2013年11月26日星期二

PV inverter cost of the war Insider Probe

PV industry has come winter , the various manufacturers of photovoltaic industry chain struggled desperately to cut costs in order to be more ruthless price customers will be required , as the PV inverter industry chain most technical content of days Jiaozi - PV grid-connected inverter , also spared , 500KW grid inverter price, from today's 0.5 yuan per watt in 2009 dropped to 2.0 yuan per watt inverter manufacturers in lower profits at the same time , alternative photovoltaic inverter also more expensive components or even cancel conducted to ensure that the whole of the price drop.

However, due to the special status of PVinverters in photovoltaic power plants , some inverter manufacturers cost reduction measures have seriously jeopardized the entire industry. Because in photovoltaic power plants , the cost of the inverter is less than 10 % loss accounts for more than 80 % to 90% power generation efficiency of photovoltaic power plants controlled by the inverter, inverter assessment methods can not rely on the price , the more important the inverter is to look at the actual generation capacity.

Now the domestic production of inverters up to 300 manufacturers , ultimately left 10 influential manufacturers will come home in the end what companies will ultimately survive , which companies will be the first out , I think: just keep going back to the product quality route, sense of social responsibility , moral bottom line, companies have continued to improve capacity is the ultimate winner. I engaged in photovoltaic inverter design more than five years , from the perspective of a systems engineer , to tell you some bad Revealed manufacturers reduce costs insider.

MPPT efficiency mystery , in the photovoltaic inverter specifications book, most manufacturers have MPPT efficiency of this indicator, some marked as 99% , some even labeled as 99.9%, MPPT efficiency is currently no reliable instrument to measure , do not require certification measurements , in fact , MPPT efficiency is the most critical factor in the decision PV off grid inverter generation , far more than the importance of the efficiency of the PV inverter itself , domestic PV inverters are under the same conditions as Comparative generating capacity , may differ up to 20% of this difference is mainly due to MPPT efficiency.


There MPPT students can first understand the basic principles and implementation methods Baidu MPPT 's . I mainly to everyone Revealed MPPT efficiency calculation methods and sources , MPPT efficiency equal hardware efficiency multiplied by the efficiency of software and hardware efficiency mainly by the accuracy of the current sensor to determine the accuracy of the sampling circuit , the software efficiency is mainly determined by the sampling frequency , there are many ways to achieve MPPT , but no matter which method is used , the first to measure the components of the power of change, and then react to changes . This is one of the most critical components is the current sensor , its accuracy and linearity errors will directly determine the efficiency of the hardware , software and sampling frequency accuracy by hardware also determined .

Pluralistic competition, the unique advantages of mainstream inverter manufacturers

Overall, the inverter market barriers to entry are not high , a greater degree of difficulty in improving conversion efficiency and reliability. As the PV inverter applications is always in demand and competition dynamic process , which requires continuous inverter manufacturers research and innovation , which is to protect the core competitiveness of the inverter and critical market needs are met.

With the development of technology and continuously updated market demand, PV inverters in the actual performance and functional design , it is also the beginning of new applications continue to face all kinds of challenges , in addition to achieving the inverter AC-DCconversion , should also have other features , such as ease of maintenance expansion, improved monitoring and management , and so on . Therefore , to meet the diverse requirements of the product and improve the overall performance of the product is particularly important , especially in the conversion efficiency , reliability, system integration capabilities , low voltage ride through other aspects but also to have excellent performance. Therefore, only focus on technological innovation , with strong R & D capabilities of mainstream equipment manufacturers to meet all application requirements of photovoltaic power generation.

In the current domestic PV inverter market, Emerson Network Power in the photovoltaic field with its deep engineering experience and strong R & D strength , becoming the wind grid tie inverter market leader. All along, Emerson Network Power PV inverter market as a major supplier , has always been committed to providing high performance products and solutions for the photovoltaic industry , with strong brand appeal in the PV field .

Its best to launch a multi- series of high -quality , high-performance inverter products , high-end technology to continuously improve and refresh the overall efficiency of photovoltaic inverter system . For example , Smartshine series PV grid-connected inverter system uses a modular architecture , a unique product applications and intelligent sleep technology MPPT technology, with hot-swappable , high power density , intelligent monitoring and other features, and the project application passed the analog circuit test site , low frequency disturbance test through trial and three and network performance testing.

In addition , the latest version of "SmartShine ™ SSO series of prefabricated PV grid station " system that uses a typical one-stop integrated design . The system uses a 1MW unit integrated design , the internal integration of the inverter , the DC power distribution cabinets, data collection boxes, ventilation systems, auxiliary power systems, environmental monitoring systems , ensuring high reliability, high conversion efficiency, facilitate the photovoltaic power plant the rapid construction .


With the domestic PV market will soon start a large-scale PV inverter market increasingly broad application , while the function of the product design, performance, play also brings more challenges. In this regard , the need to Emerson Network Power Inverter represented mainstream manufacturers to improve conversion efficiency, increase reliability , reduce costs, improve flexibility premise , through innovation, advanced technology, products and solutions for the photovoltaic power generation to provide superior application value , to promote a greater contribution to the development of photovoltaic industry an important force .

2013年11月25日星期一

PV inverter market capacity soared Nuggets billion

Institutional investors in the market this week, a callback is not calm . There are more than just small board stocks body seats coming out, the overall market pullback in the operation of its opportunity to buy the idea emerged. Charts show the small plates were net buyers of stocks yesterday Kstar institutions , and its share price rose 7.60 percent .

Shenzhen Stock Exchange trading public information display , yesterday Kstar four agencies are buying seats , for a total net buying 44.51 million yuan , accounting for 42.62% of the total turnover of the day ; being an agency to sell seats sold a net $ 1.5 million accounting for 1.44% of total turnover day . Although the Shanghai Composite Index fell 1.37% yesterday , but Kstar contrarian rose 7.60 percent .

KSTAR is China's leading uninterruptible power supply (UPS) provider , is mainly engaged in supporting the UPS and VRLA battery research and development, production, sales and support services. Its UPS products covering medium and small power levels , and has been certified by McIntyre , FCC certification and CE certification. Company's 2010 sales reached 667 million yuan , the products have been exported to over 60 countries and regions, in local companies, sales ranked first.

Meanwhile, the company is one of the UPS industry, the industry standard-setter, a number of new standards for the industry to participate in the preparation and development work , with some industry say. Kstar first half operating income of 426,318,700 yuan , an increase of 60.60% , net profit of 37.7517 million yuan , an increase of 4.73% , profit growth is much lower than revenue growth . Although the gross profit margin decreased from 31.15% in mid-2010 to mid-2011 's 23.67 percent . But the agency believes that in the second half , with the adjustment of product structure and the company UPS callback raw material prices , gross margin is expected to steadily.

