2022 Volume 57 Issue 3 Pages 941-948
In this study, we examined the power generation potential, electricity demand in the surrounding area, and feasibility of solar power generation by using roadside station parking lots in Tokyo and six prefectures. The analysis revealed that 1) 76 million kWh of electricity is generated annually, 2) the potential for electricity generation is very large, roughly equivalent to the electricity consumption of 10,000 to 20,000 households, taking into account monthly fluctuations in electricity consumption per household, 3) the estimated costs and revenues indicate that, although costs could have been recovered at past feed-in tariffs, it has become difficult to recover the cost of developing solar power facilities through the sale of electricity to power companies as feed-in tariffs have fallen, and 4) the balance between costs and sales can be improved if electricity generators and households directly trade electricity and the unit price of the trade can be increased.
