A solar power generation system for providing a predetermined operating power level and predetermined operating voltage level requirement is provided. The system includes at least one solar-array panel. Each of the solar-array panels includes a multiplicity of PV solar sub cells. A preconfigured number of the PV solar sub cells are electrically connected in series to form a serial-unit or each forming an individual serial unit having just one PV solar sub cell. A preconfigured number of the serial units are electrically connected in series to form a string of serial-units. The PV solar sub cells are also connected in parallel to neighboring sub cells to form a crisscross matrix array that facilitates bypassing malfunctioning serial units, thereby improving the performance of the system. A PV solar sub cell is at least 50% smaller in area than a regular PV solar cell.