Beauty "solar inverter" design for solar inverter conversion efficiency roadmap

Since "artificial leaf" concept put forward, the scientists have been high hopes to its, hope it can end up with a cheap since the control system,solar inverter and supply power for billions of the population in developing countries.

According to physicists organization network reported recently, the United States at the Massachusetts institute of technology (MIT), a research group on the efficiency of "artificial leaf" system limiting factor are analyzed in detail and design again, make it more close to reality,solar inverter and is expected to bring a practical, cheap commercial prototype.

Relevant papers published in the proceedings of the national scientific research.

"Artificial leaf" system combines two technologies: one is the standard silicon solar inverter, and converts solar inverter into electricity; 2 it is to connect the chemical catalyst on both sides of the battery.

Becomes a combination use of solar power inverter  to split water into hydrogen and oxygen to the electrochemical devices, hydrogen produced by fuel cells or other device used to solar power inverter.

In this system, the solar power inverter system and electrochemical performance of the system are determined, therefore the combination of efficiency is also predictable.

In the thesis, the researchers describe their design a framework to guide people how to get the output power of solar grid tie inverter  and electrochemical reaction system more effectively, proposed a more economic use of the existing solar grid tie inverter technology (such as silicon or cadmium telluride, and determine the efficiency of some threshold.

"This is a rather comprehensive analysis, survey of the existing technology on the market at present can do the best." MIT postdoctoral marc winkler said.

Research team has for the first time in 2011 show their "artificial leaf", but this time, the conversion efficiency is less than 4.7%.

New research is the "solar grid tie inverter" to continue.

MIT mechanical engineering associate professor Tony, Mr Boehner, who said, according to the latest analysis, using a single band gap semiconductor, such as crystalline silicon, and the combination of cobalt and nickel oxide catalyst, maximum conversion efficiency could reach 16% or higher.

"We are also very surprised." Winkler said, the traditional view, the characteristics of silicon solar cells, severely restricts their decomposition efficiency of water, but that is not the case.

Improving the efficiency of conversion from "solar grid tie inverter- fuel" is the key to combine appropriate battery with suitable catalysts, which requires a roadmap, guiding people how to matching can achieve the optimal.

Boehner said the sith with their design, to simulate the framework of traditional silicon based system, the maximum value of efficiency is about 16%; And for gallium arsenide battery system, limit efficiency can reach 18%.

Sensing and control makes the sine wave inverter

Omron in the field of "power inverter" and "control", has a large number and variety of product lines.

Omron to journalists focus on its industry pioneered "Sysmac automation platform".

Platform in the application of power inverter  advanced visual sensing technology, through the camera to power inverter, the number of test subjects, position, shape and other characteristics, can quickly determine whether the product qualified or will test data transmitted to the robot,power inverter and other production equipment. 

It connected by integration and integration software, grid tie inverter  with characteristics meet the demands of high-end mechanical automation,grid tie inverter from low number axis machines to large machines to provide a full range of solutions.

And this with grid tie inverter more corresponds to the development objectives in China. 

Omron (China) co., LTD., chairman and general manager Mr Indigenous company said: "omron in China established from research and development, production to sales, technical advice of grid tie inverter system, providing customers with the world's leading localization, cost-effective and relevant requirements of industrial automation solutions and high-end precision instruments,grid tie inverter helping China to change automatic equipment imported."

Visualization scheme to promote sine wave inverter saving energy

To increase the capacity of industrial production, in addition to improve the degree of industrial automation,sine wave inverter can also from the Angle of improving energy efficiency, cut. 

On factory power system design, sine wave inverter try integrated use of "energy saving" and "would" in two ways, both, improve the economic benefits of energy utilization.

One of the authors of the paper, a former MIT graduate students, Cassandra, said: "the significance of the paper lies in the fact that it describes the existing all such techniques as well as the effect of we combine these technologies.

It also pointed out that all have to face challenges,sine wave inverter researchers can separate analysis of these unfavorable factors through the experiment."

Such as standard silicon sine wave inverter battery voltage of 0.7 volts, the water-splitting reaction needs to be more than 1.2 v voltage. 

More than one solution is to put batteries in series.

Although the battery interface to lose energy, but also can yet be regarded as a promising research direction.

Another disadvantage is that the water itself, the electronic must be through the whole circuit, it will produce resistance, a method of improving efficiency is to reduce the solution resistance, this can be done through the "techniques", such as using interpolation board to reduce the distance on both sides of the reaction.

Therefore, ESC is an important factor to promote power converter consumption

Other main applications include seat airbag system in the position to determine, and power converter .

Industrial and power converter, but also will be the main force of the power converter market growth. 

Although revenues in this field is still small -- just over $100 million in 2016, is expected to but sensor used by the power converter price is much higher than consumer products and household appliances in the power converter. 

Market in the field of the driving factors include better performance of motor, through the use of feedback control and use less power; Higher power converter efficiency in solar inverter  devices,solar inverter device is mainly used in commercial applications. 

For industrial motors, the efficiency standard is prompting them to use the feedback circuit and solar inverter.

Solar inverter other expansion opportunities and position sensor, including general industrial applications; Medical applications of electric measuring flu; Equipment, aviation compass, switch; And the encoder.

