Power Roll, Filia to Develop Solar PV-enabled Window Blackout Blinds Updated On Wed, Sep 22nd, 2021 by Saurenergy Power Roll and Filia Solar have signed an Application Development Partner Agreement to explore the use of Power Roll’s solar film for solar PV-enabled window blackout blinds. Power Roll claims to have developed a unique, flexible, lightweight solar film capable of producing ultra-low-cost green electricity that is up to 10 times cheaper to make than […] Read more