Power generation facility

A power generation facility comprising:

• a boiler that generates steam;
• a first steam turbine into which the steam generated in the boiler is introduced;
• a second steam turbine provided downstream of the first steam turbine in a flow direction of steam flow;
• a condenser that condenses steam discharged from the second steam turbine;
• a feed pipe that leads condensed water condensed in the condenser to the boiler as feedwater;
• a heat storage and steam generation device having a heat storage function that uses surplus energy to store heat, and a steam generation function that has part of the feedwater led by the feed pipe introduced thereinto and turns the feedwater into a second steam by the stored heat;
• and
• a first steam supply pipe that supplies the second steam generated in the heat storage and steam generation device to a component included in the power generation facility,
• wherein the surplus energy is surplus electric power, and the heat storage and steam generation device includes a thermoelectric converter that generates the heat by the surplus electric power, and the heat storage and steam generation device uses the surplus electric power to store the heat generated by the thermoelectric converter, and
• wherein the heat storage and steam generation device includes:
• a container filled with a chemical heat storage material;
• a heat exchange pipe arranged between the chemical heat storage materials inside the container;
• the thermoelectric converter that is arranged between the chemical heat storage material inside the container and uses the surplus electric power, which is the surplus energy, to generate the heat;
• a water supply pipe that supplies water or water vapor to the chemical heat storage material;
• and
• a drain pipe that discharges water or water vapor generated by the chemical heat storage material,
• when the heat is stored in the heat storage and steam generation device,
• the surplus electric power is supplied to the thermoelectric converter, and
• the water or water vapor generated by the chemical heat storage material is discharged through the drain pipe, and
• when the second steam is generated in the heat storage and steam generation device,
• the water or water vapor is supplied from the water supply pipe to the chemical heat storage material,
• the feedwater is supplied from the feed pipe to the heat exchange pipe, and
• steam generated in the heat exchange pipe is supplied to the first steam supply pipe.