Technology market differentiation is changing

Due to the solar inverter will be able to use different technology, its operating income structure will change. 

By 2016, 70% of the solar inverters  market revenue will come from a hall effect IC, and the rest 30% will come from the anisotropic solar inverters, the giant magnetic resistance (GMR) and tunneling solar inverters type of solar inverters technology.

Hall sensor technology providers, including Japan Asahi Kasei Microsystems, this is the hall element and leading bulk supplier of integrated circuits, its products are used in a variety of applications; Allegro Micro - systems, followed by the United States is a important hall IC supplier.

Germany's infineon hall-effect sensor products, also introduced more geared to the needs of automotive applications, expanded its MR product line at the same time.

Micronas, Switzerland is one of the important suppliers,solar inverters linear sensors are beginning to provide 3 d hall integrated circuit. 

Belgium Melexis supply hall integrated circuit, and take the lead in put out 3 d hall IC.

Austrian ams also introduced products, 3 d hall is expected in the near future sales in the market.

Industry performance is also very bad last year, dragged down by grid tie inverter market growth

In this application field, grid tie inverter  is mainly used for manufacturing and automation, and grid tie inverter and distribution. 

Industrial markets are expected in 2014 will be recovery.

Automotive and industrial sector growth last year, to a certain extent offset by strong growth in the field of wireless and consumer.

Grid tie inverter are increasingly used in mobile phones, tablet computers, game consoles, MP3 players and digital cameras.

In particular, sine wave inverter the mobile phone has become a new hot area using sensors. 

Can be used in the mobile phone,sine wave inverter for example, the special optical image stabilization module, are benefit for linear hall integrated circuit. 

In fact, many have image dithering problem because of the higher pixel smartphone,sine wave inverter is adopting grid tie inverter to stabilize the image.

There is still a growth opportunity

Looking forward to the future, solar power inverter still has a growth opportunity. 

By 2016, the automotive sensors in the field of a revenue will exceed us $1 billion, the growth drivers in the field of solar power inverter system will be required to install the steering wheel and wheel speed sensors. 

Other applications include Narrows the turbocharged engine size; Besides the drive-by-wire control system, drive system will also be used Angle and linear sensors, in order to provide information such as the accelerator pedal and the throttle position.

At present, the grid tie inverter in laws and regulations of the mandatory installation car solar power inverter systems play a key role. 

Electronic stability control (ESC) system, for example, used to help prevent slippage, require the use of relatively expensive and the Angle of steering wheel torque sensor, while affiliate of anti-lock brake systems need to use a four wheel speed sensors.

Fan Xiaoji said,grid tie inverter with an area of 15000 square meters. These

Panels together, grid tie inverter after they produce inverter into alternating current (ac), a control system to the Internet, to achieve parallel operation.

"Grid tie inverter, no energy consumption, reduced the coal and hydroelectric grid tie inverter, the country save energy, reduce co2 and greenhouse gas emissions." Fan Xiaoji said.

This new type of energy, solar grid tie inverter , more and more people favor.

Changqing party school investment of 2 million yuan last year, using grid tie inverter of changling, on the roof of the 2000 square meters,solar grid tie inverter has formed a 200 kw photoelectric integration of the small solar grid tie inverter, this year can be operational.

This insight, the regionalization of county, will also be looking for the development of photovoltaic solar grid tie inverter, plans to form a small  wind grid tie inverter .

West machine, qinchuan, lingyun, a group of companies such as photovoltaic products will be gradually built.

Mr Biogas system junk renewable biomass solar grid tie inverter "gold"
Leaves, straw and waste is waste in the eyes of many people,wind grid tie inverter but in the eyes of investors into a "baby".

Forward-looking investors will the collected waste gas generated in the power, benefit is also very nice.

On March 11, the reporter comes to baoji ling tableland waste plant, see garbage trucks will collect the city garbage dump in succession in the landfill, a couple of bulldozer rolling back and forth,wind grid tie inverter as the loess cover, job site to see the trail of the garbage.

However, garbage landfills are playing the energy waste.

Not far from the treatment plant, two sets of generator continuous hum, it turns out that biogas generated from the generator is using waste plant to generate electricity.

Project director Li Haigang tells a reporter, biogas solar grid tie inverter is the new energy projects.

In this area, changling power converter co., LTD in zhuhai is "the first person to eat crabs".

In 2009, as the second take-off in changling, the grid tie inverter project of the new energy source for enterprises to accelerate the development of the booster.

In July 2010, formed the changling grid tie inverter co., LTD., first enter the photovoltaic industry in our city. 

They target as the key of the production of grid tie inverter control unit, inverter. 

By the first power converter  design, construction to operation and maintenance, now, have the ability to design large scale power converter station. 

Started in 2010, they design in a large factory installed 200 kilowatts of power station, power converter only 240000 degrees. 

In July last year, they again investment of 16 million yuan, in the enterprise multiple workshops designed to build on the 1 mw power converter demonstration plants. 

Until now, has been generating more than 70 degrees, 1.2 million degrees expected power converter capacity.

Photovoltaic industry technology content high, enticing prospect.

Changling solar inverter 3 years data is the best.

