A novel photovoltaic system control strategies for improving hill climbing algorithm efficiencies in consideration of radian and load effect

•The proposed algorithm is still effectively in low irradiance level below 150 W/m2.•We propose a fast accurate technique in consideration of the load and radian.•A control strategy is employed to improve efficiency and reduce execution time. This study proposes a novel algorithm for maximum power point tracking (MPPT) in solar-power-generating systems, and compares it with the conventional methods of hill climbing (HC). These conventional algorithms are prone to divergence under low irradiance levels (