Haimen's first user-side energy storage power station is put into trial operation

After installation and commissioning some time ago, the energy storage power station of Xingwang Meat Products Co., Ltd. entered the trial operation stage. This is the first user-side energy storage power station in Haimen City, marking a new journey for the development of Haimen's comprehensive energy and emerging energy use.

In the factory workshop, energy storage cabinets are neatly arranged. The entire energy storage power station consists of 6 sets of 100Wh/20kV cabinet-type energy storage units, each of which consists of seven energy storage batteries. After the project is connected to the grid, it will be operated in a two-charge and two-discharge mode every day. From 24:00 to 8:00 in the evening and from 12:00 to 17:00 in the afternoon, the power grid will continue to charge the energy storage batteries; from 8:00 to 12:00 in the morning and from 17:00 to 24:00 in the evening, the energy storage batteries will continuously discharge and supply power to connected users. The energy storage power station is expected to be used for 8 years.

The batteries in the energy storage power station are not ordinary batteries. In the past two years, the electric vehicle market has been booming. At the same time, the fate of electric vehicle batteries after retirement has become the focus of many people's attention. This is a huge resource library, and energy storage is one of the most critical areas for the reuse of retired batteries. When the battery capacity of an electric vehicle is less than 80%, it does not meet the standards and becomes a retired battery. However, retired batteries can be used in a gradient manner. The batteries used in the construction of this energy storage power station are all retired batteries from electric vehicles. The rational reuse of resources not only reduces the company's investment costs, but also protects the environment.

The energy storage station uses an energy storage system that uses energy-type battery packs as energy storage elements. It stores electricity during the "valley" period of electricity and discharges it during the "peak" period of electricity, achieving peak shaving and valley filling, effectively reducing the peak load of the power grid. While being beneficial to the safe operation of the power grid, it is also beneficial to the reasonable transfer of power loads, improving the utilization efficiency of system equipment capacity and saving energy, reducing corporate production and electricity costs, and maximizing social benefits.

For enterprises, the economic value gained from long-term operation is obvious. At present, the factory area of ​​Xingwang Meat Products Co., Ltd. implements a two-part electricity price for large industrial electricity consumption of 1~10 kV, with peak period of 1.0697 yuan/kWh, flat period of 0.6418 yuan/kWh, valley period of 0.3139 yuan/kWh, and peak-valley price difference of 0.7558 yuan/kWh. Through valley charging and peak power supply, using the intermediate electricity price difference and superimposing the energy-saving benefits obtained by changing the basic electricity price measurement method, the enterprise is given 6 cents per kilowatt-hour, and the enterprise can obtain preferential electricity price benefits of about 21,000 yuan per year.

If companies need to expand their production capacity in the future, the power energy storage system can also effectively solve the demand for distribution system expansion caused by excessive power load during peak hours, saving costs and time for power capacity expansion. It can be said that it is a double harvest of service benefits.