From 2010 to 2012, the enterprise value from the original 20 million yuan to 140 million yuan last year.

"Solar inverter in the national electricity only accounts for less than 1%, therefore its development space is enormous. 

This year we plan to realize the output value of 500 million yuan." Shaanxi changling solar inverter electric co., LTD. General manager assistant Fan Xiaoji said.

March 8, the reporter on the roof,solar inverter and by the eyes on the top of the building, one person's much taller solar inverter are lined up. 

In accordance with the agreement, the project application of power inverter with charger

Advanced technology of silicon thin film solar power inverter  for power generation, after the completion of each year will provide production and living of foshan factory with more than 10 million degrees of clean electricity, equivalent to nearly 10000 households for a year of living power, accounting for 9.4% of the total solar power inverter of the factory.

Year 4500 tons of standard coal saving, total carbon dioxide emissions of 11200 tons, 340 tons of sulfur dioxide emissions and nox emissions of 170 tons and 3000 tons of carbon.

While environmental protection environment,solar power inverter will effectively ease the local energy supply tension, power inverter with charger play a positive role in order to speed up the local industry structure adjustment.

Water-saving: "power inverter with charger" to realize zero discharge of sewage
Foshan factory in the beginning of construction,power inverter with charger in wastewater treatment has set up a new model for the industry.

The factory drainage by wind turbine inverter  system.

Factory sewage depth processing, meet the national sewage recycling related standards before the part back to campus afforestation,wind turbine inverter the remaining pool access to production,wind turbine inverter as production, such as toilet flushing water.

Water reuse system can day processing 1870 tons of production and living sewage, truly achieve the sewage collection, treatment and recycle of "zero emission", for China's sustainable economic development devoted himself to the silly art of gossip.

Saving material, saving start with each lamp
Foshan factory in the planning design of daylighting skylight, make full use of natural light to illuminate the building interior,wind turbine inverter save a lot of lighting equipment, lighting and electricity.

In LED lamp, metal halide lamp, mercury free, such as high efficiency and energy saving fluorescent lamp, solar street lamp lighting system,wind turbine inverter under the application of the material saving start with each lamp.

Environmental protection: the employees are more "love"
As a manufacturing enterprise, faw - Volkswagen attaches great importance to the production management of employees, production units adopt green production process.

At the same time, in order to further realize the goal of saving power converter

Faw - vw also at the scene and its group signed a cooperation agreement the 10 mw solar energy photovoltaic power converter , this is the first large-scale application in automobile industry.

After the signing ceremony, guests to participate in the middle of the south China sea park" faw - Volkswagen public welfare forest "tree planting, planting the green of hope at the same time, the feeling with people, power converter, and the natural harmonious communion of healthy lifestyle.

According to faw - Volkswagen automotive co., LTD., director, solar power inverter AnTieCheng, energy conservation and environmental protection enterprise, is the responsibility of the whole society, is also a faw - Volkswagen unswervingly pursuit and sacred mission.

Faw - Volkswagen will, as always, practice solar power inverter and environmental protection concept, continuously promote the all-round development of China's automobile solar power inverter conservation and environmental protection cause, to create green value chain, the construction of our beautiful garden and contribute more power converter!

Lean new standards for green building industry value chain

Event, China's green building green committee,solar power inverter the China construction science research institute to build Yin Bo awarded to deputy director of the center of foshan factory building "solar power inverter" samsung certification, and in the field of energy conservation and environmental protection efforts gave high evaluation. 

"Faw - Volkswagen plant through the introduction and absorption of foshan city, known as the 'world's most environmental protection dc ac converter  factory popular north American plants planning standards and design experience, and form the efficient industrial cluster effect, in the construction of the whole life cycle, the maximum energy saving, water saving, material saving, protect the environment and reduce pollution, provide applicable for production, scientific research and personnel, health, safety and efficient use of space, in creating high quality dc ac converter at the same time, also passed a kind of high quality of life concept dc ac converter, for China's automobile industry has established a new standard green economy up the value chain."

Energy saving: let more low dc ac converter production

In order to further achieve national saving energy and reducing consumption, faw - Volkswagen automotive technology co., LTD.

Deputy general manager Dr. Unser together with its holding group signed a cooperation agreement the 10 mw solar energy photovoltaic power converter. 

Heart is Taiwan compatriots to do good power inverter

In February this year, power inverter  to attend the meeting on Taiwan work in 2013, when it comes to "do more for our compatriots in Taiwan to do more practical work, good", he mentioned something about hairy crabs "event" - Shanghai the second year in a row to miaoli county of Taiwan output hairy crab seedling and breeding technology patent,power inverter in order to help the local development of sightseeing agriculture, the lovers meet Taiwan's taste buds.

1 million juvenile crab are small, but power inverter think it is the "event" on both sides of the friendly cooperation.

In place as a "head", yu always attaches great importance to the issue of protection of the rights and interests of Taiwan, power inverter with charger the Taiwan compatriots concern always hang in the heart.

During his administration in Shanghai, comes at a time when the international financial crisis spread,power inverter with charger taiwan-funded enterprises and other enterprises suffered great impact, China export enterprise one of the "leader" of Taiwanese quanta hasn't been spared. 

