Peak-valley arbitrage: Taking advantage of the peak-valley electricity price difference, charging during valley periods and flat periods, and discharging during peak and peak periods, reducing enterprise electricity costs. Peak shaving and valley filling: The energy storage system can perform peak shaving and valley filling, eliminating peak loads, smoothing the power consumption curve, and reducing demand electricity bills. Dynamic capacity expansion: The user's transformer capacity is fixed. Generally, when the user needs the transformer to be overloaded for a certain period of time, the transformer capacity needs to be expanded. After installing a matching energy storage system, the transformer load can be reduced through energy storage and discharge during this period, thereby reducing the cost of transformer capacity expansion and transformation. Demand-side response: After installing an energy storage system, if the power grid issues demand response, customers do not need to limit power or pay high electricity bills during that period. Instead, they may participate in demand response transactions through the energy storage system and obtain additional compensation fees.

Electricity demand is high. Those enterprises/scenarios with large demand for electric energy, such as industrial parks, manufacturing, data centers, etc., usually have highly fluctuating power demand. Industrial and commercial energy storage systems can help such companies smooth their electricity consumption curves and reduce electricity costs. The power quality requirements are high. Some enterprises and parks will experience low voltage during the production process. Especially during peak load periods, the terminal voltage seriously goes offline. Equipping industrial and commercial energy storage systems can stabilize power output, improve power quality, and avoid the impact on production due to power fluctuations or interruptions. The peak-to-valley electricity price difference is large. Enterprises implement the local time-of-use electricity price policy for electricity use, and the average peak-to-valley price difference is large. It is generally recommended to be above 0.8 yuan/kwh. The enterprise's electricity load period covers the peak period (and peak period, if any), and all electricity is used at night, so it is not suitable for construction. During valley periods and flat periods of enterprise power consumption, the transformer still has enough remaining capacity to charge the energy storage system, excluding the enterprise's original load. The company has fewer days of shutdown for maintenance and off-season, and the annual utilization time of the energy storage system is more than 270 days. If the energy storage utilization time is not high, the yield will be low.

User's electricity consumption type: Make it clear whether the user's electricity consumption type is large industrial electricity or general industrial and commercial electricity. Billing method: Clarify whether the user's electricity billing method is a single system or a two-part system. The demand electricity bill takes into account the maximum demand control and does not affect the basic electricity bill. The above two points can be understood through the electricity bill (generally required for the last 6 months), which mainly involves electricity price information, demand or capacity electricity charges. Transformer capacity: When the energy storage system is charging, it is equivalent to the load. If the existing transformer has insufficient spare capacity, the installed capacity of the energy storage system will be limited. It is necessary to understand the usage status of existing transformers and load occupied capacity, especially whether the transformer has spare capacity during off-peak hours at night. It is necessary to collect the load status of the park's transformers and the power load curve as much as possible.

Try to choose a place that is far away from offices and dense crowds, close to the access point power distribution room (within 100m recommended) and convenient for cable routing. Consider a hardened site that is easy to transport, hoist, and load-bearing.

The energy storage power station construction process includes preliminary fund collection and survey - scheme design - project filing - drawing design - access approval - construction - equipment commissioning - completion acceptance. The overall construction period is determined by the time required for different project processes; after the procedures are completed, The formal construction period is about 1-1.5 months; a short-term power outage is required to install the grid-connected cabinet, and the minimum power outage time is about 2 hours.