ENERGY STORAGE DEVICE, OPTICAL STORAGE SYSTEM, AND CHARGING NETWORK

This application provides an energy storage apparatus, a photovoltaic energy storage system, and a charging network. The energy storage apparatus includes a first load, a second load, a heat management assembly, a heat dissipation assembly, and a compressor. The heat management assembly includes a first heat exchanger and a valve body assembly. The first heat exchanger in the heat management assembly includes a first heat exchange channel and a second heat exchange channel. The first heat exchange channel, a first heat exchange component, and a second heat exchange component are all connected to the valve body assembly through different interfaces. A heat sink in the heat dissipation assembly is connected to the valve body assembly through a third pair of interfaces. The compressor and the second heat exchanger that are connected in series to each other are connected in series to the second heat exchange channel through a fourth pair of interfaces. The valve body assembly is provided with a plurality of valve ports that are switchable for communication, to connect or disconnect a connection passage among the first heat exchange component, the second heat exchange component, the first heat exchange channel, and the heat sink, to form a plurality of heat exchange paths. The energy storage apparatus heats or cools a battery in different heat exchange manners in different temperature environments.