In the years ahead, nano-based technology will also reduce manufacturing costs by facilitating 3D printing of solar cells, which will make decentralized production possible so photovoltaics can be created when and where they are needed. And unlike the big, clumsy, rigid panels used today, cells built with nanotech can take many convenient forms: rolls, films, coatings, and more. This will reduce installation costs and give more communities around the world access to cheap, abundant solar power.
