Daily energy storage adjustment

Does energy storage provide flexibility?

The value of energy storage providing flexibility is dependent on the renewable mix. when the penetration is exceeded 15 %, deploying energy storage can effectively reduce the daily operating costs of high PV generation-penetrated power systems, while the impacts on high wind power-penetrated scenarios are less obvious.

How can energy storage devices improve on-site energy consumption?

Author to whom correspondence should be addressed. Configuring energy storage devices can effectively improve the on-site consumption rate of new energy such as wind power and photovoltaic, and alleviate the planning and construction pressure of external power grids on grid-connected operation of new energy.

Can dynamic time-of-use electricity prices improve energy storage capacity?

Using dynamic time-of-use electricity prices can more flexibly obtain the capacity configuration scale of energy storage. The article adopts the capacity and maximum power values of energy storage configuration in each season, which can meet the demand for energy storage capacity in each season.

What is the optimal energy storage system capacity?

With a lower penetration rate, e.g., below 18 % in Scenario 5, the optimal energy storage system capacity is approximately zero, indicating that in the presence of a low share of renewable energy, flexibility from existing thermal power units is sufficient for renewable accommodation, and no additional flexible resources are needed.

How to control energy storage system?

In the entire control strategy, the charging and discharging of energy storage should be dynamically adjusted based on the state to avoid the problem of energy storage system exceeding the limit.

Does energy storage configuration affect social welfare maximization (SWM)?

Based on the poor utilization ratio and high use cost of energy storage configured on the user side, the controllability of adjustable load and the rationality of energy storage configuration are two key points that need to be considered for social welfare maximization (SWM).