General Discussion Topics, page-50584

climate-flagship-report_the-impact-of-electric-vehicles-climate-change.pdf
ICF report on EV adoption - Executive Summary

1. The U.S. is not currently on track to
achieve a net-zero transportation sector
by 2050. Existing state-level EV policies
would only lead to a 27% decline in 2050
on-road transportation GHG emissions
compared to 2020.
2. Ambitious nationwide EV adoption would
significantly reduce on-road transportation
GHG emissions, but an electric grid powered
primarily by clean energy is required to get
closer to net-zero emissions.
A national transition to 100% EV sales
could reduce GHG emissions from on-road
transportation by 67% by 2050 compared to
2020. The same level of EV adoption could
reduce emissions by up to 82% if those EVs
were charged from an electric grid powered
primarily by clean energy.
3. Rapid EV adoption could impact electric grid
reliability. EV charging needs could add 2,000
TWh to annual energy demand in 2050, a 40%
increase from Business-as-Usual projections.
Depending on when EVs charge, they could
add up to 450 GW to nationwide peak demand
by 2050. Managed charging can help mitigate
the peak impact by shifting charging to offpeak hours or aligning with periods of excess
renewable generation.
4. EV adoption is on track to progress at
different rates regionally. Only about a third
of U.S. states have aggressive EV goals but
achieving a net-zero transportation sector by
2050 will require aggressive EV adoption in
all states.

Also: In 2020, transportation accounted for 27% of total US greenhouse-gas emissions, making it the biggest single contributor, per the EPA.