Add another 50-100 twh for electric system losses #realtimepeerreview
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Replying to @gilbeaq @JustinHGillis and
We thank the reviewer for this helpful comment. We will revise and make our assumptions explicit. We’re assuming plant to EV efficiency including T&D & charging losses and since LDV VMT is not quite 3 trillion, feel our original estimate is close. We will now add error bars.
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Replying to @CostaSamaras @gilbeaq and
The kWh/mile number for EVs might be higher in the real world because of how people drive, how many SUVs vs cars there’d be, and how high/low temperatures degrade battery performance. But I think 20-30% of current total electricity demand is a good round number range.
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Replying to @CostaSamaras @gilbeaq and
25% added load for 100% EV scenario is about right. I estimated ~1,100 TWh. If you want some more detail, I've done some approximations of load growth by county and state. See the following:https://www.forbes.com/sites/ftodddavidson/2018/11/05/electric-vehicles-are-coming-and-new-england-and-california-better-watch-out/#3b1cae042c41 …
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Replying to @FToddDavidson @CostaSamaras and
Here's an estimate of new electricity needs by county across the United States for increasing levels of EV adoption.pic.twitter.com/wX5v6Dqz9L
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Replying to @FToddDavidson @CostaSamaras and
Add here's the results for percentage increase for every state. On average it's about 30%.pic.twitter.com/FuMfXJ9Ldm
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Replying to @FToddDavidson @CostaSamaras and
Additional detail is also provided here where we consider the power demands as a function of EV charging time.https://theconversation.com/switching-to-electric-vehicles-could-save-the-us-billions-but-timing-is-everything-106227 …
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Replying to @FToddDavidson @CostaSamaras and
If we charge during off-peak hours, places like TX might need *very* little, if any, additional generation capacity.
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Replying to @FToddDavidson @CostaSamaras and
That's really important for the public to realize. The transition to EVs could be very smooth if we charge at the right times. Here's ideal charging for TX and CA, assuming a 100% EV passenger fleet and existing generation capacity. This is meant to be illustrative only.pic.twitter.com/KJN9Rw8Isx
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Often, increased electricity consumption by EVs or geothermal heat pumps produces more GHG reduction than an equivalent increase in clean power production. As grid gets cleaner, benefit of more clean generation diminishes while benefit of #BeneficialElectrification increases.
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