Subject: Re: [EVDL] Good News: EVs Are Not Crashing the Grid
I think this article raises a good question, though I don't really think
it answers it. Currently, yes, the grid isn't significantly impacted.
But what about if we had 100% EVs. What about local and long haul
trucking? What about other ICE powered equipment, e.g. earth movers,
etc.? What about generation capacity as well as distribution capacity?
Personally, our EV boosted our electricity consumption by about 10%. I
don't know how that number compares in general as, even with our EV, our
electricity usage is below the national average. Even so, that's only
accounting for residential EVs. Commercial and industrial electricity
usage is much higher than residential. Is that enough to coincidentally
assume a 10% figure for non residential EV charging? If this pans out to
be reasonably true, it would seem that EVs will not, long term, cause a
significant drain on our generation capacity, if any at all (considering
time of use).
For distribution, yes, we clearly can't have everyone charging their EVs
at 5:30pm. But, as we move more and more to renewables, we'll need grid
storage anyway and, using the "10% rule", EVs won't be a significant
factor. The significant factor will be how to get Nevada solar to the
cloudy Pacific NW or to get Texas wind to sticky South Carolina. And how
to store several days worth to even out nature's effects.
Does anyone have real numbers of the effects of 100% EVs on generation
and distribution?
Peri
https://www.nrdc.org/experts/noah-garcia/good-news-evs-are-not-crashing-grid
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