To quanta chairman Huang Jiantang surprise in enterprises to export the "most difficult" moment,power inverter with charger zhengsheng one-on-one meeting with him.

"When they saw me, he would ask, 'what are the difficulties, embarrassed openings also would say', today I think about it, solar inverters this sentence is very warm." Huang Jiantang memories.

One day in March last year,solar inverters zhengsheng quietly came to taiwan-funded enterprises JiFuXin energy is located in the outskirts of the factory,solar inverters on the production line with workers communicate for almost an hour. 

This traveling incognito for him is not the first time.

"He was humble attitude, understand solar and thin-film technology, high and new science and technology, encourage enterprises to encourage Taiwanese exploration transformation.

Sitting beside zhaxi zhuoma, holding a lovely child,grid tie inverter and the old words daily

The next day, he also take snow came to furnace yulin village, old town to see grid tie inverter poverty due to the husband suffering from uremia.

In ganzizhou this concentrated in poor areas,grid tie inverter, irrespective of the eastlands's visit to the livelihood of the people all the way, ask,grid tie inverter more on the way to think.

With t he county cadre,grid tie inverter no rhetoric and the demands is very specific, honest, like open a "YaoFangZi" : actively developing higher vocational education, to improve the competitiveness of the young people in the job market; To Tibetan areas in the mainland labor to create more jobs, to boost household income...

The communist party of China (18, big sine wave inverter take on new responsibilities. 

In his schedule in those days,sine wave inverter ethnic and religious work occupied a significant position.

In late January of this year sine wave inverter visited national religious groups in Beijing. 

Spring Festival a few days ago, he was invited to zhongnanhai, solar power inverter head of the religious groups, on behalf of the general secretary of the central committee of the communist party of China, and xi jinping to the religious people and the masses of believers say New Year wishes.

Yu zhengsheng,solar power inverter to the attention of the party committees and governments at all levels also concerned about the difficulty of the religious groups and religious believers of life,solar power inverter to ensure that the masses of believers to live a happy and peaceful holiday.

Form of care, thoughtfulness to big family of the Chinese nation unity and cohesion and the patriotic united front.

Unity and democracy are the two themes of the Chinese people's political consultative conference.

To this, yu zhengsheng has deep awareness.

National conference on united front minister at the end of last year, one of his argument is impressive: "to correctly handle the relationship between consistency and diversity, and always adhere to and constantly enhance consensus, treat different parties with broad mind, nationality, class, religion, believers as well as general members of different social system, the implementation and the unity on the basis of different."

Create engineering demand become new solar inverter industry growth accelerated

The ministry recently released "about promoting the healthy development of the solar inverter  industry guidance" (draft).

Different is that this is the first time made clear for the guidance on hospitals, schools, hotels, swimming pools, public baths and other large consumer hot water using solar inverter central hot water system, offer certain subsidy.

This means that the solar inverters industry development center of gravity will be from the retail market to engineering market,solar inverters as the subsequent creation of specific measures, solar engineering market will enter a rapid development period.

Solar inverters industry this year is expected to inflection point by means of engineering market rapid growth in industry, the industry is expected in the next three annual compound growth rate of 30%.

Engineering market will enter a rapid development period.
According to China's solar grid tie inverter  heat utilization of rural energy industry association professional committee of statistical data and diameter, the solar grid tie inverter is divided into retail market in China, engineering market and export market of three parts.

 At present, the retail market accounted for 50%, engineering market accounted for 45%, and 5% export market.

Due to slowing growth in the retail market is nearly two years, the industry is gradually transferred to engineering, coupled with the government support to engineering in recent years, guided by policy of the development of the construction market is expected from its early into the growth period, the project will more than retail sales, is expected in the next three years engineering market around the compound growth rate of 35%.

Ben hill said: "only the commission of complaint material, know the solar grid tie inverter list."

To press check, failed to get in touch with EU ProSun calls seeking comment.

German company Soventix toth, power inverter vines have no opinion of EU ProSun.

On February 18, after the commission hearing, toth vines in answering newspaper reporters' questions,power inverter pointing to the EU ProSun no facts according to the results of a survey, is "nonsense".

"To be"

Another European power inverter association AFASE also have to take counter measures. 

Germany Soventix company is the member of the enterprise.

Chief executive officer, teng told this newspaper AFASE some members of the enterprises have to consider to cancel the present supply contract in Europe, solar power inverter and to assess the loss.

AFASE advocated free trade more than 160 member enterprises, in addition to the three Chinese companies, the rest are European companies.

AFASE participated in the hearings held on February 18,solar power inverter the commission on,solar power inverter and submit the three punitive tariffs of 20%, 35% and 60% under scenario analysis report. 

Report concluded that for the eu's own interest,solar power inverter anti-dumping to China a lot of good. 

According to the hill, the hearing is very successful.

Ben hill emphasized "the European commission just work here," solar grid tie inverter torres vines are more sensitive to the political factor. "

We (the European photovoltaic enterprise) competitiveness has fall into the bottom, don't want to take any political pressure."

Toth, teng said. "in addition to an open market,solar grid tie inverter we don't need anything."

The European commission last year on September the anti-dumping investigation on Chinese solar panels, November began to investigate whether there is any illegal subsidies.