Meanwhile, the agency believes the huge potential of the company PV inverter performance . PV inverters in the secondhalf is expected to start contributing profits. The company currently has production 1.5K-500K full range of solar inverter products , the report period, the Company has received orders for 45 MW of inverter products . Half of PV inverters for the company contribution to operating income of 3,917,800 yuan , gross margin reached 38.77% , net profit -342.04 million. With the expansion of production scale, promising gross margin is expected to reach more than 50% . Next two years, the domestic photovoltaic inverter market capacity of about 15 million.


With the lower cost of electricity is expected to double in 2012 after the new , and the proportion is expected to further grid rapid promotion, PV inverter http://www.gridtiepowerinverteronline.com/ capacity is expected to reach 30-50 billion. Agency analysts believe that if the company can occupy the domestic market share of 10% , not considering exporting , the company is expected to receive 3-5 million in revenue in this area , a huge potential for PV inverter performance .

Japan successfully developed the world's smallest PV inverters

Kyodo News, Japan's New Energy and Industrial Technology Development Organization (NEDO) 6 announced by industry, government, academia, the formation of joint technology research organization, "the next generation of power electronics research and development institutions," has successfully developed the world's smallest inverter. Compared with the general micro grid tie inverter  its size is only about twenty fifth, reduced to about 500 cubic centimeters. The outcome is expected to be applied to future electric cars and railways.

The inverter is a DC power into AC power apparatus, since the rotation of the motor efficiency can be improved, and thus commonly used in the field of home appliances, and the access procedure of the solar DC power generated in the AC power lines, or the off grid inverter is also not missing devices.

The development of inverters silicon carbon compound material as a semiconductor element, instead of conventional silicon. Power conversion efficiency has been improved, in order to achieve miniaturization. Experiment, the inverter output power continuously driven the success of up to 15 kW motor, equivalent to more than 15 times the power of home air conditioning.


2013年11月24日星期日

PV inverter factory Enphase Micro announced record quarterly revenue

Enphase Energy (NASDAQ: ENPH) quoted recently launched its fourth-generation micro-inverters and expand its commercial roofs as quarterly earnings release this week the factors behind the record .

The micro-inverter market leader reported 2013 third quarter revenue reached a record $ 62 million from the previous quarter increased by 7 %. The company also reported a record non- GAAP gross margin of 28.3 %, in line to achieve a gross margin of 30-35 % of the long-term goal , to get a lower cost and the launch of the fourth generation"M250" micro-inverters support.

Enphase said it shipped about 60,000 a M250, accounting for 15% of total third -quarter shipments , total shipments 426,000 micro-inverter , the equivalent of 94MW.

Enphase CEO Paul Nahi said: " In the third quarter, we shipped about 60,000 a M250, accounting for 15 % of the total volume of the quarter 's transition to our new micro inverter will continue over the next few quarters . we expect the fourth generation will account for the fourth quarter of 2013 a total of about 20-30% volume .

Management to discuss the financial results conference call that , M250 rally will continue , expect 20-30 % in the fourth quarter of 2013 accounted for shipments . Currently , Enphase M250 is only available to the U.S. market , plans to launch the product later to Europe and Australia in 2014 .
According to market research firm IHS recent report , micro-inverter shipments are expected to reach 500MW in 2013 , but in 2017 will increase to 2.1GW.

Importantly, projected to 2017 Global on grid inverter shipments will support nearly one-third of the commercial PV system installation projects , compared to just 9 percent in 2012 . Enphase M250 series also targeting the commercial rooftop market , the sector and the recent completion of several landmark projects.


Management indicated that increased sales and profits and a stable operating expenses for the quarter to further reduce Enphase support operations and net loss . The company reported an operating loss for the quarter was $ 2.9 million , a net loss of $ 3.7 million , indicating that the company may continue to sell to make a profit , and profit improvement by 2014 , achieve balance mode , quarterly revenue 80 million U.S. dollars, gross margin was 30%.

Henan Shen Qiu's first successful grid photovoltaic power plants in rural areas

Autumn, hi breeze , October is the harvest season . Mr. Han , who lives in Henan Shen Qiu success in their own roof-mounted photovoltaic systems 2kWp grid , which has become the first local PV project . The project to take self-occupied , more than power online mode, which not only saves a fortune to Mr. Han home electricity costs, but can also use up the power delivered to the national grid and sold to the grid company , brought him a additional small income.

        The entire solar power system capacity is 2kWp, the eight polycrystalline silicon photovoltaic components , 2kW solar inverters is provided by Guangzhou Crystal Electric . From purchase to installation, three crystal electrical technicians install the machine configuration selection to train services .

        Currently three crystal electrical household -type photovoltaic inverter has been widely used in various regions of Henan , Jiaozuo such , Shangqiu, Pingdingshan and Zhoukou other places, won the praise of users .
QQ screenshot 20131108141048

        Crystal Electric as to the quality and service as the core value of the PV inverter equipment providers, has been committed to research and development of photovoltaic inverter family and commercial applications , now has Sununo single MPP series single-phase grid-connected photovoltaic inverter 1.5 K/2K/3KB/4KB, dual MPP single phase 3KA/4KA/5K, Suntrio MPP series dual -phase grid-connected photovoltaic solar grid tie inverter 6K/8K/10K/12K/15K/17K/20K, single-phase and from net machine Sunbrid3000 other popular models.


Crystal Electric in just one year to complete all of the international certification, and become the first company to launch dual MPP tracking , allowing the inverter to achieve the highest conversion efficiency, while new flagship product tested by the authority of the following dual MPPT global 6K conversion efficiency ranking . System monitoring, all three crystal inverters offer WIFI RJ45 and communication interfaces. Users registered in the official website to see the station operation via the web , iPhone and Andriod phones , truly zero for the entire cost of photovoltaic power plants for remote monitoring .

2013年11月21日星期四

Nantong's first photovoltaic power generation companies significant social benefits

Beijing November 7 electricity early November , riding rainy weather, Haimen city's power company workers are Wuyang Chemical rooftop photovoltaic power generation equipment to troubleshoot security problems. According to reports, five Yang Chemical Co., Ltd. is the first use of Nantong PV electricity customers , the factory eight roof-mounted solar panels of the 4796 , with a total installed capacity of 380 KWp, photovoltaic inverter incorporated through two factory 400V bus , achieve energy consumption in situ . July 2012 by Jiangsu Provincial Power Company and the network license .

In 2010, the enterprises to actively respond to the call of the local government , the implementation of enterprise into the park project . Temporary power infrastructure in the process of the process, the company was informed that the company Haimen power plant to take all the flat design, the feel is very suitable for the construction of photovoltaic power generation projects, immediately organized professionals and corporate executives were the butt , has been recognized. July 2011 , the company's efforts in Haimen power driven , the company officially approved photovoltaic off grid inverter power generation projects .

"This photovoltaic project put into operation , the annual generating capacity of more than 50 million kwh, not only environmentally friendly , but also for our five foreign company to save a lot of money ." Speaking of this , Li Yu -powered grateful for was palpable. According to Li Yu introduced their companies invest a total 5.8 million yuan PV projects , the State subsidize more than 400 million yuan, will soon recover costs.


