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.

分布式太陽能發(fā)電和儲(chǔ)能技術(shù)結(jié)合的主要驅(qū)動(dòng)因素是節(jié)約成本和減少對(duì)電網(wǎng)的依賴性。從成本角度看，消費(fèi)者或社區(qū)投資該技術(shù)的主要?jiǎng)恿κ菧p少電費(fèi)支出。光伏發(fā)電是領(lǐng)先技術(shù)，而通過儲(chǔ)能可以增加太陽能發(fā)電的利用率，從而增加經(jīng)濟(jì)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.

這兩種技術(shù)相結(jié)合的主要?jiǎng)恿κ墙鉀Q電網(wǎng)供電的不穩(wěn)定性問題。消費(fèi)者購買儲(chǔ)能系統(tǒng)后，就可以享受不間斷的電力。太陽能發(fā)電可以支持儲(chǔ)能系統(tǒng)延長(zhǎng)供電時(shí)間，進(jìn)一步提高了儲(chǔ)能系統(tǒng)的價(jià)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.

儲(chǔ)能成本高昂是目前普遍存在的一個(gè)問題。

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

太陽能發(fā)電技術(shù)成本在過去二十年已大幅下降，并將繼續(xù)下降。鋰離子電池正成為可與太陽能互補(bǔ)的全球領(lǐng)先儲(chǔ)能技術(shù)，但鋰電池要實(shí)現(xiàn)成本下降，仍需擴(kuò)大產(chǎn)業(yè)規(guī)模。這其中主要的推動(dòng)因素就是電動(dòng)汽車的增加，而電動(dòng)車通常使用鋰電池。雖然儲(chǔ)能技術(shù)可以提高太陽能的總體價(jià)值，但其并不是唯一。其他的選擇包括提高可再生能源預(yù)測(cè)準(zhǔn)確性、改善需求響應(yīng)能力和增加柔性載荷、蓄熱技術(shù)和電能轉(zhuǎn)氣等新興技術(shù)。值得注意的是，價(jià)格低廉的天然氣可以提供低成本且高度靈活的電力，作為太陽能的補(bǔ)充，而這降低了儲(chǔ)能技術(shù)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.