The commission will be in the latest three months after the June 6,solar grid tie inverter to decide whether temporary anti-dumping duties on Chinese products. 

Eventually determine imposed punitive tariffs on a deadline is December 5, but you need to vote on the eu member states.

Household solar power inverter can be sold? Also just painted flowers!

As the state grid, which was launched last month on the distributed solar power inverter  service work opinion ", is committed to promoting photovoltaic, wind, natural gas, such as distributed solar power inverter into the national grid, self-sufficient individual solar power inverter, can even hooked up to the money became the hottest topic.

On March 12, in jiangxi province is the first residential users distributed grid-connected photovoltaic projects - LianHuaXian yangs saemaul undong Zhu Jianbing jincheng highway 220 volts in distributed solar power inverter projects by grid tie inverter measurement device installation and interconnection, the hair electricity contract signed acceptance and commissioning, after successfully connected to the grid. 

Yangcheng evening news reporter survey found in guangzhou for several days, however, even if is the most likely implementation of solar power inverter, in a year or two to grid tie inverter to make money is only a "hunger".

1

Threshold a who has 200 square meters of the roof

"This is a very interesting topic." Guangzhou grid tie inverter bureau co., LTD electric power converter test research institute (hereinafter referred to as "electric power test research institute) director Liu Guojun in yangcheng evening news reporter interview smile said:" as far as we know, university of south China university of technology, the city has solar power inverter, and as a pilot. 

As for domestic small-scale power converter (in addition to the grid tie inverter), almost none."

Why is that? Very simple, the "indifference" of power converter.

 "Our institute made an experimental power converter, is just solar panels area, has been to more than 200 square meters. 

Efforts, achievements of the "first blood" in the transformation of chint solar.

As the largest domestic solar power inverter  construction of private enterprises, chint has built 750 mw solar power inverter and solar power inverter project under construction, which has been connected to the grid in the power station more than half. 

This year the new 300 mw power plant, mostly has also got the project.

Hui revenge show that, due to the European "double reverse" the conclusion is not yet clear, the domestic power converter  supporting policy pending, power converter this year if I can walk out of the "trough" is hard to say. 

But don't panic "bread" has heart, depends on the power converter smoothly, revenge show Hui to fulfill the sales task group issued 5.5 billion yuan this year was "very confident", compared with last year, that number increased by 12.2%.

"In addition to actively participate in the power converter in zhejiang province" five one "comprehensive innovation pilot work, this year we will strengthen and foster, curtain, etc. 

Other advantages in the field of enterprise cooperation in the industrial chain division of labor."

Revenge show Hui said, and "win-win co-operation" of the enterprise, is to chint inverter with charger cost is further reduced.

But problem also subsequently and come.

German photovoltaic inverter with charger is given priority to with access to distribution network, distribution and scale is larger, caused great influence to the safe and stable operation of inverter with charger network, noon peak distribution network congestion phenomenon is very serious, acceptance of distributed inverter with charger capacity is insufficient, the distribution network has become a German photovoltaic industry development the important restriction factor.

 As a result, Germany in 2009 began to cut subsidies for solar power inverter.

Hooked up to the problem of distributed photovoltaic (pv) power inverter with charger also is able to "last year

Following the end of October last year, state grid (microblogging) published the opinion on distributed grid tie inverter  (pv) service, aimed at clearing the 10 kv and below problem of voltage grade in power grid tie inverter distributed grid tie inverter.

Distributed photovoltaic (pv) grid tie inverter "failed to sell" at this stage

However, the grid tie inverter opinions issued five months, the distributed grid-connected photovoltaic (pv) application does not see more in our country. 

Southern daily reporter according to public information statistics, there are only including Beijing, Shanghai, Qingdao, jinan, wuxi and other places there are a few people, from business application enthusiasm is not high also.

Why distributed photovoltaic power converter will appear the situation of failed to sell?

In bloomberg new energy finance analyst Wang Min nan understanding, most residents have not roof with independent property rights, and less electricity consumption, electricity price is low, and photovoltaic power converter need investment, maintenance, leads to lower construction enthusiasm.

"Distributed photovoltaic cheered don't hit, the main reason is that the state of distributed photovoltaic electricity price policy is not clear,power converter can't let people to form a reasonable and stable expectations."

 CPPCC, deputy to the National People's Congress, jiangsu variety group chairman ZanShengDa submit the Suggestions for promotion of distributed photovoltaic said in the proposal.

In fact, a distributed grid photovoltaic power inverter with charger after problem solving, electricity price subsidies to become the industry look forward to.

The good news is that recently there have been reports that the national development and reform commission has issued "notice about perfect the photovoltaic (pv) power inverter with chargerr price policy" exposure draft, among them, a distributed electricity price subsidies for 0.35 yuan per KWH.

"Mentioned in the draft only subsidies for spontaneous use KWH 0.35 yuan, 0.4 yuan to 0.6 yuan lower than market expectations, and give the same subsidies is still unclear as to whether online part."

Wang Min nan told reporters, the southern daily from rate of return, if just for spontaneous self-use of subsidies, rooftop pv power inverter with charger plant investment return period is longer than the other.

