Electric vehicles can be charged overnight and at off-peak times, so it's reasonable to assume they use a higher-than-average share of low-carbon energy. For example, around 50% of the UK's electricity production is from low-carbon sources (renewables and nuclear). But a much higher percentage of off-peak power is low-carbon. After midnight, close to 100% of the grid is low-carbon because the gas turbines spin down w…
PGE has an EV rate plan [1] which charges a lot less during off peak (midnight to 6am) than during the day.
[1] https://www.pge.com/en_US/residential/rate-plans/rate-plan-o...