PROBLEM TO BE SOLVED: To provide a technology for increasing a yield of a crop while increasing the amount of power generation, even when the amount of solar radiation is large.SOLUTION: A controller is provided to control the inclination of a photovoltaic power generation panel on the basis of the amount of solar radiation and a calculating table between a crop and a photic saturation point. The controller inclines the photovoltaic power generation panel so that the amount of solar radiation to a crop is maximized, when the amount of solar radiation to the crop does not exceed a photic saturation point of the crop； and inclines the photovoltaic power generation panel so that the amount of solar radiation to the photovoltaic power generation panel is maximized, when the amount of solar radiation to the crop exceeds the photic saturation point of the crop.SELECTED DRAWING: Figure 5【課題】日射量が多い場合でも、発電量の向上とともに農作物の収穫量を向上する技術を提供することを目的とする。【解決手段】農作物と当該農作物の光飽和点の対照表と日射量を元に太陽光発電パネルの傾きを制御する制御装置を設け、農作物への日射量が当該農作物の光飽和点を超えていない場合、農作物への日射量が最大となるように太陽光発電パネルを傾け、農作物への日射量が当該農作物の光飽和点を超えた場合、太陽光発電パネルへの日射量が最大となるように太陽光発電パネルを傾ける。【選択図】図５