Beijing residents such as HaiHua distributed grid tie inverter photovoltaic (pv) application is the first man. 

He told reporters, the southern daily now photovoltaic roof power inverter with charger subsidies can only in accordance with 0.4 yuan settlement feed-in tariff, desulfurization of coal even though the Internet part 0.35 yuan KWH subsidy, combined with their own electricity price of 0.5 yuan, his small photovoltaic power inverter project returns need to 12 years of time.

Can open the domestic market is the key to save the power inverter

In fact, countries have already realized that could open the domestic market is the key to save the power inverter industry.

After, the western large-scale photovoltaic power inverter, once the darling of many photovoltaic companies.

In July 2011, the national development and reform commission (NDRC) to release the feed-in tariff of photovoltaic power inverter, photovoltaic enterprise attracts a lot of western investment in large-scale photovoltaic power inverter. 

Limited, however, because the west electric power demand, leading to some western photovoltaic power converter is difficult to operate at full capacity.

The analysis thinks, as the world energy consumption big country, China has the world's largest power converter capacity, also has the world's most complete pv industry chain, urban and rural areas in our country has the most populous city in the world the roof of buildings, industrial buildings, civil construction, "open the domestic distributed power converter market, can really save the photovoltaic industry."

"China has 316 million square meters of sunshine good roof conditions of resources, to about 31.6 billion KWH per year, the equivalent of a year on 30 million Chinese residents of electricity every year."

The above analyst data provided by the more exciting.

He also pointed out that the Middle East, for example, the city layout has a lot of solar power inverter roof resources, plus the city paying ability is stronger, better economic basis and has installed the potential scale and potential.

In fact, from last year, national energy administration pushed many times "distributed photovoltaic (pv) solar power inverter", and called for "promoting", for photovoltaic solar power inverter request is "pushing".

And at the end of last year during a state council executive meeting, also put forward "actively explore the domestic photovoltaic application market, and strive to promote the distributed photovoltaic (pv) power generation", "distributed" power level is mentioned for the first time the state council.

Solar power inverter water heater should be more mature to era of hot water to health

Although the solar inverter  has been a household name, but consumer understanding of solar inverter industry, products are not enough mature, this requires our solar inverter enterprises especially the leader on the one hand to do a good job in industry product consumption trend lead to create market; On the other hand is to according to their own products to science and education.

Current solar inverter market maturing, consumers brand consumption and healthy consumption become inevitable.

For consumers, when you buy solar power inverter , decide to buy or not buy, buy which brand, which style to buy depends on the accumulation of brand awareness, product performance and reputation of the brand, and the brand can bring consumer is cheerful personality and self satisfaction.

Such as now with many leading brands industry gradually on the solar power inverter quality health technology breakthrough, which means that the solar power inverter in the hot water bath from pure can be extended to wash the dishes, wash the dishes, cooking, etc.

Every aspect of daily life. Also marked at the same time, China's solar grid tie inverter  production from absorption of heat, heat competition era towards health and hot water.

For solar grid tie inverter products in service marketing, must first fully understand the needs of customers, understand customers' concerns and expectations, can be targeted to take measures to meet the needs of customers.

Investigation in different ways, can use the questionnaire survey, site investigation, telephone pays a return visit, such as door-to-door visits to investigate for a new user.

Currently solar grid tie inverter enterprises can focus on considering the contact authority website consumer network investigation, telephone pays a return visit, the door back three ways.

Second, channels, strengthen the construction of the dealer service network.

Currently most dealers are in sellers and sell the latter plays a dual role, specific to the after-sales service are generally performed by installation personnel.

Caused by the dealer network is not sound after-sales service stand out, not in time to solve this problem, you need to strengthen the construction of dealer service network, the development gap outlet dealer or third party service providers.

In addition, at present the country to advocate energy conservation and emissions reduction, at all levels of government and township government subsidies to promote solar energy water heater popularization and promotion, the installation of the solar water heater has become a highlight in the new rural construction, become the important symbol to improve rural residents living habits.

The starting of the rural market, attract channel integral sinking fast, flat solar water heater industry.

Solar water heater enterprises can change the past from prefecture-level agents to the traditional model of villages and towns retailers, directly in the villages and towns established retailers or stores, make the channel more flat.

Solar inverter water heater should be more mature to era of hot water to health

Although the solar inverter  has been a household name, but consumer understanding of solar inverter industry, products are not enough mature, this requires our solar inverter enterprises especially the leader on the one hand to do a good job in industry product consumption trend lead to create market; On the other hand is to according to their own products to science and education.

Current solar inverter market maturing, consumers brand consumption and healthy consumption become inevitable.

For consumers, when you buy solar power inverter , decide to buy or not buy, buy which brand, which style to buy depends on the accumulation of brand awareness, product performance and reputation of the brand, and the brand can bring consumer is cheerful personality and self satisfaction.

Such as now with many leading brands industry gradually on the solar power inverter quality health technology breakthrough, which means that the solar power inverter in the hot water bath from pure can be extended to wash the dishes, wash the dishes, cooking, etc.

Every aspect of daily life. Also marked at the same time, China's solar grid tie inverter  production from absorption of heat, heat competition era towards health and hot water.

