目前在新能源领域，光伏电站已经是很多大企业的首选，利用太阳能转化成的电，可以直接每年为企业剩下省下一大笔的电费。其中光伏电站还分为光伏离网系统和光伏并网系统。两套系统一字之差，价格却差了数千。
At present, in the field of new energy, solar power stations have become the first choice of many large enterprises. The electricity converted from solar energy can directly save a large amount of electricity bills for the rest of the enterprise every year. Solar power systems are also divided into solar off-grid system and solar grid-connected system. The difference between the two systems is one word, but the price is thousands.
光伏离网系统指的是，通过太阳能转化的电转存在蓄电池里。目前蓄电池有铅酸电池、锂电池，在离网系统它占据了发电系统的30%-50%的成本。从市场的离网系统所用电池来看，铅酸蓄电池一般都在3年左右，锂电池寿命在6、7年，随着高效电池技术的更新，蓄电池的寿命在未来会逐渐增加。离网逆变器一般有四级结构，包括控制器、升压、逆变、隔离。
Solar off-grid system means that the electricity converted by solar energy is stored in the battery. At present, there are lead-acid batteries and lithium batteries, which account for 30% - 50% of the cost of the power generation system in the off-grid system. From the perspective of batteries used in the off-grid system of the market, lead-acid batteries generally have a life of about 3 years, and lithium batteries have a life of 6 or 7 years. With the update of high-efficiency battery technology, the life of batteries will gradually increase in the future. Off-grid inverter generally has four-stage structure, including controller, boost, inverter and isolation.
光伏并网系统指的是，通过太阳能转化的电，直接接入电网，需要配备双向电表，并网系统所发的电是交流电，可以直接用于家庭的负载，多余的电还可以卖入电网。但是并网逆变器一般是升压和逆变两级结构。
Solar grid-connected system means that the electricity converted by solar energy can be directly connected to the grid, and two-way electricity meters need to be equipped. The electricity generated by the grid-connected system is AC, which can be directly used for household load, and the surplus electricity can also be sold into the grid. However, the grid-connected inverter is generally a two-stage structure of boost and inverter.
从构成、成本、效率综合来看，光伏离网系统成本比较高，而且会盈余电量无法储存，因此离网发电系统是专门针对无电网地区或经常停电地区场所使用的。
From the perspective of composition, cost and efficiency, the PV off-grid system is relatively high in cost, and the surplus power cannot be stored. Therefore, the off-grid power generation system is specially designed for use in areas without power grid or areas with frequent power outages.
随着太阳能支架系统技术的成熟，产品质量的提升，围绕离网与并网的应用也会越来越多，相信在不久的将来将会有更多的企业工厂因此获益，也助力了全球的绿色能源可持续发展。
With the maturity of solar mounting system technology and the improvement of product quality, there will be more and more applications around off-grid and grid-connected. It is believed that more enterprises and factories will benefit from this in the near future, which also contributes to the sustainable development of global green energy.
其中，晨科作为全球光伏支架工厂的先驱者，已经在优质太阳能支架解决方案坚持了16年，为许多全球大卖家解决光伏支架技术方案。如果你不知道如何选择方案，请将需求发送给我们，我们有专业的光伏支架解决方案技术团队为你解答！
Among them, Chiko, as the pioneer of Solar mounting factory in the world, has been persisting in high-quality solar mounting solutions for 16 years, and has solved Solar mounting technical solutions for many global big sellers. If you don't know how to choose a solution, please send us the demand, and we have a professional technical team of solar mounting solution to answer for you!
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