Projections for electricity usage apparently do not include cars

Fuel Fix:

Consumers and businesses won't be using as much electricity in the next three decades as they've used in the past three decades, thanks to more energy efficient lighting, appliances and heating and cooling systems.

The Energy Department is forecasting that residential and commercial electricity consumption will grow slower than the growth of households and businesses between now and 2050 as federal energy efficiency standards introduced in the early 1990s are reducing overall energy use as consumers and business replace old appliances and water heaters and invest in more energy efficient lighting.

The Energy Department is predicting that residential electricity sales will increase 0.4 percent per year from now until 2050, less than four times what consumers used between 1990 and 2018 when electricity sales grew at an average annual rate of 1.7 percent.
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I think there is a good reason the projections do not include a growth in electric cars.  As the winter storm in the Midwest demonstrated, those cars become much less efficient and dependable in extreme cold.  They can easily lose a significant percent of their charge in the cold and even more if they run the heater.  That could result in drivers being stranded in extreme weather.