"Photovoltaic power generation enterprises not only a self- self- consumption, the Internet can also be surplus electricity for energy conservation and saving all have a positive role in promoting and demonstration utility" , Haimen Development Planning Department is responsible for the power company who was with Tom , "said I believe haimen region other companies will soon follow the example of this win-win initiative . "

Many measures to promote the development of photovoltaic industry in Qinghai Province

Qinghai News Network Recently, the reporter learned from the Qinghai Province Economic and Trade Commission , the current momentum of rapid development of the domestic PV market , Qinghai will conscientiously implement the State Council "to promote the healthy development of photovoltaic industry a number of opinions " , to build the country's major PV manufacturing industry base, largest photovoltaic power plant , and further improve the industrial chain, to achieve downstream docking, accelerate the development of distributed generation enterprise applications market , from the following aspects and strive to improve the development of photovoltaic manufacturing quality and efficiency .

Build photovoltaic complete industrial system. The photovoltaic array brackets, controllers , inverters  gridtiepowerinverteronline, photovoltaic systems such as power transmission and distribution equipment and components , focusing on the introduction and cultivation of photovoltaic supporting enterprises , improve the photovoltaic industrial chain , the formation of the cluster effect .

Accelerating technological advances and equipment upgrading . In order to improve the photoelectric conversion efficiency as the core, increase R & D efforts to reduce energy consumption, reduce pollutant emissions. Gradually increase the polycrystalline silicon, thin film batteries with key production equipment localization rate , reduce business costs .

In the photovoltaic industry upstream and downstream integration , focusing on the implementation of mergers and acquisitions. Through asset acquisition , the transfer agreement , the joint reorganization , holding shares and other forms of implementing the merger and reorganization , optimization of land , capital, technology , personnel and other production factors , innovation management, cultivate a vertically integrated industry chain crystalline silicon PV manufacturers , complementary advantages , the depth of integration.

Construction of photovoltaic plants energy storage battery application demonstration project to promote energy storage batteries in photovoltaic power plant applications, enhanced photovoltaic power system reliability and stability .


Construction provincial photovoltaic dc ac inverter products and systems testing center , photovoltaic product testing public service platform , and strive to become a national photovoltaic products or systems field-testing experiment. Active promotion distributed photovoltaic systems, guide enterprises to use factory roof , and the province of photovoltaic manufacturing enterprises, cooperative enterprises PV power plant construction or constructed by means of large-scale distributed photovoltaic power generation system.

2013年11月20日星期三

Sun power PV industry inflection point appeared reproduction capacity expansion

Vigorously support the PV industry at the national context, the PV industry inflection point appeared invest 200 million yuan Sunshine Power You Yu set up a "megawatt photovoltaic inverter system project" the company, the expansion of production capacity. November 12 evening announcement said the sun power and Xining Economic and Technological Development Zone Management Committee Dongchuan Industrial Park signed a cooperation agreement, the company intends to invest in the establishment of "megawatt photovoltaic inverter system project" company, engaged in the photovoltaic industry inverter system products R & D, production, sales, project plans a total investment of 200 million yuan.

Statistics show that the sun's corebusiness is solar power inverter, wind inverter R & D and sales, is the earliest in the photovoltaic inverter R & D and production enterprises, leading products solar PV inverter market share for many years to stable domestic market for the first one, the current domestic large-scale PV projects basically have the company's product applications.

November 8, Yangquan City, Shanxi Yuxian Company and the People's Government in the town village Yuxian cattle town after another 100MW PV power plant investment in the project signed a construction contract; October 24, the company intends to raise funds 180,000,000 yuan ultra- Sunshine Power Investment Co., Ltd. was established in order to be invested holding shares or distributed photovoltaic power plants, concentrated photovoltaic power plants.

Sun power, said the investment in factories in Xining, the company will further close to the market, strengthen customer relationships, which is expected to increase its market share in the northwest, and radiation around the market, and thus the company's future performance has some positive affected.

Wide license and Hang Seng said that the recent introduction of intensive photovoltaic industry support policies and photovoltaic corporate financial data is to promote an improvement in the PV sector rose a major catalytic factor. Expected in the fourth quarter, the strong domestic market demand will further stimulate mounted grab industry chain shipments, while the product price formation, thereby improving photovoltaic http://www.gridtiepowerinverteronline.com/ manufacturing enterprise profitability and cash flow.

A brokerage researcher said that the current sun power need to be addressed primarily funding, greater investment in photovoltaic power station construction, 10MW power plant need to invest 90 million yuan or so, 30% own capital is 27 million yuan.


Sun power three quarterly show, the company achieved operating income of the first three quarters of 1.257 billion yuan, an increase of 112.63%; attributable to shareholders of listed companies net profit of 113 million yuan, an increase of 82.16%.

Sunshine Power: Breakthrough investment agreement signed in Qinghai Power Market.

Inverter project investment and construction, power station disguised open Qinghai market. The scale of investment totaled 200 million yuan, in two phases, each of 500MW capacity, is expected to commence production in late 2014. Meanwhile, according to business development, the company will set up power plant company in Xining, Industrial Park Administrative Committee promised five years from 2014 onwards for the company with certain scale photovoltaic power plants indicators, and other enterprises in Qinghai Province will give priority to the construction of photovoltaic power plants using the company products .

We believe that through this investment, the company "three birds with one stone": (1) With the domestic market, quick start, the company continued to grow inverter shipments, capacity is tight, the project will expand the company's production capacity inverter; ( 2) Cooperation Agreement in relation to the terms of preferred products will promote the company's products sold in Qinghai;

(3) most importantly, the company as an opportunity to enter the market Qinghai station. Illumination sufficient resources in Qinghai Haixi class tariff area, the other for Class regions, while Qinghai photovoltaic power plants in general can get local Development and Reform Commission approved the construction, investment facilitation and income levels are higher.

Farm business layout maturing, the latter will gradually enter the harvest period. Since 2012 the company has carried out farm business, farm business gradually improved layout: (a) focus on the layout of large power stations in Gansu, Qinghai and other western regions, EPC and BT business models go hand in hand; (2) actively explore eastern markets, focusing on breakthroughs in Anhui, Shandong and other areas with local subsidies. On one hand, reserves distributed space resources, the construction of large power plant projects, and change of Party B, to ensure plant gains;

On the other hand, with the power plant investment companies to enter the field of distributed EPC. Currently, the company announced Anhui Lutiao exceed 400MW, Gansu Province Lutiao 79MW (next year is expected to add over 100MW), Shandong Province Lutiao 20MW or more, the scale of construction is expected in 2014, more than 200MW, and gradually into the harvest period.

