1. Project overview

The project is located in the north of an electric company's campus, covering an area of about 800m2. It is composed of 5kW fan, 66kW photovoltaic, 100kW/215kWh energy storage, 6 AC-DC charging piles and energy management system. The whole system is controlled by the energy management system during operation, fully opening the connection between the source side, the network side, the load side and the storage side, deeply optimizing the energy management level of the system, realizing the full local consumption of the green electricity hospital area, and making every effort to create a high standard "zero carbon" demonstration project.

The project is expected to generate about 88,000 kWh of new energy power annually, which can meet the charging demand of 1,760 new energy vehicles per time, and the annual energy storage capacity of "peak-cutting and valley filling" is about 62,800 kWh, achieving cost reduction and efficiency increase for the company's operations. The project innovation combines photovoltaic, carport and charging pile, which can not only improve energy efficiency, facilitate the charging needs of new energy vehicles for employees, but also provide demonstration cases for solving problems such as breaking through the transformer capacity limit and efficiently using idle construction land in the development of enterprises.

The whole system is supervised by the microgrid monitoring and management system during operation, and the microgrid monitoring and management system monitors the network structure, which is mainly composed of the energy management system, the microgrid centralized monitoring system (operation and maintenance center), the private switch, the PC data server, the data collector and the monitoring module of each power generation unit to realize the real-time monitoring and management of the microgrid.

2.Characteristic of project

◆ Energy asset management: unified maintenance, management and statistical analysis of ledger, topology and business information of distribution network assets, new energy stations, energy storage power stations and metering equipment assets.
◆ Intelligent regulation and control application: In the production region to achieve the optimal regulation and control of the park light storage, source network load and storage coordination control. In the management area of the distribution network, new energy station, energy storage power station operation monitoring, power generation capacity and other comprehensive monitoring, as well as power failure management, fault management and other applications.
◆Intelligent operation and inspection application: operation and distribution integration collaborative operation and maintenance management, covering new energy power generation, power grid and heat network, metering, enterprise user custodial asset inspection and defect management, through planning management, work order management, mobile inspection and other applications, to achieve efficient operation and maintenance inspection command. 

3.Eco-efficiency value

The integrated platform of source, network, load and storage achieves deep coordination among source, network, load and storage by optimizing energy allocation and scheduling, and brings significant management, economic and social benefits to enterprises.
In terms of economic benefits, the platform can improve the comprehensive utilization efficiency of energy, through the optimization of photovoltaic and energy storage scheduling, reduce the cost of electricity during peak hours, store electricity during low hours, and improve the energy efficiency of output value by about 10%. In addition, additional benefits such as intelligent interactive response to grid demand, load aggregation interactive solutions and power assistance services are expected to increase energy revenue by 20%.