For solar grid tie inverter products in service marketing, must first fully understand the needs of customers, understand customers' concerns and expectations, can be targeted to take measures to meet the needs of customers.

Investigation in different ways, can use the questionnaire survey, site investigation, telephone pays a return visit, such as door-to-door visits to investigate for a new user.

Currently solar grid tie inverter enterprises can focus on considering the contact authority website consumer network investigation, telephone pays a return visit, the door back three ways.

Second, channels, strengthen the construction of the dealer service network.

Currently most dealers are in sellers and sell the latter plays a dual role, specific to the after-sales service are generally performed by installation personnel.

Caused by the dealer network is not sound after-sales service stand out, not in time to solve this problem, you need to strengthen the construction of dealer service network, the development gap outlet dealer or third party service providers.

In addition, at present the country to advocate energy conservation and emissions reduction, at all levels of government and township government subsidies to promote solar energy water heater popularization and promotion, the installation of the solar water heater has become a highlight in the new rural construction, become the important symbol to improve rural residents living habits.

The starting of the rural market, attract channel integral sinking fast, flat solar water heater industry.

Solar water heater enterprises can change the past from prefecture-level agents to the traditional model of villages and towns retailers, directly in the villages and towns established retailers or stores, make the channel more flat.

UL formal Japanese solar cell testing center

Underwriters Laboratories (UL) was officially opened yesterday in ise Japanese oita, UL photovoltaic testing center, can provide to the nearest Asian manufacturers in solar inverter performance and safety testing services.

Through UL in real-time technical support, local manufacturers in Japan and Asia will be able to more quickly to products to promote the international market.

The solar inverter testing center in Japan ise UL in SAN jose, California, USA, China suzhou, Frankfurt, Germany, to build the fourth UL solar inverter testing center, is the second in Asia. 

Covers an area of 1700 square meters, owns 14 world-class testing box, including the water resistance test box, the sun simulator, environmental testing box and a series of sophisticated testing equipment, can be a sunlight simulation test, impact test, hail and so on various aspects of testing.

Asia is the largest export solar cell, modules and components market, very valued rising local UL testing requirements.

UL this year has also further expanded its in Asia the first suzhou photovoltaic technology center of excellence; The laboratory covers an area of about 700 square meters, including seven do temperature cycle and cold test of temperature and humidity box, 2 for the temperature and humidity of the IEC standard damp heat test box, test scale up to 120 new models each year.

UL in Asia except successively set up solar cell testing center in China, Japan, is now in India is also actively planning for the new solar cell testing center. 

Since the 1980 s, UL has been committed to the solar grid tie inverter  standard research, and launched the solar grid tie inverter  standards UL1703 and UL1741; At the same time, UL is CB system, the only have issued and approved double qualifications in the United States national certification body, and can the IECEE CB certificate.

Be useful to take high quantity of heat, household solar inverter provides hot water

Voluntary national standards GB/T19141-2003 “household solar inverter system technical conditions” regulation, compact type useful household solar inverter, heat is not less than 7.5 MJ/m2, split type useful household solar inverter, heat is not less than 7.0 MJ/m2.
2, appearance
The outline of the test mainly solar inverters  area were tested, the standard deviation of nominal aperture area and the actual contour lighting area is 3% or less.

Solar inverter tank volume and lighting area is directly affect the thermal performance index of the goods, will also affect to some in the selection and design using the goods from the basis, the tank volume is too small, may have water heats up quickly, but the available water quantity is little, need to use that meet the constant water injection, waste heat resource, at the same time the actual lighting area, such as inconsistent with nominal aperture area (production unit markings were generally large), there will be the temperature of the water is not hot, it is difficult to meet the requirements of use.

3, hints of choose and buy
At present, various types of household solar inverters water heater market, according to the types of solar collectors to differentiate, can be divided into the vacuum tube type of peace; According to the structure distinguish, can be divided into one-piece and separation; According to the production process, can be divided into the confined and unconfined.

Among them, the most common is the pressure on the vacuum tube type of household solar water heater and fission flat water heater, solar water heater of choose and buy goods should pay attention to the following:
(1) the key components of household solar water heater is all-glass vacuum solar thermal collectors (vacuum tube) or flat plate collector (flat), vacuum tube or plate quality directly affect the performance of the whole household solar water heater.

Careful observation on the glass tube vacuum tube coating or coating on the tablet, this layer is called the solar selective absorption coating, coating manufacturers because of the craft that make different, coating color will have difference, but is generally black, dark blue or dark grey, uniform color, good quality coating film scratches, peeling, or fall off phenomenon, there are no stones or on the glass knot phenomenon, support of support inside the glass tube is placed correctly and not loose.

