Photovoltaic 'Leader' plan to promote the application of advanced photovoltaic technology products and industrial upgrading, and guide the direction of technological innovation in order to achieve the goal of parity access to the Internet, the industry will pay more attention to the components.
The cost of the PV system, the core or the cost of the largest components, the cost of components to improve and reduce the price of parity on the Internet is the most important impact.Among them, the inverter as a bridge of the PV system, the cost of low but Great impact on power generation.
'The third batch of 13 front runner projects has just been announced. Only by combining the environmental characteristics of each front runner base, we advocate the selection of different types of inverters for different types of power stations, continuously reducing the cost of photovoltaic systems and increasing the power generation efficiency of the system to help users bid for the Internet Under the new model to get the maximum benefit. "TBEA Xi'an Electric Technology Co., Ltd. Deputy General Manager Peng Guoping told" Energy "reporter.
Inverter new products solve the shadow problem
In this year's first seminar on Innovative Leading Solutions, TBEA introduced the first 8-way MPPT string inverters in China, the TS50KTL_PLUS product, which can support string mixing and provide superiority support for photovoltaic technological transformation projects. Currently, No other manufacturers can support the string mix.
It is understood that the inverter MPPT permeability can reach 100%, completely eliminate PV power plant components due to inconsistent parameters and shading caused by the parallel matching components loss problem, suitable for mountain, roof and flat surface using double-sided battery tracking System Power Station Application.
In the past, the design time needed to be as far as possible to avoid the shadow area, occlusion area, if the application of PLUS models, you can take the 'active shadow occlusion design', designers can calculate, in potentially occluded areas layout components, layout PLUS inverter, thereby improving land utilization, increase investment rate of return.
'After calculation, the same land, the use of active shadow shading design can increase the amount of power generation more than 10%.' Peng Guoping said the inverter does not necessarily cost very fast decline or the price drop is very fast, but better able to put the component itself The ability to generate electricity is released.
Once the parity of Internet access, the development of the inverter will have a great positive.Peng Guoping told reporters: 'The current calculation of distributed PV now accounts for 2% of the country, in fact, there is still a very large space in the development if we can achieve parity Internet, you can put the remaining 98% of the space are released, for equipment manufacturers, inverter manufacturers, the market capacity will increase many times.
In the domestic market, the leaders, poverty alleviation and distribution are currently planned separately, mainly 1.25MW, 2.5MW centralized inverters and the corresponding inverter and boost integrated machine. The distributed aspects mainly introduce the multi-path MPPT Products, efforts to solve the problem of parallel adaptation.
It is reported that TBEA has completed a full range of 3kW-2500kW grid-connected inverter, PV inverter products used in more than 3,000 photovoltaic plants worldwide, cumulative installed capacity of more than 15GW, ranked the world's top five.
According to local conditions to deal with distributed diversification
One of the highlights of this year's PV industry is undoubtedly the explosive growth of distributed PV, with 15GW newly installed distributed in the first three quarters. Distributed photovoltaic power generation is not only capable of mitigating the "windward" and " It is of great significance to abandon the restriction of power rationing, reduce the subsidy demand for centralized development, and especially increase the supply of clean energy in cities.
'From the point of view of energy development, individuals think it must be the trend of development from centralized to distributed and irreversible. Distributed PV should be the most important representative of distributed energy.' "Peng Guoping said that distributed PV market is the focus of the inverter market.
Inverter is also from the centralized large-scale to distributed string development, TBEA product line from 2016 onwards, from the development of centralized inverter, centralized inverter and string inverter Development, the string inverter has now become one of the important pillars.
However, one of the problems faced by distributed systems is that the distributed scenarios are complex and diverse, and the access forms are diverse, varying from region to region, and higher demands are placed on the inverter. How to use it in different scenarios Guarantee power generation?
Respond to the development of distributed development, Peng Guoping told reporters that TBEA on the one hand quickly planned for the distributed power plant inverter series, on the other hand targeted to introduce differentiated products. Provided from 3-2500kW String and centralized two-way inverter, launched a mountain, water and a variety of overall situation solutions to meet the business roof, poverty alleviation, a variety of large-scale ground station scenarios.
For example, for distributed roof, TBEA introduced the 10kV inverter and one-step integrated inverter; for the shadow shading, the components Inclination and other complex terrain, the introduction of each group all the way MPPT more refined to improve the power generation inverter.
Prices, the current situation, the price of centralized inverters has basically stabilized, or even increased, there will be no significant future decline in space is expected in 2018 string inverter prices will be further reduced, will There is greater competition.
Not long ago announced the results of the national electricity vote with mining, many string inverter manufacturers down 15% -20% in price, but also indicates that next year's market competition will still be very intense.
'Components, all manufacturers are expanding in 2017, I believe the shortage of components in 2018 will not be as prominent as in 2017.' Peng believes that the price competition will be back to the component industry, the minimum is expected to reach 2 yuan Per watt
Taking into account the overall business development, TBEA will focus on both string and string-line development and development.According to Peng Guoping introduction, 90% of the Indian market are concentrated, the demand for centralized inverter products, the United States market concentration Inverter demand is also more than half.
Focusing on the international market, TBEA successfully entered the top ten PV EPC customers in India this year and the PV industry park in India is now under construction. It is expected to start operation in September 2018 and the new inverter production base will achieve annual 3GW production capacity. Layout India, Southeast Asia and other markets, but also actively layout the Americas including the United States, Brazil and other African markets, including Egypt, Nigeria and so on.
According to Peng Guoping introduction, the next step, TBEA will focus on the layout of distributed energy, while focusing on the large-scale global ground station, continue to enhance the centralized inverter technology and brand advantage, and gradually build a string inverter competitive differentiation advantage, Enhance the global PV market share.
