In order to expand the introduction of renewable energy in the long term, its cost needs to be reduced to the level of the existing energy sources. At the same time, efforts will be made to avail locations previously unsuitable for a renewable energy site, such as: improvement in power generation efficiency and durability; making the weight lighter, and; forming it into bendable forms. In addition, technologies to contribute to significant increase in the volume of renewable energy that can be introduced at a cost equivalent to the existing energy sources will be sought. In the case of solar power, this will include technologies that allow the installation of solar panels on building walls, factory roofs, on top of water, and on vehicles and drones.