Solar energy and energy storage technology each have their own advantages. Solar power generation can achieve zero carbon emissions without additional costs. Energy storage technology can provide backup power, frequency regulation, and other grid services. Combining the two can provide further advantages, especially in achieving continuous power supply at night, increasing output within available power generation time, and improving grid flexibility. In distributed communities and rooftop systems, the combination of solar energy and energy storage technology can also reduce distribution network pressure, delay or reduce infrastructure investment. At the macro level, energy storage and solar power generation can increase the penetration rate of solar facilities without significant changes, thereby reducing carbon emissions. The combination of energy storage technology and solar power generation can also serve as a fast track for electrification in emerging markets.

分布式太阳能发电和储能技术结合的主要驱动因素是节约成本和减少对电网的依赖性。从成本角度看，消费者或社区投资该技术的主要动力是减少电费支出。光伏发电是领先技术，而通过储能可以增加太阳能发电的利用率，从而增加经济利益。

The main driving factors for the combination of distributed solar power generation and energy storage technology are cost savings and reduced dependence on the power grid. From a cost perspective, the main driving force for consumers or communities to invest in this technology is to reduce electricity bills. Photovoltaic power generation is a leading technology, and energy storage can increase the utilization rate of solar power generation, thereby increasing economic benefits.

这两种技术相结合的主要动力是解决电网供电的不稳定性问题。消费者购买储能系统后，就可以享受不间断的电力。太阳能发电可以支持储能系统延长供电时间，进一步提高了储能系统的价值。

The main driving force of the combination of these two technologies is to solve the instability problem of power supply in the power grid. After purchasing an energy storage system, consumers can enjoy uninterrupted electricity. Solar power generation can support energy storage systems to extend power supply time, further enhancing the value of energy storage systems.

储能成本高昂是目前普遍存在的一个问题。

The high cost of energy storage is currently a common problem.

太阳能发电技术成本在过去二十年已大幅下降，并将继续下降。锂离子电池正成为可与太阳能互补的全球领先储能技术，但锂电池要实现成本下降，仍需扩大产业规模。这其中主要的推动因素就是电动汽车的增加，而电动车通常使用锂电池。虽然储能技术可以提高太阳能的总体价值，但其并不是唯一。其他的选择包括提高可再生能源预测准确性、改善需求响应能力和增加柔性载荷、蓄热技术和电能转气等新兴技术。值得注意的是，价格低廉的天然气可以提供低成本且高度灵活的电力，作为太阳能的补充，而这降低了储能技术的吸引力。

The cost of solar power generation technology has significantly decreased in the past two decades and will continue to decline. Lithium ion batteries are becoming a leading global energy storage technology that can complement solar energy, but in order to achieve cost reduction, the industry still needs to expand. The main driving factor is the increase in electric vehicles, which typically use lithium batteries. Although energy storage technology can enhance the overall value of solar energy, it is not the only one. Other options include improving the accuracy of renewable energy forecasting, improving demand responsiveness, and increasing flexible loads, heat storage technology, and emerging technologies such as converting electricity to gas. Most notably, low-cost natural gas can provide low-cost and highly flexible electricity as a supplement to solar energy, which reduces the attractiveness of energy storage technology.