钠电池可以离网储能使用吗？

Can Sodium-ion Battery be used for off-grid energy storage?    

钠离子电池完全适配离网储能场景，是离网光伏、离网风电系统的核心储能单元，完美解决偏远地区、无电网覆盖区域的供电难题。离网储能场景的核心需求是独立运行、长期稳定、免维护、耐高低温、成本低，钠电池完全满足这些需求。离网光伏、风电系统发电间歇性强，需要电池长期储能、浅充浅放，钠电池循环寿命长、满电存放稳定、自放电率低，可完美匹配离网发电的工作模式；同时钠电池耐高低温、抗老化、免维护，可在偏远无运维的户外环境长期稳定运行；成本低廉，可大幅降低离网储能系统的建设成本，目前已在偏远山区、牧区、海岛、边防哨所等无电网覆盖区域的离网供电项目中大规模应用。

Sodium-ion Battery is fully suitable for off-grid energy storage scenarios, and is the core energy storage unit of off-grid photovoltaic and off-grid wind power systems, which perfectly solves the power supply problem in remote areas and areas without power grid coverage. The core requirements of off-grid energy storage scenarios are independent operation, long-term stability, maintenance-free, high and low temperature resistance, and low cost, which are fully met by sodium batteries. Off-grid photovoltaic and wind power systems have intermittent power generation, which requires the battery to store energy for a long time, shallow charge and shallow discharge, and stand by all year round. Sodium batteries have long cycle life, stable full charge storage, low self-discharge rate, which can perfectly match the off-grid power generation mode; at the same time, they are resistant to high and low temperatures, aging, and maintenance-free, and can be operated for a long time in remote outdoor environments without operation and maintenance; the cost is low, which can greatly reduce the construction cost of off-grid energy storage systems. At present, they have been widely used in off-grid power supply projects in remote mountainous areas, pastoral areas, islands, border defense posts and other areas without power grid coverage.