Determine the high-growth domestic market remained unchanged "recommended" rating. Domestic subsidies policy rules after landing photovoltaic power plant installed capacity will expand rapidly, is expected to domestic PV installed capacity 2013-2015 were 8GW, 11GW, 15GW, leading the company as an solar inverters will clearly benefit;


Meanwhile, the company carried out large-scale power plants and distributed business are advancing rapidly and continue to receive flagging resources and cooperation agreement is expected to drive the company's power plant business continued to exceed expectations. We are optimistic about the prospects for power stations and distributed business, but that with the decline in the cost inverter company, also has a large manufacturing business profits flexibility. 2013-2014 the company expects EPS were 0.55,0.89 yuan, corresponding to PE were 59,37 times, maintain the "recommended" rating

2013年11月19日星期二

Scale PV installed capacity in 2017 to promote micro-inverter output quadrupled

Micro-inverter is now an important component of PV plants , micro-inverter to the panel level to achieve maximum power point tracking , central inverter has advantages beyond . So that each module can be achieved by optimizing the output power , the overall maximum output power . Now, with the steady growth of the global PV installed capacity , the industry that in 2017 the market will quadruple.

Before 2005, the mere presence of new energy industry in the laboratory and academic journals , from business applications within the foreseeable future , the government projects are almost no direct subsidies , venture capital is only several hundred million dollars annually . Today, the rising demand for energy and environmental pressures , prompting the world have invested in new energy development and a lot of effort . Now governments subsidies to further promote the development of new energy .

United States each year to provide new energy industry subsidies amounted to $ 90 billion , equivalent to 50 years of tax exemption to these companies . In contrast, the traditional energy industry only received $ 4 billion in subsidies. The photovoltaic feed-in tariff , for example, in Europe and North America 's leading solar energy are clearly defined national solar feed-in tariff policies to encourage solar power technology research and development , project development and wide application .

At the same time , the total installed capacity of solar energy rising relevance for many industries, such as polycrystalline silicon, micro- inverters have a positive impact , includingmicro-inverter output value of the industry is expected to quadruple in 2017 .
IEA PV installed capacity is expected to reach 230GW by 2017 according to the International Energy Agency (IEA) latest trends in the renewable energy market analysis and forecast in 2017 , the photovoltaic industry is expected to achieve strong growth .

IEA projections , the cumulative installed capacity of the grid from 2011 to 2012 in the 70GW 91GW, 2013 years of 115GW, 2014 years of 140GW, 2015 years of 167GW and 197GW in 2016 and 2017 of 230GW. The IEA also said that with the increase in installed capacity , the annual average level of PV capacity will reach 35 terawatt hour (TWh).


In all of the available solar wind inverter energy technology, the fastest growth rate forecast photovoltaic . The IEA said that , from the overall perspective, to 2017 , including concentrating solar power (CSP) , including solar power renewable energy will account for 4.9% of the total .

Dunhuang PV achieve substantial leap from bonsai to landscape

As the nation's largest photovoltaic power generation project - Dunhuang 10 MW photovoltaic power generation demonstration projects landed in Dunhuang Dunhuang City, accelerate the pace of clean energy development . To 2013 , stabling Dunhuang PV project has reached 486 megawatts, will be built by 2015, the total size of one million kilowatts of the nation's largest photovoltaic power plants , photovoltaic power generation from bonsai to achieve a significant leap landscape .

Dunhuang City, light and heat resources, rich in wind resources , not only the domestic solar resource-rich region class , it is approved by the state " above the level of one million kilowatts of solar power demonstration base" and "new energy model city ." This reporter has learned , in the construction of photovoltaic DC TO AC industrial park located in Dunhuang City qilizhen west of State Road 215 north of the line of the Gobi Desert , planning area of ​​254 square kilometers , planning installed capacity of 5.5 million kilowatts . The park has been assigned photoelectric 23 .

As of October this year, the city's total access Gansu Provincial Development and Reform Commission approved the 1091 MW photovoltaic project Lutiao , network projects have been completed and 163 MW, annual generation capacity of 270 million kwh . And supporting the development of clean energy grid construction is steadily advancing , Sha Chau upgraded to 750 kV switching station substation, Ming Shan 110 kV step standing photoelectric industrial park was built. Invested by the State Grid Corporation of national key projects in Xinjiang and the Northwest Passage Project main network interconnection second 750 kV substation sand states have achieved live operation.


Dunhuang City Development and Reform Commission , according to the relevant person in charge, according to the " resources for equipment ," the idea , the city has introduced a Shiqiang 20,000 tons PV mounting process , CSIC 400 MW wind turbine manufacturing , to a high of 500 MW dc ac converter manufacturing and other projects. This will speed up the development and utilization of renewable energy , and promote sustainable economic development in Dunhuang explore a new path.

2013年11月18日星期一

New Energy Knowledge: Classification of PV inverters

PV inverters are used in the field of solar photovoltaic inverter dedicated . It will direct current generated by solar cells through the power electronic conversion technology converts directly into the grid , load sharing power. Photovoltaic system is indispensable core components.

The core of the inverter unit switching the inverter circuit , referred to as the inverter circuit . The circuit through the power electronic switch turn-on and turn-off to complete inverter function. For inverter classified in many ways, for example : According to the inverter output AC voltage phase can be divided into single-phase and three-phase inverter inverter ; inverter used according to different types of semiconductor devices , but also divided transistor inverter, thyristor inverters and turn-off thyristor inverters .

According to the principle of the invertercircuit different , can be divided into self-oscillating inverter, step wave superimposed pulse width modulation inverter and inverter and so on. Depending on the application and network systems , or in off-grid systems can be divided into grid-connected inverter and off-grid inverter.

Centralized Inverter: Inverter technology is the focus of a number of parallel PV strings are connected to the same central inverters DC input terminal , the general power of the IGB T three-phase power modules, power smaller using field-effect transistors , while the DSP switch controller to improve the quality of the produced electricity , making it very close to the sine wave current , generally used for large-scale photovoltaic power plants (> 10kW) system.

String inverters : string inverter is based on a modular concept based on each PV string (1-5kW) through an inverter , the DC side has a maximum peak power tracking , parallel to the AC side grid . Many large-scale photovoltaic power plants using string inverters .


Micro Inverter: in the micro- on grid inverter photovoltaic system , solar panels are access each one a micro inverter, when the solar panels can not have a good job , only this one will be affected, while other photovoltaic panels will be run in the best working condition , making the overall system more efficient, generating a greater amount .

Micro-inverter "micro price"

Report noted that although 2013 is likely to be micro-inverter shipments topped 500MW year, but on competition and prices , this year for the supplier will still be a challenging year . Many suppliers have on emerging markets , " eyeing " , have launched a new product , which contains two large PV inverter manufacturer : SMA and Power-One. IHS said that in 2013 , the inverter market competition battle smoke, micro-inverter prices are likely to fall 16%.

However , IHS added: "Although the 2013 price drop of double-digit percentage , but shipments are still expected to drive strong growth in micro-inverter market growth in total revenue over $ 250 million , but the next few years , micro- inverter prices are likely downward trend is expected in 2017 global micro-inverter sector total revenues will reach $ 700 million . "

Report, as a leading global suppliermicro-inverters , Enphase Energy last year, occupying the largest U.S. residential PV market share. However, as other micro-inverter suppliers rising power , the enterprises are facing increasingly fierce competition . Based on this , Enphase and other vendors have looked "targeting " of new markets and actively promote micro-inverter systems in the commercial sector development , to further expand its market share.

