The company says its aim is to "revolutionise solar energy" from its North East base. : A £1m investment has been made into County Durham solar power specialist Power Roll to help it scale up and commercialise its innovative products worldwide. Power Roll has developed an ultra-thin solar film which can generate and store electricity, and which can be installed on a raft of surfaces including rooftops and sides of buildings, as well as off-grid applications to provide portable power.