Daily use scenarios of energy storage power supply

Why is energy storage important?

Energy storage is an important link for the grid to efficiently accept new energy, which can significantly improve the consumption of new energy electricity such as wind and photovoltaics by the power grid, ensuring the safe and reliable operation of the grid system, but energy storage is a high-cost resource.

Why is local storage of surplus electricity a problem?

The reason is that the scheme for local storage of surplus electricity does not consider that the excess energy does not participate in the power coordination of the external grid.

How does energy storage work?

In this case, the energy storage side connects the source and load ends, which needs to fully meet the demand for output storage on the power side and provide enough electricity to the load side, so a large enough energy storage capacity configuration is a must.

What is the difference between energy storage capacity configuration and online storage?

In the three scenarios, with the distinction between the two methods of energy storage capacity configuration, it is clear that the storage capacity of the energy with the surplus power online presents far less than with surplus power offline in local equilibrium.

What are energy storage capacity configuration schemes?

According to their characteristics, two energy storage capacity configuration schemes are set up, including local storage of surplus electricity and local balance of surplus electricity for Internet access.

Should auxiliary services be opened in the electricity market?

It is suggested to open the auxiliary services in the electricity market and encourage users or third parties to invest in energy storage by improving the pricing of frequency regulation services, to improve the economy of the source-grid coordination of charge and storage.