The purpose of this research was to obtain knowledge for applying botanical light technology to urban greening plants as urban green infrastructure, with a view to social implementation. The results of this study showed that voltage values were higher in areas with plants than in control areas (soil only), and that voltage values differed depending on the type of urban greening plants (tall trees, shrubs, ground cover, deciduous and evergreen) depending on the season throughout the year. It was revealed that evergreen plants such as tall trees, shrubs, and ground cover generate a lot of electricity, and that the amount of voltage generated by Ophiopogon japonicus Ker. f. nanus fort. is particularly high. In addition, it has become clear that the power generation produced by botanical lights is affected by soil temperature and soil moisture content. We found that plants make power generation more sustainable, confirming the usefulness of plants. In the future, we hope that the results of this research will help in the practical application of botanical lights and the creation of value in urban greening, such as a power source during disasters in parks and green spaces, and as green displays for indoor greening.
