New energy battery energy storage configuration plan

What is a large-scale battery energy storage system (BESS)?

Large-scale battery energy storage system (BESS) can effectively compensate the power fluctuations resulting from the grid connections of wind and PV generations which are random and intermittent in nature, and improve the grid friendliness for wind and PV generation grid integration.

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.

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.

Does China have a large-scale battery energy storage system?

In this paper, the system configuration of China’s national demonstration project which has mixed various generations, such as wind, PV, and BESS together with a power transmission system is introduced, and the key technologies and operation status of large-scale battery energy storage system have been presented.

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.

Why should energy storage facilities be installed?

For new energy units, proper deployment of energy storage facilities can promote the consumption of excess generation, increase the option of selling electricity in the high price period, participate in the competition auxiliary service market, and improve the return on total life cycle assets.