How can new energy suppliers use energy storage facilities?

New energy suppliers can use energy storage facilities by installing, renting or purchasing external services, so as to control the power output within the allowable fluctuation range.

What is the purpose of energy storage configuration?

From the time dimension, when the short-term (minute-level) output volatility of new energy needs to be suppressed, the main purpose of energy storage configuration is to offset the penalties of output deviations.

Why is energy storage important in a power system?

Energy storage of appropriate capacity in the power system can realize peak cutting and valley filling , reduce the pressure caused by the anti-peak regulation of new energy units, and smooth the fluctuation of new energy output .

What is the optimal strategy for new energy suppliers?

Therefore, the optimal strategy of new energy suppliers should first be to improve the prediction accuracy of bidding output, and to control fluctuations as small as possible. On this basis, through reasonable allocation of energy storage, the risk of over-limit output is further reduced.

What are the different types of energy storage?

From the principle of energy storage, the most common and economically feasible options are usually pumped storage and electrochemical energy storage. Electrochemical energy storage has a fast response speed of milliseconds, which is mainly used for frequency modulation and short-term fluctuation suppression.

What is electrochemical energy storage?

Electrochemical energy storage has a fast response speed of milliseconds, which is mainly used for frequency modulation and short-term fluctuation suppression. However, electrochemical energy storage has a limited number of charge/discharge cycles and a short life span, making it not suitable for large capacity and long term use.