How much is the appropriate degree of outdoor energy storage power supply

Why do energy storage systems need to be rated?

In order to obtain greater economic benefits, energy storage can have more frequent charging and discharging operations during daily operation, which may affect the operating life of the battery and even shorten the service life. The working conditions of the energy storage system are complex and often cannot work under rated conditions.

Why is energy storage important?

In this case, the value of energy storage can be fully reflected. It can not only stabilize power generation fluctuation, improve power quality, cut peak and fill valley, but also solve the problem of absorption and reduce the rate of light abandonment. It can also improve the flexibility of power grid dispatching , , , .

What is the energy storage capacity of a photovoltaic system?

The photovoltaic installed capacity set in the figure is 2395kW. When the energy storage capacity is 1174kW h, the user’s annual expenditure is the smallest and the economic benefit is the best. Fig. 4. The impact of energy storage capacity on annual expenditures.

Does energy storage capacity affect annual comprehensive cost?

The annual comprehensive cost is positively related to energy storage capacity when adopting pricing scheme 1, namely when the peak-to-valley price difference shrinks to a certain extent, consumers cannot obtain economic benefits by configuring energy storage.

What is the optimal energy storage configuration capacity when adopting pricing scheme 2?

The optimal energy storage configuration capacity when adopting pricing scheme 2 is larger than that of pricing scheme 0. By the way, pricing scheme 0 in Fig. 5 (b) is the electricity price in Table 2.

Why do energy storage equipment store electricity?

It can be seen from Fig. 3 that when the electricity price is low, energy storage equipment store electricity in order to improve economic efficiency.