Recently, Qualtech's first off-grid energy storage station control system application project, Hengda Outdoor Energy Storage 100kW/200kWh Project, has been successfully landed and put into operation. This is not only a reflection of the company's technical strength, but also an important step to seize market opportunities and achieve sustainable development.
In the global energy landscape, off-grid energy storage station control systems are playing an increasingly important role, especially in remote areas with weak grid coverage, such as mountain areas, no-power areas, and islands. These areas are geographically remote or the cost of power grid construction is too high, it is difficult to access the traditional power grid, and off-grid energy storage system with its stable power supply, emergency backup, mobile and energy saving and emission reduction advantages, become the key technology to solve the local power supply problems, greatly meet the urgent demand for electricity in these areas.
With the soaring global demand for sustainable energy, the off-grid energy storage system market has mushroomed. It is expected that by 2030, the global off-grid energy storage system revenue will grow significantly, and the compound annual growth rate will steadily climb. As an important force in the global market, China's growth rate is particularly remarkable. The government's policy support for renewable energy such as solar energy and wind energy, as well as the encouragement of off-grid energy storage systems in household and enterprise applications, has laid a solid foundation for the prosperity of the market.
Technological progress is the core driving force for the development of off-grid energy storage systems. In recent years, battery technology has made a leap forward, energy density and cycle life have been significantly improved, and the wide application of intelligent control technology has greatly improved the operating efficiency and safety of energy storage systems. These breakthroughs not only reduce the cost of off-grid energy storage systems, but also optimize their performance, allowing them to show greater development potential in the future energy market.
In addition, off-grid energy storage systems show unique value in low-carbon, economic, social and other levels. At the low-carbon level, it achieves zero emissions of energy supply by integrating solar, wind and other renewable energy sources, effectively reducing carbon emissions, and effectively promoting the green transformation of the energy industry. From an economic point of view, the off-grid energy storage system uses mains or renewable energy to replace diesel power supply, which not only reduces the cost of energy consumption, but also reduces the maintenance and operation costs of the generator, and effectively saves expenses for users. At the social level, off-grid energy storage systems have brought stable power supply to remote areas. With the continuous innovation of technology and the gradual reduction of costs, it is expected to be promoted and applied in more remote areas, so as to promote the widespread popularization of clean energy, further improve the quality of local living standards and economic development, and become an important driving force for sustainable social development.
The off-grid energy storage station control system (LEMS-ESS) is precisely such a new energy management solution tailored for outdoor operations, remote areas, frequent power outage areas and overseas markets. Through integrated environmental control, it realizes localized management of energy storage equipment, and ensures stable and efficient data transmission by means of direct network cable connection, providing users with reliable and intelligent energy supply solutions.
LEMS-ESS has built-in intelligent processing mechanism, equipped with anti-island device (intelligent circuit breaker), which can automatically realize the grid-connected and off-grid switch of the station in the case of no mains supply, so as to ensure that the energy supply is not interrupted. This feature is particularly critical in outdoor energy storage applications. In remote areas with no mains power and short working cycle and many site changes, the system adopts a combination mode of energy storage and diesel engine, daily energy storage power supply is the main, the diesel engine is activated in special cases, and the constant power charging and constant voltage energy supply are realized through the intelligent switching of the embedded processing system.
In the field of emergency backup power, LEMS-ESS also plays an important role. In remote mountainous areas, areas without electricity, islands, communication base stations, street lights and other places, due to geographical or cost factors cannot access the traditional power grid, LEMS-ESS has become the main force of power security. It is usually composed of photovoltaic modules, battery packs, inverters, when there is light or wind, the energy is converted into electricity for load use and charge the battery; When energy is insufficient, the battery relay supplies power to the AC load through the inverter to ensure continuous and stable power.
LEMS-ESS can also be combined with renewable energy power generation equipment (such as solar photovoltaic, wind power, etc.), the system is configured with intelligent management and control strategies, intelligent switching and off-grid mode, rational use of energy, maximize the local consumption of distributed energy, and improve the flexibility and reliability of system operation. This makes LEMS-ESS suitable for industrial parks, business districts, remote areas and other scenarios, which can effectively help the popularization of clean energy.
With its excellent performance, the LEMS-ESS system of Qualtech is leading the new trend of energy management. Through the industrial computer, LEMS-ESS realizes the private deployment of the system, and can easily access 1-3 storage cabinet devices. It not only has the core functions of communication equipment data acquisition and processing, remote monitoring operation, policy centralized management and control and data storage and analysis, but also supports diversified applications of centralized control station/station monitoring system, including SCADA, diagram and mode library integration, topology analysis, asset management, BMS monitoring and control, PCS monitoring and control. In addition, LEMS-ESS integrates key functions such as big data analysis, electricity price management, and remote operation and maintenance to provide a comprehensive solution for energy management.
LEMS-ESS's intelligent algorithm model is one of its technical highlights, which enables full-range monitoring at the core level to accurately analyze the health status, failure and weakening trends of the battery. Working in collaboration with BMS makes LEMS-ESS a safer, smarter, more reliable and more maintainable energy management partner.
Compared with traditional EMS, Qualtech LEMS-ESS abandons complex development docking, long delivery wait and operation and maintenance monitoring problems, and can quickly achieve station management. As a new generation of automation application platform, LEMS-ESS is the wisdom crystallization of new design based on the successful experience of power monitoring system and the development trend of power automation and new energy. It is not only a product, but also a deep understanding and commitment of Qualtech to future energy management.
In the future, Qualtech will continue to pursue excellence, keep up with the pace of the market, and lead technological innovation and product upgrading with innovation. We will be committed to improving the off-grid energy storage station control system scheme to meet diversified energy needs. We look forward to working with more partners to jointly promote the green and efficient development of the energy industry and inject new impetus into sustainable development.