So far , Enphase implementation strategy has shown signs of success . Recently, the company announced that the Canadian Vine Fresh Produce Ltd. 's Installed capacity of 2.3 MW solar project supply micro- inverter. According to the report predicts that in 2017 , one-third of global shipments of micro-inverter system will be located in the commercial sector , while in 2012 this figure was only 9%. In addition, in 2017 , most of the micro- inverter is between 10-100kW scale used by the system .

In 2012, the United States accounted for the global micro-inverter shipments 72%. However , IHS forecasts , given the micro-inverter sector market focus gradually to new markets in Europe and Asia such transfer , in 2017 , the U.S. market share of global proportion will fall to 50%.


According to IHS forecasts, in addition to the U.S. market, micro-inverters in the UK, France, Japan and Australia, the success of these four new markets, the most significant . If the micro-inverter with charger suppliers to quickly enter these new markets and overcome their unique challenges , there are still opportunities to reap lucrative new markets for the hidden market opportunities .

2013年11月17日星期日

FMCC SOL: improved EMC performance inverter system

SCHURTER announced today , FMCC SOL has launched a 3-phase AC applications for new products, the rated voltage 520VAC or 760VAC, rated current 150 A to 2500 A, M10 bolts or copper connections , UL certification No. E72928

 This new high-performance filters FMCC SOL series for the rated current of 150A to 2500A is ideal for increasing performance superior specifications growing demand for inverter systems . This series of products are UL certified for 520VAC or 760VAC voltage , can be used for photovoltaic, wind power system, power inverter with charger  etc. All high-performance systems , can also be used for industrial and electric vehicle fast charging stations. Despite its high performance , the products of the design is compact, light weight .

    In the next decade or even longer range, the renewable energy market will continue to maintain strong growth momentum. Given the functional and volume more powerful systems have an urgent need to optimize energy efficiency , so the industry 's demand for high-performance inverter and day surge. With MPPT ( Maximum Power Point Tracking ) function of the modern inverter will face a dual EMC interference: the grid on the AC side and DC side of photovoltaic panels . On the DC side , FMER SOL series of filters for the rated current of 25A to 2300A , DC interference can be a good defense ;


AC measurements , we launched this applies to 150A to 2500A 3 -phase alternating current of the new FMCC SOL high current series , making the application functionality greatly enhanced . With AC-DC sine wave inverter filter more to meet current EMC standards , FMCC SOL filter series has a higher rated current through +50 ° C and +40 ° C ambient temperature UL certification, its voltage up to 760VAC, IT systems can easily cope with the application requirements.

The global leader in high efficiency inverter efficiency


PV distributed generation is a new , and has broad prospects for development of power generation and energy utilization methods , however, distributed generation on how to maximize the amount of solar power , how to ensure the security and also put forward strict requirements , this process PV inverters the functionality and stability is also extremely critical .

Participate in the High-Tech Fair in Shenzhen Guruiwate New Energy Co., Ltd. has just won the "TOP5 China 's most competitive photovoltaic inverter company" title, the company called the industry in recent years, the development of the legend. The company was founded in March 2010 , a short time has grown into the largest photovoltaic grid connected inverter exporters, the nation's largest provider of distributed photovoltaic inverters .

Guruiwate independent research and development production Growatt10k-20k inverter using a number of cutting-edge technology industries , the conversion efficiency comparable with SMA models, functional stability and technical innovation have reached on the level of the world's leading . According to Intertek laboratories in Germany officially announced the test results , Guruiwate new efficient modified sine wave inverter Growatt20000 HE machine conversion efficiency up to 99% , into the global leading level. Industry sources, the current models in the same paragraph can only achieve 99% efficiency and Growatt two SMA , while Growatt can do a wider input voltage range. The model has been successively applied to Romania, Belgium, Greece, Australia, and China's domestic numerous distributed power station project.

Guruiwate release of high-efficiency models and national planning of the " distributed generation " policy will coincide. Industry insiders explained that in a distributed power plant design and construction of photovoltaic panels taken into account during orientation, shelter, electricity and other issues , 20KW and below models will get more chance to show , especially when the subsidy policy oriented towards " generating capacity " direction close, similar to Guruiwate company released a higher conversion efficiency of the inverter will be distributed power station design undisputed best choice.


2013年11月14日星期四

Twelfth Five-Year period, China PV Inverter Industry Development Analysis

Recently, Asia's largest manufacturer of sun power inverter Inc. announced that its new inverter SG30KTL in the German market gained another successful application . It is reported that the announced projects are located in Berlin, Germany, near the famous Athos Solar PV companies , with total installed capacity of 8.3MW.

Inverter power regulator , also known under the inverter PV system in use can be divided into independent mode power supplies and grid with two kinds . According to the waveform modulation mode can be divided into square wave inverter , step wave inverter , sine waveinverter and modular three-phase inverter . For grid systems for inverter transformer can be divided according to whether the inverter transformer and transformerless inverters . There are many types of the inverter , so the selected machine type and size of the need of special attention. Especially in the solar power system, inverter efficiency is to determine the size of solar capacity and an important factor in battery capacity .

In China's " Eleventh Five-Year " period, such as photovoltaic inverters and other equipment in various stages of R & D and innovation , less vulnerable to policy concerns . "Twelve Five" period, the PV market trend is towards the development of the whole industry chain , crystalline silicon , a component other than the equipment will be subject to further market and policy concerns , the NDRC will be included in the Catalogue inverter encouraged , it is that a trend reflected.

2010 , China's photovoltaic capacity of 500 megawatts , the inverter market is about 500 million yuan . June 2011 , "five" significant domestic photovoltaic installed capacity target upwards 10GW, compared with the previously announced target doubled. Assuming all of these installed and networks, according to one yuan / watt cost , is estimated to 2015 , domestic inverter market will reach 10 billion yuan .

Currently international photovoltaic inverter industry leader in the German Asma (SMA) companies, technology in the industry vertices. Compare the strength of the domestic grid inverter companies: Hefei Sunlight Power Supply , three crystal new energy, national grid XJ Group Corporation , CIMIC , Samil Power , Beijing Corona , Esso new energy, Xi'an love , etc. ; while off-grid inverter technology is relatively mature, has a number of technologically leading companies .


With the PV inverter industry competition intensified , large-scale PV inverters merger integration between enterprises and capital operation is becoming more frequent , excellent domestic PV sine wave inverter manufacturers increasing emphasis on industry market research , especially for enterprises environment for the development trends and customer needs in-depth study . Because of this, a large number of excellent domestic photovoltaic inverter brand has risen rapidly, becoming the PV inverter industry leader !

