Agrivoltaic Potential of Abandoned Farmlands in the National Capital Region of Japan

抄録

This study is undertaken to analyze the photovoltaic generation potential of agricultural areas in the National Capital Region of Japan. This work demonstrates a method for assessing the photovoltaic generation potential of abandoned farmland using grid square statistics on higher-resolution. The technique enables researchers to incorporate topographic conditions. This paper comprises three simulation cases: Case 1 (abundance), Case 2 (introduction potential), and Case 3 (possible introduction). It investigated the use of overlay analysis to find south-facing slopes with a maximum inclination angle of less than 20 degrees. The photovoltaic generation potential amount was estimated by exclusion of natural park areas and natural conservation areas. Furthermore, grid square statistics were extracted using sensitivity analysis of the distances from transmission lines to the abandoned farmlands. The author presented estimates with three simulations annual yielding production potential of 39,234 GWh, 14,676 GWh, and 5,679 GWh, respectively. The annual possible introduction was found to be equivalent to 1.9% of the electric power consumption in these areas in the fiscal year 2015. The possible introduction surpassed the annual electric power consumption of the agriculture sector by a factor of 10.2.