Peak shaving, or load shedding, is a strategy for eliminating demand spikes by reducing electricity consumption through battery energy storage systems or other means.
Should energy storage system be used for peak shaving?
An energy storage system (ESS) application is more advantageous than the demand response program, where it allows customers to simultaneously shave peak load and perform daily activities as usual. Therefore, future research should emphasise on the proper application of DSM with ESS system for peak shaving purpose.
In the power system, the load usually shows “peak” and “valley” differences. It refers to the fact that the load is higher during certain times of the day and lower during other times of the day. In order to meet the peak demand, the power system needs to carry out peak-shaving.
Is peak shaving a viable strategy for battery energy storage?
Amid these pressing challenges, the concept of peak shaving emerges as a promising strategy, particularly when harnessed through battery energy storage systems (BESSs, Figure 1). These systems offer a dynamic solution by capturing excess energy during off-peak hours and releasing it strategically during peak demand periods.
In this study, a significant literature review on peak load shaving strategies has been presented. The impact of three major strategies for peak load shaving, namely demand side management (DSM), integration of energy storage system (ESS), and integration of electric vehicle (EV) to the grid has been discussed in detail.
How does energy storage facilitate peak shaving and load shifting?
Energy storage can facilitate both peak shaving and load shifting. For example, a battery energy storage system (BESS) can store energy generated throughout off-peak times and then discharge it during peak times, aiding in both peak shaving (by supplying stored energy at peak periods) and load shifting (by charging at off-peak periods).
Which energy storage technology is used for peak load shaving?
Among various energy storage technologies, electrochemical technology based BESS is mostly used for peak load shaving. The use of different battery energy storage technologies for peak shaving can be found in the previous literature, , , , , , , .