Domestic enterprises to enter the U.S. market, the inverter

Recently, the reporter learned from Samil Power Co., Ltd. ( hereinafter referred to as " Samil Power " ) was informed that its U.S. models SolarRiver Series 3kw-10kw PV grid-connected inverter , the column names in the Year of the Dragon U.S. CEC list successfully , wherein the test efficiency of 97.5% is much higher than the domestic power inverter , marking Samil new energy and new products in the U.S. market and channel development on a solid step forward .

Samil Power certification department said , CEC certified by the American California Energy Commission 's Appliance Efficiency Regulations implementing the regulations , must be performed by qualified laboratories appropriate regulations or standards by the United States for testing to prove that it meets the requirements . CEC efficiency which is very strict assessment criteria , which were taken three input DC voltage points, which are the three points of the inverter MPPT voltage windowof the minimum value, average and maximum values, and then the three point and then were the weighted average method to calculate the efficiency.

Samil Power CEC column name list of the United States there are more than 20 kinds of machines , including efficiency up to 97.5% , from an efficiency point of view is far ahead of the domestic power inverter , and the selection of components are used in international top brand suppliers , to ensure the quality and performance of the various parts . This series has a transformerless design, a wide range of MPPT, small size , simple installation and so on. Samil Power relevant responsible person said , Samil Power models have been developed for the United States to obtain the authority of the CSA, in the U.S. state unimpeded in a distributed power plant project also has great competitiveness and advantage has been in many distributed power plant revealed.

Reporters learned that the side in recent years , the U.S. PV market benefited from the federal government and the states to implement a diversified and innovative policies to support the rapid growth of the PV market analysis of the U.S. policy , which does not use the more popular country -style FIT subsidy model , but by investing in direct subsidies , solar investment tax credits, accelerated depreciation deduction and green electricity certificate (REC) and a series of policy support, compared with the FIT , which is more conducive to the development of distributed PV .

According to GTM forecasts, U.S. third-quarter U.S. solar PV market to add 684MW, 2012 in the fourth quarter will be installed 1.2GW of PV systems , which would make the United States in 2012 annual installed capacity increased to 3.2GW. 2013 U.S. PV installed capacity is expected to reach 3.9GW, while in 2016 this figure will reach 8GW.

U.S. experts believe that the growth of the local market is the fundamental reason PV cost reduction, of course, the rise of the United States third-party leasing business also played a crucial role, but the cost is still the primary cause . United States launched the China PV dc to ac power inverter "double reverse" , the local component prices have not increased , but continued to fall , which for the 2013 U.S. market rose again the foundation.


2013年11月13日星期三

China's first megawatt photovoltaic inverter R & D platform to be built

Recently, the State Development and Reform Commission issued the 2013 strategic emerging industries ( energy ) the first batch of the central budget for investment projects , China's first megawatt photovoltaic inverter R & D platform to get the special funds to support the project , the construction will be completed by the end of this year .

The project consists of the construction of Hubei DAY Electric Co. , with a total investment of more than 8570 yuan. Megawatt photovoltaic inverter R & D platform through centralized controlsoftware to meet the remote PC control of various types of test equipment to achieve high-power inverter type testing, factory test , research and development test, measurement accuracy of identification level . Project after construction , an annual 400 -megawatt power sets inverter production, assembly, testing capabilities.

The platform has integrated centralized control and decentralized control advantages can be achieved frequent long test , but also has perfect safety protection, and deal with a variety of non-normal states and events. Products of the project was November 2012 through science and technology achievement appraisal by experts determined that " reached the international advanced level ."

In the United Nations Development Programme in 2010 released a report that China's future development in the green economy, low-carbon economy in the process , at least 60 key technologies , of which 42 have not mastered , these technologies or patents, are vested in foreign hands. This means that if China is to develop a low-carbon economy, green economy , we need to pay a heavy price to buy the technology or patents.


High-power photovoltaic inverter http://www.gridtiepowerinverteronline.com/ technology is the core technology of photovoltaic power generation system . Megawatt photovoltaic inverter R & D platform after completion of the project , for the increase of new energy technology development and innovation, to break the foreign monopoly , import substitution , and enhancing our use of technology and new energy technology and equipment level , is of great significance .

Huizhou day energy projects tailored for domestic rooftop PV inverter

When the inverter manufacturers at home and abroad into China for business and medium-sized power plant market price when shopping , day energy policy-makers to determine the domestic market will be like Germany and other developed countries, in order to develop civilian rooftop PV projects mainly in the domestic market ; and relying on the Corporation 's power thirty years R & D experience and from 2005 began tostudy household photovoltaic inverter technology, painstaking research and development in the Chinese domestic market for PV inverters , after years of exploration , the day energy TSA series has finally breeds success .

More than 97% conversion efficiency is greatly improved the city's rooftops Cuntucunjin efficient utilization of solar energy ; stylish appearance, easy installation and suitable for mobile structure designed to allow Chinese residents to use the water heater as easy to use as energy photovoltaic inverter day device ; 3KW-5KW power segment specifically for Chinese residents tailored electricity and roof area .


June 15 , Xinyu City, Jiangxi Province, Jiangxi Province, Rexchip response "10000 rooftop photovoltaic demonstration project implementation plan ", after domestic inverter lot of product performance and price comparison , and ultimately selected day energy TSA3KTL-S and TSA5KTL-S series , the first day energy photovoltaic wind inverter have been shipped before installation went Xinyu City, tune , run. This project is expected to be among the first to benefit from "10000 rooftop photovoltaic demonstration project implementation plan" policy Jiangxi household rooftop PV projects .

2013年11月12日星期二

Enphase Energy Micro-inverter sales continue to grow

Micro-inverter market leader Enphase Energy continues to gain traction in the international market , the report 2013 second quarter sales increase of 28% from the previous quarter .

Enphase noted that $ 58.2 million of revenue to a certain extent by sales outside the United States to promote , in the proportion of total revenue last quarter from about 15% to 20 %, which is the fourth quarter of 2012, twice the percentage of revenue .

Gross margin for the quarter increased 28.1% , setting a new record , although the company continued to report a net loss , but the loss of almost halved , to $ 4.8 million .

Enphase Energy CEO Paul Naxi (Paul Nahi) conference call discussing the results , said: "In the second quarter, our revenues from outside the United States increased significantly , more off grid inverter than 20% of total revenue in Europe, we particularly strong in France , was an increase of over 150 percent, and the United Kingdom recently become after France 's second-largest European market . "

Major international markets, including Canada, France , Great Britain, Belgium, the Netherlands and Australia , with only a few years ago there was a significant difference in sales was mainly US-centric .

Growth momentum is expected to continue into the third quarter , although due to the fourth-generation micro-invertertechnology transition , making the distribution channel micro inverter reduces its inventory levels , leading to slowing demand .


Guruiwate into the photovoltaic market "counter-attack by"

Perhaps you have never heard of Shiyan " w ", but this " w " in the current PV industry is already very enrapture of the " counter-attack by " the. Recently, the reporter went to a high-tech enterprise located in Shiyan, Baoan Guruiwate new energy company , solar energy can be seen almost " no reservations " transformed into electrical energy , to create a global leader in Shenzhen .

