July 14, a resident in Shangrao formal roof PV systems and network operation and became Jiangxi ten thousand rooftop photovoltaic demonstration project in the successful completion of the first grid-acceptance of the project.

The project overall installed capacity of 5KW, assembly areas selected 20 Jinko 250W polycrystalline modules landlord intends to use a conventional string inverter 3kW group of Yu with 2kW photovoltaic micro-inverter (additional ECU energy manager, monitoring the work of each component) to form a small comparison system and within the system were installed in two inverter meter measurement, the purpose is to gather relevant power generation, photovoltaic power plants for subsequent civilian use inverters provide reliable data to support.

According to the project owner to reflect: "In the two sunny days, 2kW micro-inverter system throughout the day, made a 12 kilowatt system, 3kW string inverter system made a 16 kWh, 3kW system to send electricity to 18 degrees and micro-inverter system generating capacity balance. "Thus, taking into account the difference between installed capacity, power generation micro inverse system than about 13% higher than conventional systems.

June 7 this year, Jiangxi Province promulgated the "ten thousand rooftop photovoltaic demonstration project implementation plan (Trial)", will be selected in a range in the province conditional residential roof 10000, in accordance with the maximum not exceeding 5 kW per household, the average 3 kilowatts of installed capacity level construction of household photovoltaic power inverter with charger demonstration project. An engineering 1000-2000 households, and strive to build 10,000 within three years. Included ten thousand rooftop photovoltaic power generation demonstration projects will enjoy provincial special project grant funds, a project grant 4 yuan / peak watt, two works are tentatively scheduled 3 yuan / Wp.

5kW project as an example of that, removing subsidies Jiangxi $ 4 / W, owner's personal investment as long as two million yuan. If all the micro inverse system, the project annual electricity consumption of approximately 6000 KWh, such as the price of photovoltaic power plants can have one yuan / KWh (PV + desulphurization coal-fired electricity subsidies), then 3.3 years to recover the cost, even under the present desulfurization of coal tariff 0.485 yuan / KWh, it can also be as long as seven years to recover costs.

Yu photovoltaic micro inverse system with its multi-generation, superior security, flexible installed capacity, simplified system design and construction, to facilitate easy post-maintenance, intelligent monitoring and management, and many other advantages, caused a number of column names in Jiangxi Province suppliers concerned and sign cooperation agreements. China Sunergy (Nanjing) and Yu also can actively exchange negotiated strategic partners, merit Yu can use micro-inverse, to jointly promote the Jiangxi and other cities of the civilian system. In addition, Yu photovoltaic micro inverse system has also been a lot of residential users, especially high-end user groups of all ages, which shares the solar home systems installed in new green fashion ideas gradually into the lives of everyone.

Solarbuzz research coordinating unit, said in 2013 China solar power generation balancing systems market is expected to reach total revenue of RMB 19.5 billion (about 3.1 billion U.S. dollars), new solar power installed capacity is expected to more than 7GW, representing growth of 150%, with the the high growth in this market, overseas manufacturers are expected to break the monopoly of domestic suppliers in the past by the Chinese solar power generation balancing system market situation, and the Chinese industry total by opportunities.

In the solar power balance system, the inverter with chargermarket was the largest source of revenue, the estimated 2017 total revenue inverter market will reach 5 billion yuan, of which the rated power greater than 250kW inverter 2013 Q2 has occupied more than 50% proportion; 2013 bracket and track the system's total revenue will likely more than 3 billion yuan, of which more than 90% of revenue comes from fixed stent market, to 2017, is expected to uniaxial and biaxial tracking system operators received 16.9 percent compound annual growth rate.

Solarbuzz analyst Han Qiming said that in the past Chinese balancing system market has been dominated by domestic suppliers, but with the Chinese solar power market revenue in 2017 will grow to 25 billion yuan, the global balance of system vendors competing to enter the Chinese market, the terminal , capitalize on this high-growth investment opportunities.

It is estimated that in 2013 China new solar power installed capacity is expected to more than 7GW, representing growth of 150% in the Northwest where large commercial power plants and power stations driven by public utilities, the ground station in 2013 will continue to dominate China's domestic solar power market , occupying 53% of the market share.

