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With the rapid development of renewable energy, using energy storage technologies to balance the power grid and improve energy efficiency has become a hot topic for companies. Appropriate energy storage systems can not only help companies reduce energy costs, but also improve production efficiency, bringing enterprises the following benefits:
Reducing energy costs
Energy storage systems can store electricity during off-peak hours and release it during peak hours. This helps companies smooth out the load profile and avoid high electricity fees during peak times, thus significantly reducing overall energy costs. For example, after installing a 5MW lithium-ion battery energy storage system, the annual electricity fee of an industrial park dropped by 18.2%, saving costs of 1.2 million yuan. The energy storage system charges during off-peak hours and discharges at peak times, saving over 3,000 yuan in electricity fees per day on average.
Improving power reliability
Energy storage systems can provide power support in case of sudden power outages to avoid production line shutdowns. This is crucial for industrial production and commercial services that require operational continuity. Energy storage systems are actually an efficient and reliable form of backup power. A medical device factory equipped a 1MWh lead-acid battery as a backup power source. Afterwards, the loss due to sudden power outages decreased from about 100,000 yuan per year to 30,000 yuan, a reduction of 70%. Energy storage systems have a response time within 10 milliseconds, reliably ensuring the safe shutdown of critical equipment.
Supporting renewable energy
Energy storage systems can store excess renewable energy and release it when needed. This facilitates grid integration of more intermittent wind and solar power, promoting enterprises’ green and low-carbon development. A food processing park installed a 3MW solar PV system, but due to grid connection issues, only 30% of the power could be utilized. After adding a 2MWh vanadium redox flow battery energy storage system, its self-consumption rate of renewable energy increased to 65%. The energy storage system stores excess electricity, enabling maximum renewable energy utilization.
Improving power quality
The fast response of energy storage systems can fill gaps caused by grid faults, filtering out voltage fluctuations that could impact equipment and avoiding resultant losses. An automotive factory added a 500kWh supercapacitor energy storage system for critical welding processes. It quickly releases current to fill voltage sags caused by grid faults, effectively suppressing power fluctuations and ensuring welding quality.
Building microgrids
Energy storage is the key equipment for enterprises to achieve power supply autonomy and build microgrids. Microgrids are not only more reliable but can also help companies reduce grid transaction fees. A commercial complex utilized energy storage systems to achieve parallel operation with the main grid, forming a microgrid with partial autonomy. The microgrid supply reliability reached 99.999%, while grid transaction fees decreased by 10%.
Energy storage systems can effectively reduce enterprises’ energy costs, improve power reliability, support increased renewable energy integration, enhance power quality, and build microgrids. Adopting appropriate energy storage solutions can not only optimize corporate energy management, but also ensure continuous production and operations, enabling green and low-carbon development. Energy storage systems are becoming an important support for companies to reduce costs and stabilize supply. Looking ahead, with continued technology advancement, energy storage systems will bring more positive impacts to enterprises.
With over 10 years of experience in energy storage and more than 50 projects with a total capacity of 1GWh globally, Dowell Technology Co., Ltd. will continue to promote green energy and drive the world's transition to sustainable energy!
Dowell Technology Co., Ltd.
Website: https://www.dowellelectronic.com/
Email: marketing@dowellelectronic.com
Post time: Aug-21-2023