What is an inverter ? It is a semiconductor device formed by the electric power adjusting means , mainly for converting the DC power into AC power . Among the PV system , the performance of the inverterdetermines the efficiency of solar energy . Shiyan " Watt " was born in March 2010 , is currently the most complete product line , the fastest growing photovoltaic inverter enterprises, in just 18 months time they become part of the domestic photovoltaic inverter outlet first position.

Recently, Guruiwate released two new products. Which a conversion efficiency of up to 99% of the new efficient inverters achieve global leader ; while another is the first landing the U.S. CEC list of the Chinese three models. It is reported that once invested in Apple, Google and many other world famous enterprises Sequoia Capital has already entered the " w " , the next step the company will move towards capital markets.

German inverter manufacturer SMASolarTechnologyAG the inverter price and sales both fell in the case of the first half of 2013 a significant operating loss . 2013 first half sales of 461.5 million euros ( $ 614.1 million ) , compared with 833.7 million euros last year, down 45%. The first half of this year , the company sold 2.5 GW PV inverter  compared with the same period last year declined 4.0 GWh . At the same time , caused by the influx of Asian rivals inverter prices fell sharply.


SMA in 2013 of the first half operating loss of 23.3 million euros , while the first half of 2012 operating profit of 86 million euros sex . Despite the poor results , SMA is still maintained its 2013 full-year forecast. The company expects to achieve a breakthrough in operating results , the completion of 900 to 1300 million euros in annual sales .

2013年11月11日星期一

Jingyi Green Golmud 20MWp PV power plant through the grid test

Recently, Jingyi new heights green energy company , following 500KW, 100KW PV Grid Inverter successfully passed the national grid LVRT full functional test , its independent construction Beikong Golmud 20MWp PV power plant once passed the State Network Qinghai EPRI and network testing.

     The test according to the national grid " photovoltaic power plants connected to the grid technical requirements " , " photovoltaic power plants connected to the grid test procedures" and Qinghai grid " grid PV power plant in Qinghai dispatching management regulations " and "Northwest Regional PV power plant and network management Interim Provisions" " Qinghai provincial Power Company network testing photovoltaic power plant Technical Guidelines " , including low voltage ride through capability test and frequency anomalies ( perturbation ) response tests. After testing, I am in the North control Golmud 20MWp PV power plant project is using an inverter fully compliant .

     Participation in this test there Hefei Sunlight , Emerson, TBEA, etc. 20 XJ inverter manufacturers around , but I am in this test is particularly prominent , is one of the few first-pass wind inverter manufacturers. And in all the measured PV plants , the company is responsible Beikong 20MWp Golmud PV plant lasted a minimum.

     The test related to the North control Golmud 20MWp grid PV power plant can be sold , so this test going all out all the members of the project team , solidarity and cooperation . Part of the members of the home overtime repeated experiments , some members rushed to the scene ahead of the field simulations. Site scarcity of resources , personnel shortage , often due to experimental reasons to miss dinner time . But these failed to slow the progress of the project team 's experiments .


     Hard work pays off in green energy pure sine wave inverter research and development department Jingyi joint efforts of all staff and the full cooperation of other departments , the company responsible for the construction of the North control Golmud 20MWp PV plant successfully passed his " entrance" and achieved excellent results. Once again underlines my Jingyi glory of green energy in the industry .

Gehrlicher Solar building Solar Park Perleberg complete annual generation capacity of 33 million kWh

After two and a half to start building , Gehrlicher Solar said that it has completed the construction of Perleberg solar park , the park is located between Hamburg and Berlin . The system's nominal capacity of 35MWp, estimated annual electricity generation of 3,300 million kWh. The company pointed out that because of the large-capacity solar park , the system is also equipped with a scalable 110kV substation , the station on August 23 connected to the grid . We are very grateful

    Gehrlicher Solar AG CEO Klaus Gehrlicher , commented: " We are very grateful County area policy makers and authorities, like Pele Berger construction sector . Moreover, we are very grateful between property owners : Pele Berg land Use Administration and the Federal real property management agencies, and also thank Aero-Club Perleberg good cooperation . "


    Perleberg solar park covers an area of ​​90 hectares , is located in the previous military airport , all PV modules to 144,144 blocks Yingli PV modules , using the 39 SMA PV on grid inverter , urban officials interrupted held in mid-October official inauguration ceremony.

2013年11月10日星期日

Soitec Italy 1.17MW concentrating photovoltaic power plants and

Soitec (EPA: SOI) today announced that the company has been Italy's largest concentrating photovoltaic power plant linked into the grid. The company built a municipality in Sicily Belpasso this 1.17MW of concentrating photovoltaic power plants. The project uses a 74 Soitec's CPV trackers, each equipped with a 168 Concentric concentrator photovoltaic components and two 500kW inverters. Soitec owns and operates the power station, the electricity generated will be sold to Enel.

    Soitec Solar executive vice president Gaetan Borgers said: "The completion of this solar power plant is Soitec to develop their business in Italy is an important milestone , showing all the region concentrating photovoltaic project advantages . This project also gives us a concentrating photovoltaic leading power efficiency and the ability to provide long-term stability , without consuming a lot of land and water , this technology is particularly suitable Italy , we have a unique advantage , developed a high level of efficiency , cost-effective power generation technology , we are committed to developing this part of Italy market . "

June 6, 2012 , Beijing Corona Science & Technology Co., Ltd. from 29 PV companies to stand out , passed the China Guangdong Nuclear Solar Energy Development Co., Ltd. in 2012 the first photovoltaic grid connected inverter system equipment procurement prequalification tender No. : CNPEC2012-0063 while other enterprises in Jiangsu finalists at the wind, Zhuzhou CSR , Shenzhen KSTAR , sun power , XJ , Anhui Yihe , Jiangsu Zhao V and Shanghai Chint .


   This project is the China Guangdong Nuclear Solar Energy Development Co., Ltd. in 2012 the first photovoltaic inverter system equipment procurement, photovoltaic power plant total size of 150MWp, photovoltaic modified sine wave inverter system equipment total purchase quantity is 300 units (150MW), supply basic unit that contains the DC power distribution cabinet ( with a minimum accuracy of 0.5 digital DC meter ) , including a single set of 500kW photovoltaic inverter sets of devices .

PV companies Dulwich dressed appearance solid Photovoltaic Exhibition Intersolar in Munich, Germany

May sixth SNEC PV Power Expo , solid Dulwich with " interactive user interface, large LCD screen " technology program, to obtain the organizing committee awarded the " Top Ten Highlights " GigaWatt gold medal. SNEC PV Power Expo to bring successful participation in the warmth , solid Dulwich dressed appearance on June 13 held in Munich, Germany Intersolar PV exhibition . Solid Dulwich intersolar exhibitors at this area of ​​60 square meters, located in Hall C3 inverter (C3.679).

