https://en.wikipedia.org/wiki/Solar-cell_efficiency#/media/F...
(ignore the purple line which isn't cells)
But maybe cost reduction is a more important record even if it stalled at 20-25%
https://en.wikipedia.org/wiki/Solar-cell_efficiency#/media/F...
(ignore the purple line which isn't cells)
But maybe cost reduction is a more important record even if it stalled at 20-25%