Han Qiming said that in the past Chinese solar gridtiepowerinverteronline market revenue balance system vendors monopolized by the local majority. In fact, the five-year plan also encourages China's domestic manufacturers of solar power system to provide core equipment to make solar energy market over the past few years, China has emerged more than 100 inverter manufacturers, making it the domestic market is very competitive, and overseas firms to enter the Chinese market is also very difficult to end, but with the new domestic and foreign manufacturers to join the Chinese solar power generation balancing system vendors have to be adjusted to cope with rapidly declining market prices, thus breaking the current competition in the market size.

Recently, the China Power Investment Hebei Yixian 20MW photovoltaic power generation project success and power generation, power plants currently running in good condition.

The project is in the Taihang Mountains town of Yixian Pei Wo village, all of the Taihang Mountains unused hills, spanning a total of four or five hill station, multiple construction surface slope angle of 30 degrees or more, the mountain are Holocene alluvial sand eggs gravel, clay containing residual slope gravel, Cambrian limestone marl soil is hard, construction extremely difficult. It is estimated that the average annual power plant to provide clean energy to the grid approximately 25,950,600 kW?? H.

According to reports, the project is the world's largest photovoltaic power plant rocky mountain, which used 20MW inverter http://www.gridtiepowerinverteronline.com/ is new energy company TBEA inverter, which is the company's first large-scale inverter products used in photovoltaic power plants mountain .

According to the latest report released GTMResearch revealed that because of the continuous development of low-cost Asian companies, the European PV inverter manufacturers are finding their profits shrinking. Growing competition also comes from the diversified group.

Overall, changes in global demand will continue to "torture" the PV inverter supplier. Another important factor is that the process of commercialization of advanced technologies, such as modular power electronics (MLPE).

According to the current situation of the PV market weakness and oversupply of products, profit margins will shrink further this year. As the average price of PV inverters, the downward trend will continue. 2012, the price is $ 0.22 per watt, the price is expected to decline further in 2016 to $ 0.14 per watt, which means annual reduction of 10%.

2012 year, the major markets continue to clear channel inventory, shipments in the European market further stagnation. Looking to the future, GTMResearch expects China, Japan and the United States and other major emerging markets, shipments will increase.

The report predicts that by 2014, with the edge of life and death struggle with wind grid tie inverter suppliers out of the market, the market will be integrated inverter. Emerging markets will dominate the 2015-2016 strike, GTM predict these markets shipments will appear soared.

Statistics, China's domestic inverter manufacturers more than one hundred, larger than 5MW at least 50 companies are also. However, the top ten vendors, its shipments accounted for more than 70% market share. Of future market trends and technology trends to grasp, is believed to significantly alter the inverters in the market.

According to IMS Research PV market for emerging Observation 2013 - 2017, the domestic and above will continue to 500kW central inverters for the mainstream. But with the country's support for distributed PV implement centralized ,30-250kW inverter shipments may also be expanded.

The industry generally believe that in Europe, will continue to be small power inverters, mainly in China, places more than 250kW inverter based.

Xie Feng told reporters that the current European market has emerged for multiple MPPT of <= 5kw string inverter needs. The next two to three years, will also be used around the world indoor rooftop PV systems see more storage systems.

Chinese companies Fronius Solar Electronics Division Director Li Yun that because micro-inverter high cost per watt defect exists, the next few years, its market share will be more than the power optimizer.

According to reports, the inverter is different from the assembly of electronic products belong, in order to achieve the desired quality and conversion rates, the internal components selection also appears to be crucial, which is to ensure the stability of the product.

Insiders told reporters that high-quality hardware is important, but decided inverter performance in addition to the hardware, the software side is also particularly important, for example, structural design, algorithm optimization. Thus, with hardware, assembly inverter is not difficult, but the inverter is the core competitiveness of enterprise software side of its strength.

Xie Feng said that as the installed capacity expansion and technological progress, market competition and other factors, the average price is expected to inverter will maintain a sustained downward trend. If the discussion cost of the inverter, the indoor roof systems with terrestrial systems with the inverter in a different proportion. In conjunction with the specific system solutions will know what the project uses an inverter to calculate the PV DC TO ACsystem costs accounted for the proportion.

An inverter manufacturers responsible person told the reporter, PV inverter PV systems as the core power conditioning devices, in general, occupy system cost ratio of 10% -15%.

"Inverters for photovoltaic systems of more reflected in the grid connection terminal for household systems investors (usually the owner himself or community managers) and small commercial power plant investors (usually industrial users), the overall After the system and network power generation efficiency is more important, that the average output of PV systems, trouble-free operation time and the flexibility to adapt to the requirements of grid load shifting ability. "Xie Feng said.