Any perovskite solar startup is interesting, but Power Roll, a north of England company which plans to get a 5 MW to 10 MW pilot line operational in the second half of this year, may have something more special yet. “We have developed a new way to make two-terminal electrical devices, with a unique architecture.” says Neil Spann, the CEO. For now, that means perovskite ink, deposited in a proprietary microgroove structure. But in the future, the company plans to use the same architecture as a basis for capacitors and potentially supercapacitors, useful in EVs, as auxiliary to battery storage in renewable power installations. Thirdly, the properties of the “microgroove architecture” will make it useful for sensors as well. A…