I live in Washington State. Yes exceptional cost, 70% of electric power is clean energy.

One source for high use case

https://www.coltura.org/gasoline-superusers/#:~:text=The%20drivers%20in%20the%20top,bottom%2060%25%20of%20users%20combined.

Yes most high fuel use cases are rural.

Do you know how many plug in hybrid owners don’t bother to plug in? Studies suggest fuel consumption is 42 to67% higher then EPA estimates. An app to remind owners to plug in might be helpful


Good to know hybrids have a long life.

The wild card in this discussion is battery technology, especially price. My guess is the probability of 75% cost reduction within 5 years is 50%. Just a swag based on all the lab reports.