Use of solar power will increase in the future. In particular, solar power generation is expected that use at many homes is increasing. In this study, we developed the system which visualizes the amount of power generation by solar power. This visualization system used the LED Cube in order for everyone to confirm the amount of electric power generation by solar power. The LED Cube assembled several LEDs into a pin grid array format. The amount of electric power generation is indicated by a lighting pattern of LEDs.