There are two kinds of Water storage tanks, high temperature tanks are red and low temperature tanks are blue. The water storage tanks are installed underground and do not occupy ground space.

    When the power supply network is priced in different time periods, the water in the low-temperature water storage tank can be heated under the wave valley electricity price to store the heat into the high-temperature water storage tank. Under the wave peak electricity price, the heat of the water in the high-temperature water storage tank can be released to meet the heating demand, thus reducing the operating cost.

    When the power supply network needs to be staggered, energy can be stored at the trough of power consumption, energy can be released at the peak of power consumption and power consumption at the peak of power consumption, so as to avoid increasing the load of the grid.