NREL has great data on the US: https://www.nrel.gov/docs/fy22osti/80694.pdf https://www.nrel.gov/docs/fy22osti/80694.pdf See page 19 for all varieties of “abo

NREL has great data on the US: https://www.nrel.gov/docs/fy22osti/80694.pdf https://www.nrel.gov/docs/fy22osti/80694.pdf See page 19 for all varieties of “about a third”