Peak-to-trough:
The ability of an energy storage system to store electricity during periods of low demand (e.g., at night) and release it during periods of high demand (e.g., during the day) is known as peak fill. This function helps to balance the demand curve, reducing the strain on the grid and avoiding shortages caused by spikes in peak demand. It also enhances the stability and reliability of the power system, ensuring that consumers receive a stable supply of electricity at all times. In addition, consumers can take advantage of lower tariffs to store electricity during the valley hours and use the stored electricity during the peak hours, thereby reducing the overall cost of electricity consumption and achieving savings.

Demand suppression:
Energy storage systems can effectively dampen peaks in electricity demand, which is particularly important for industrial and commercial users. This is particularly important for industrial and commercial customers, who are often faced with high demand charges due to rapid increases in instantaneous power usage. Energy storage systems reduce instantaneous electricity consumption by releasing power during high demand periods, thereby reducing demand charges. This not only reduces the financial burden on consumers, but also prevents overloading of the grid and improves the overall efficiency of the power system.

Reducing over-contracting:
Electricity contracts usually specify a maximum amount of electricity that a customer can consume, beyond which he or she faces a high penalty for overruns. Energy storage systems can automatically release power near the maximum usage level to avoid exceeding the contracted limit. This not only helps customers to avoid paying high penalties, but also helps them to manage and optimize their electricity consumption more flexibly. By reducing contract overruns, energy storage systems can also help businesses improve the accuracy of their electricity planning and achieve more efficient energy management.