BESS refers to a variety of emergency energy storage batteries.
With the improvement of the requirements of various application systems on the cycle life, working environment and environmental protection of the supporting batteries, lithium batteries are increasingly equipped in various systems related to energy storage due to their unique characteristics of high voltage, high capacity, long life, environmental protection and no pollution. Its supporting systems include home energy storage system, special portable energy, portable emergency communication power supply, solar street lamp system, communication power supply system, monitoring station working power supply system, integrated energy storage system, solar power generation system, etc.
Applications:
telecommunications, communications, solar energy storage battery, UPS uninterrupted power supply, hydropower station, wind power energy storage, mobile communication base station, street lighting and urban lighting engineering, emergency lighting, forklift, car starting, lighting, fire prevention, safety system, etc.
1, Solar BESS
1) Photovoltaic off-grid power generation system
Photovoltaic off-grid power generation system, independent of the power grid and independent operation, used in remote mountains, no power areas, islands, communication base stations and street lights and other applications. The system consists of photovoltaic array, solar controller, inverter, battery, load and so on. Photovoltaic array converts solar energy into electric energy when there is light, and the inverter is controlled by solar energy to power the load and charge the battery at the same time. When there is no light, the battery supplies power to the AC load through the inverter.
2) And off-grid energy storage system
And off-grid photovoltaic power generation system is widely used in frequent power outage, or photovoltaic self-use can not spare online, self-use price is much more expensive than the on-grid price, peak price is much more expensive than the trough price and other application places.
The system is composed of photovoltaic array of solar cell modules, solar and off-grid integrated machine, battery group, load and so on. Photovoltaic array converts solar energy into electric energy when there is light, and the inverter is controlled by solar energy to power the load and charge the battery at the same time. When there is no sunlight, the battery supplies power to the solar control inverter and then to the AC load.
Compared with grid-connected power generation system and off-grid system, charge and discharge controller and storage battery are added, the system cost increases by about 30%, but the application range is wider. First, it can be set at the peak of the electricity price with rated power output, reduce the cost of electricity; The second is the electricity price valley charging, peak discharge, the use of peak valley difference to make money; Third, when the power grid is cut off, the photovoltaic system continues to work as a backup power supply, the inverter can be switched to off-grid mode, and the photovoltaic and battery can supply power to the load through the inverter.
2, Solar Street Light
The solar street lamp system is generally used for the street lamp lighting of urban and rural roads. The intelligent street lamp system can realize the intelligent remote monitoring and management of street lamps and reduce the operation and maintenance costs of the system.
