Solar energy utilization system

A solar energy utilization system comprising:

• a Perovskite solar cell part that converts light energy of sunlight into electrical energy;
• a solar water heater heat-collection plate that is disposed below the Perovskite solar cell part, that collects heat obtained from the sunlight that has passed through the Perovskite solar cell part, and that is constituted from black aluminum;
• a casing for housing the Perovskite solar cell part and the solar water heater heat-collection plate;
• an air layer that is provided within the casing between a tempered glass part on which the Perovskite solar cell part is placed and the solar water heater heat-collection plate;
• and
• a flow path part that is provided in the casing in contact with the solar water heater heat-collection plate, and that allows fluid to flow to exchange heat collected by the solar water heater heat-collection plate;
• wherein
• the flow path part, being a flow path that spreads throughout an entire area of the solar water heater heat-collection plate, has a large pipe that extends to left and right in a plan view, functioning as a main pipe, medium pipes that extend vertically and horizontally, constituting a larger mesh lattice, and small pipes that extend vertically and horizontally, constituting a smaller mesh lattice, and
• fluid flowing through the large pipe, the medium pipes, and the small pipes is oil.