抄録
With the advancement of both vehicle and PV technologies, it will be possible that 70 % of the cars will run by the solar energy, 8 % of the Greenhouse gas emission will be cut, and 50 GW/year of the new PV market will be created. The R&D of the car-roof PV impacts to entire PV technologies. The progress of R&D of the car-roof PV impacts to various aspects of PV technologies including 3-D nowcasting leading to the establishment of the real-time market and smoothing PV output to the grid.