Electric cars? for Aspies, Narcissists and Power Grid people


Excellent contribution to the discussion Chronos.
I also noted the following observations

“Furthermore, EV charging involves a controllable load comparable to a washing machine or water heater. As such, EVs offer advantageous flexibility for demand response purposes, for instance, shifting charging cycles when electric demand is low. EV flexibility could be an important input for flexibility models, either at household level [12] or at the aggregated level [13]. Another promising perspective involves injecting the electricity stored in EVs’ batteries back into the grid, with so-called“vehicle-to-grid” projects [14]”

And later on when projecting the impact of a 30% take up of EV’s by 2030 in South Central Texas the report noted.

“Forecast shows that even when a high number of EVs are added to the grid by 2030, their charging only moderately impacts the shape of the load curve at the regional scale of South Central Texas. The overall load is naturally higher with the additional EVs, especially in scenario 2 with larger batteries, but the current charging habits do not cause unmanageable peaks or unstable variability for the load.

Both simulations even show that, with the additional EVs, the load curve would be smoothed out during the night, diminishing the intra-day variation. With adequate planning, there should be no major problem with such market share growth. This is in line with other studies assessing the impact of EV charging, such as Luthander ’s et al in a Swedish case [33]. However, since there could be issues at a local scale, some kind of coordination is required to smart-charge the EVs [6], for instance by optimally scheduling the charging of EV fleets [34], or through targeted price incentives [35].5. “

In fact the report has echoed just about every comment made in the Electric cars thread which point out the issue needs to be addressed but there are relatively simple straightforward solutions that would in fact improve the whole power network.



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