Found it: https://www.nrel.gov/docs/fy23osti/84728.pdf https://www.nrel.gov/docs/fy23osti/84728.pdf (DOE study) https://news.ycombinator.com/item?id=39929842

Found it: https://www.nrel.gov/docs/fy23osti/84728.pdf https://www.nrel.gov/docs/fy23osti/84728.pdf (DOE study) https://news.ycombinator.com/item?id=39929842 https://news.ycombinator.com/item?id=39929842 (related HN discussion, 125 comments, 16 months ago)