To some extent low efficiency can be compensated with cheapness,[1] or with the ability to be layered with cells operating with other wavelengths of light. The

To some extent low efficiency can be compensated with cheapness,[1] or with the ability to be layered with cells operating with other wavelengths of light. The article correctly mentions that service life is a key parameter but it doesn't talk about these other aspects. 1. Here's a British company that has worked out how to print perovskite cells onto plastic film (transported in roll form): https://powerroll.solar/unique-solar-film/ https://powerroll.solar/unique-solar-film/