Sorry but I am not clear on this. Did you put privacy film on some panels and have some of the film left over or is this an panel with film on it or what? What dimensions are these?
Solar panels for making electricity?
What size are they? Where were they being used previously?
Thin film solar panels are designed to make electricity. I can't imagine any other use. If you meant something else, please let us know. This article explains about thin film solar panels. Wishing you the best.