Solar photovoltaic cell power generating capacity prediction system and method

The present invention relates to a solar photovoltaic cell power generating capacity prediction system and a method, wherein the method comprises the steps of: collecting temperature and light intensity data at a plurality of moments of a plurality of days before a day to be predicted, recording the data as a history data, calculating temperatures and light intensities at a plurality of moments of the day to be predicted according to the history data, calculating powers at a plurality of moments of the day to be predicted, and calculating a total generating capacity of the day to be predicted. The system and the method realize the prediction of the power and the total generating capacity at a plurality of moments of the day to be predicted, and enable users to schedule the working time ofelectric appliances reasonably, thereby realizing maximum utilization of the solar energy and decrease of the electricity cost.