New Choice of Photovoltaic Poverty Alleviation Grid-Connected Inverter

"To win the battle against poverty, we must take stable poverty alleviation measures, establish a long-term poverty alleviation mechanism, and persevere in poverty alleviation work." This undoubtedly points out the direction for the development of photovoltaic poverty alleviation. In order to better respond to the national poverty alleviation plan, provinces, cities and municipalities are paying close attention to photovoltaic projects, and poverty alleviation projects in various places are also proceeding in an orderly manner.

Photovoltaic poverty alleviation policy Development and Reform Energy [2016] No. 621 "Opinions on the Implementation of Photovoltaic Power Generation Poverty Alleviation Work" pointed out: The current work goal is to focus on the 35,000 registered poor villages in 471 counties in 16 provinces with good light conditions in the early stage of pilot projects before 2020, and adopt village-level photovoltaic power stations (including household use) to ensure that 2 million registered poor households with no labor ability (including disabled people) will increase their income by more than 3,000 yuan per household each year. Other poor areas with good light conditions can promote implementation according to the requirements of targeted poverty alleviation and adapt to local conditions.

Since most photovoltaic poverty alleviation projects are located in remote rural areas, the actual situation is complex and changeable, and poverty alleviation projects are related to the image of the country and the government. Therefore, there are strict requirements for the inverter, the core component of the photovoltaic system.

In the whole photovoltaic grid-connected system, although the photovoltaic grid-connected inverter accounts for less than 10% of the total project investment, it plays a very critical role in the whole system. It is a node and a hub in the whole system. The quality of the photovoltaic inverter is directly related to the quality and life of the power station operation, and also to the actual effectiveness of the photovoltaic poverty alleviation project. Among the many inverter manufacturers, there is an online brand that stands out and attracts the editor's attention. That is Nanjing Yanxu (the company's WeChat public account: nanjingyanxu see Figure 1). Nanjing Yanxu photovoltaic grid-connected inverter is sold directly on Taobao (Taobao search: Yanxu photovoltaic grid-connected inverter), with a very high cost performance, and is widely praised by customers (Figure 3).

Figure 2 Yanxu grid-connected inverter

From the appearance of the manufacturer's products (Figure 2) and related technical indicators (Figure 4), there is nothing particularly outstanding. Why can such an unprepossessing product be so successful in Taobao direct sales, which pays more and more attention to customer experience? After the editor took this question and made in-depth research, he learned that the current market price of the manufacturer's inverter is lower than the market average price. The price of their 5KW grid-connected inverter is only about 3,000 yuan. The price of some old customers may be slightly lower than this price. Through the editor's continuous digging, it is found that although the price of this inverter is low, it is not cutting corners, but strictly controlling the product quality. Some core components are imported brands from abroad. Therefore, the product quality and power generation efficiency are not worse than many well-known manufacturers in the market, and some power generation data even exceed some well-known manufacturers. Good quality, low price and high power generation efficiency naturally win the favor of many Taobao customers.

Figure 3: Customers give rave reviews

So why is the price of this grid-connected inverter so low? The editor believes that such a price should be due to Taobao's online direct sales model, which is different from the multi-level distribution model of big-name manufacturers. This can greatly save the intermediate distribution costs and benefit the end customers.

The editor browsed the official website of the manufacturer (www.njyxdq.com) and found that the manufacturer started out by making DSP development platforms. According to the editor's understanding, the core part of the current photovoltaic grid-connected inverter is the DSP in the Texas Instruments 2000 series, and the DSP development platform is one of the manufacturer's core products. Therefore, it is not difficult to understand that the manufacturer is fully capable of independently launching such an application-oriented product.

Figure 4 Technical indicators

The editor's judgment has been verified in the sales records of the manufacturer's Taobao store. As early as 2012, they started selling inverters. At that time, many of the sales targets were users from schools and scientific research institutions, as well as photovoltaic enthusiasts. In the early stages of sales, they also encountered many unconventional problems, such as the difficulty of grid-connecting after enthusiasts bought the inverters. However, this should not be a problem for them with original technology. They quickly launched a local anti-reverse flow grid-connected inverter, which solved the problem of power generation and reverse metering during the long photovoltaic grid-connected review period. This function has won praise from many enthusiasts.

We all know that many well-known manufacturers are unwilling to produce for some customers with small-batch customization needs because the customization cost is too high. However, this manufacturer is able to do the opposite and carry out flexible customized production based on the actual needs of customers, actively meet the needs of customers, and thus achieve its own market expansion. This is precisely the perfect interpretation of the manufacturer's technological originality and Internet business advantages.

The photovoltaic poverty alleviation project involves about 35,000 registered poor villages in 471 counties in 16 provinces. Many photovoltaic poverty alleviation projects are located in remote rural areas, which requires strong technical strength and flexible structural adjustment plans to solve the complex and changeable actual situation, which is exactly what Nanjing Yanxu is best at.

Photovoltaic poverty alleviation will benefit future generations, and selecting the right inverter is the key. The inverter discovered by the editor is not good-looking, but it has outstanding cost-effectiveness, stable service, and strong technology. It is very suitable for the current photovoltaic poverty alleviation project application. Moreover, it is sold directly on Taobao online stores with simple sales channels. For purchasing customers, Taobao's customer evaluation system can also well protect the rights and interests of customers. Therefore, buying directly on Taobao is a good choice.