   Dulwich solid -depth study of the European users of the PV solar inverters product demand, especially in the European market to upgrade the products listed . Continental Europe markets , solid Dulwich first time the corresponding German VDE-AR-N 4105 certification, the exhibition SS, DS and DT other three series of products all passed the certification . In the UK market , solid Dulwich launched a special supply GW3600-DS-UK product , this product will successfully control the maximum output current 16A or less, to better meet the needs of UK customers to use .

   Solid Dulwich briefed reporters Jiang Deming , director of marketing , said: " Europe has been the focus of particular concern Dulwich solid markets in the world , this is our investment in this market so much energy on the reason and we will pass on the company to optimize its internal resources configuration , the realization of the European market 's inclination to get better in the market share of the European market , this time we attended Intersolar exhibition of members who are solid Dulwich elite sales team this year in September held in Frankfurt twentieth seventh European Photovoltaic solar Energy Exhibition we will participate , welcomed the European community of friends come to visit . "


  It is understood that , in addition to having a solid Dulwich world's leading inverter conversion efficiency , lower THDi values, simple and excellent handling performance , but also solid Dulwich dc to ac power inverter notable features. The exhibition of three series of products , the smallest control interface also has 4 -inch (LCD). Interface for data users are most concerned of the display containing the current inverter power generation , total generation capacity , power generation and other day , supplemented by vivid animation describes the current status of work inverter . It is by virtue of this excellent performance , solid Dulwich won this year SNEC " Top Ten Highlights " GigaWatt gold medal.

2013年11月7日星期四

Xinjiang Production and Construction Corps Liu Qi met with Samil Power line inspection

May 27 , Samil Power Co., Ltd. ( hereinafter referred to as " Samil Power " ) CEO Cui Pei poly line to Xinjiang visit to discuss matters related investments . Corps deputy party secretary , Liu Qi met with the commander of Samil Power CEO Cui Pei poly line . Corps deputy commander Hani Bhatti · Sabu opened the meeting.

    Corps deputy party secretary , Liu Qi Duicui Commander Perry poly line to investigate the investment Corps welcomed . It is reported that the central work conference in Xinjiang , the state departments to earnestly implement the spirit of the meeting , continue to increase efforts to support the Corps . Recently, the National Development and Reform Commission to support the transfer of industries , promoting industrial development in the Corps , has introduced a series of high gold content of the differentiated industrial policies. Corps authorities are based on equipment manufacturing, new materials, new energy and other emerging industries characteristics, accelerate the formulation of preferential policies to improve the investment environment for foreign businessmen to develop the Corps to create a more solid foundation and conditions.

    Samil Power as a professional in photovoltaic dc to ac inverter and related products production, development, sales of high-tech photovoltaic enterprise , product manufacturing, marketing , service and other aspects of an advantage. Samil Xinjiang sincerely welcome new energy and other modern enterprises to invest in the Corps , I hope Samil Power can seize the policy opportunities , innovative forms of cooperation and achieve win-win development .

    Samil Power Cui Pei gather that in recent years , Samil Power in the photovoltaic industry has accumulated a wealth of research and practical experience . Xinjiang is China's largest province PV inverter future , invest in the development of photovoltaic industry in the Corps unlimited space , great potential. Samil Power will do our best to strengthen communication , expanding areas of cooperation for the Corps to make more contributions to the development of new-type industrialization .


Policy behind the photovoltaic industry inverter industry will benefit

According to yesterday released the " " second five "national strategic emerging industry development plan" , the new energy industry in the future to develop technologies mature nuclear power, wind power , solar photovoltaic and thermal , biomass , biogas , and actively promote renewable energy technology industry .

Among them, solar photovoltaic and thermal utilization of concern, had already made ​​it clear that a number of policies to encourage solar roof projects and subsidies to be tilted . Analysts pointed out that this will stimulate the development of photovoltaic industry , the inverter charger industry or benefit from it.

This year, the new field of energy policy favorable signal frequently. April , " distributed generation management approach " and " and network management approach" introduced the draft explicitly encourage all kinds of corporate and personal investment distributed generation , to take self-occupied , the extra power the Internet, all Internet and network three ways to solve the problem , this also marks the civilian areas of renewable energy is expected to fully liberalized in order to promote market growth and power consumptive .

Early May , "renewable energy quota system ," the discussion paper has been issued , and is expected to begin early next year implemented, which will ensure the wind, light and other renewable energy generation projects have sufficient domestic market optimism .

Since then , the state issued again support distributed PV roof project a clear signal . May 23 held a State Council executive meeting made ​​it clear that support for self-contained solar and other new energy products into public facilities and families.

In fact, this year, the Golden Sun Project and photovoltaic building approvals in the enlarged volume , industry sources said , in the second half to continue large-scale construction in the country , while photovoltaic power plants is expected from both policy and funding support private investment in " self-sufficiency "type photovoltaic power generation system , which will help in 2012 to enhance the domestic PV http://www.gridtiepowerinverteronline.com/ installed capacity , thus to some extent alleviate the plight of the PV industry development .

The reporter also learned from the National Energy Board , the National Energy Board is to encourage and guide private investment in research to develop new energy field implementation rules, expected by the end of June introduced.


In this context , analysts pointed out that encourage solar roof project , the development of distributed energy is the trend. "Renewable energy quota system", " distributed generation and network management approach with " and " and network management approach" is expected to be finalized in succession published in subsidies is expected to tilt the solar roof project , which will further stimulate domestic solar applications market this year, domestic new capacity greater probability than expected , while the inverter industry will benefit directly.

2013年11月6日星期三

TüV SüD PV inverter certification and testing

With the rapid development of photovoltaic industry , photovoltaic inverter for photovoltaic systems in critical areas , the importance of each country more and more attention. Various countries and regions on the photovoltaic inverter certification requirements and testing standards constantly introduced and perfected.

January 1, 2012 , Germany started the latest grid requirements VDEARN4105, 20126 upcoming month and network requirements for the execution of the Italian CEI0-21 , and both are photovoltaic inverter technology out of the country a channel threshold . Domestically, low voltage ride through testing (LVRT) requirement since August 2011 has been released , but also caused great concern within the industry and extensive discussions .

For the majority of these enterprises PV Inverter new testing standards, certification provides a more accurate and in-depth understanding , while a one-stop certification services to meet the business needs , TüVSüD will jointly China Electric Power Research Institute National Energy solar power research and development ( experiment ) Center , the China Quality certification Center and other well-known third-party agencies and new Energy Research Institute of Fudan University , held a new standard on the inverter seminar .

Then in order to better interpret the off grid inverter industry status and development trend of the future , we will be invited Securities, a senior lecturer attended and delivered a speech. Many investment analysis investment market staff will attend and participate in interactive communication.


We sincerely invite you to take part in April 26 held in Shanghai, "TüVSüD PV inverter certification and testing Seminar: Interpretation of new industry standards and Strategies " and look forward to work with you on the road in the solar industry and common development