Power generation system

A power generation system comprising:

• a power generation device that includes a solar panel and a power conversion device that supplies power of the solar panel to an electrical load;
• and
• a control device that controls the power generation device, wherein the control device executes:
• a process of starting power supply of the power conversion device when power generated by the solar panel exceeds a start threshold;
• a process of ending the power supply when the generated power falls below an end threshold that is a threshold smaller than the start threshold;
• and
• at least one of a first process and a second process, the first process being a process of increasing the start threshold based on a fact that an index value that increases in conjunction with an amount of power generated since a start until an end of the power supply is equal to or less than a determination threshold, and the second process being a process of decreasing the end threshold based on the fact.