Qingdao photovoltaic (solar panels) to meet the eu "double back" big test

"It is too bad, starting on March 6th, enterprises to export the European photovoltaic products will be forced to register." Chong Ming new energy co., LTD., general manager of Qingdao Wang Zhongfeng very try so hard, the European policy environment of tighter, directly affect the customer demand, order book from march, enterprises to export volume fell by 50% in the whole eu products.
, Qingdao financial daily reported on March 5, the commission announced that since 6, on imports of Chinese photovoltaic cells, thickness of less than 400 microns, wafers and panels import registration with the component implementation, which means that the Chinese photovoltaic products double the retroactive period officially established, tariffs for "traceability" beginnings.
From September 6, 2012 the eu anti-dumping investigation on Chinese solar panels , pv enterprises in the overhead suspension in Qingdao a "boot" sure, in back tax investigations in market environment, most of the companies on June 6, the eu eventually ruled that don't have confidence,solar panels they begin to pay close attention to the domestic market, looking forward to more technology breakthrough.
Retroactive tax investigation result in orders in half
"We are ready, but the market change really comes, or influence." As photovoltaic components downstream of enterprise, Qingdao chong Ming new energy of the reaction is not accidental.
Wang Zhongfeng revealed that at present, solar inverter the enterprise exports European photovoltaic panels, components and other products,solar panels in Europe to retroactive tax investigation department registration,solar inverter enterprise information, export quantity and so on all has to be in "record", although the rate is no change, but the existence of the tariff "traceability" may,solar inverter almost halved the eu customer orders directly.
Photovoltaic enterprise common feeling, this is Qingdao according to insiders, Qingdao photovoltaic products 80% exports, and the European Union occupies nearly 40% ~ 50% of the foreign market. One of the leading role of the eu "mandatory registration" solar components, sine wave inverter photovoltaic industry has occupied Qingdao nearly 90% of its capacity.
An unnamed photovoltaic enterprise of Qingdao international sales manager, told reporters that he is responsible for the European and American markets for 5 years,sine wave inverter starting in 2010, the market has been "hanging heart". , according to his latest products enterprises to export profits almost to zero, to ensure that the old customer, "this is not a long-term solution, now basic to bottom of the market in Europe, I'm afraid I could not restrain a sharp fall in April."
And this is not an accident, a week ago, the European Union has just for anti-dumping investigations into Chinese photovoltaic glass, which makes "the European Union to China from photovoltaic (pv) in the room" has become the consistent feeling of Qingdao photovoltaic enterprises.

In recent years, enterprises in the international market power inverter have not adversely affected.

Recently, the enterprise research and development of the micro inverter is European and American markets, as a domestic leading technology products, exports of 10000 ~ 15000 sets, let the order nearly 2 months.

Wang Zhongfeng self-torture internal work is leading enterprises, 2013 research and development costs will account for 40% of the investment proportion.

He negotiation with scientific research institutes in Taiwan recently，looking forward to will  solar panel efficiency increase of 40%.

 In his view, the "enterprise only has the core technology, can transcend adverse environment, enterprise competitiveness and to really build up."

Emerging in the domestic market

Under pressure, Qingdao photovoltaic enterprises countermeasures.

According to the industry, some companies choose to temporarily, will be shipped to Europe's components in Russia, the Middle East and other places to find the market sales, power inverter  to the nearest to ease into the eu market, and more enterprises will develop emerging markets such as Australia, South America, South Africa into a market focus in the future. "This year,power inverter we will further open up the Australian market." Nortel energy (Qingdao) co., LTD. Deputy general manager wang fang tells a reporter, inverter manufactured by enterprises in the Australia market share has super jump Europe and the United States,solar panel product export has been rising sharply.

And with the domestic "distributed" policy of gradually clear, more enterprises will focus to the domestic market. "It's time to seriously look at the domestic market." HaiLin electronic materials technology co., LTD in Qingdao manager Yang yong, as the supply of cutting fluid upstream enterprises,power inverter he felt the domestic market is recovering, sine wave inverter "is now a monthly production capacity of 800 ~ 1000 tons, the market demand is around 1500 tons, our steps to Michael at once is too big, want to go step by step steadily."

Already let go of the hands and feet and downstream enterprises, Wang Zhongfeng said, "this year,sine wave inverter ready to concentrate on the offensive" small wind, from march,sine wave inverter the domestic has 50% market share. The European Union "double reverse" may give enterprise to bring the mighty arm was determined. ".

Photovoltaic technology lead eventually to break

Exit from the European Union market, Qingdao enterprise another option might affect more long term.

Seize the opportunities listed development to lead the power inverter in the future

Has been China's equipment manufacturing industry is almost ABB, dominated by international giants such as Siemens, Mitsubishi, power inverter national brand development difficult.

 In recent years, the country launched the equipment manufacturing industry restructuring and revitalization plan, power inverter require stronger and bigger equipment manufacturing industry, improve the independent innovation and the level of domestic equipment manufacturing industry.

Automation and control systems as increasingly important to each equipment
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An integral part of the competitiveness of the equipment to upgrade the prerequisite.

Objective of upgrading the equipment manufacturing industry has increased the demand of industrial automation and control products.

GEM listed company Kymmene technology is to seize this historic opportunity for development, a meteoric rise in the automation and control industry in recent years, dc to ac converter as a "dark horse" in the industry.

In early March 2013, the reporter made a special trip to the Kymmene technology, and an interview with the company's chairman and managing director Zhu Xingming.

Homeopathy for

Assigned to do technical services to the marketing, product development,dc to ac converter to the senior managers from the graduate school of a small business in Shenzhen began to do technical, Huawei Electric and American EMERSON served in senior management, power inverter with charger the last Kymmene technology, Zhu Xingming all the way witnessed the development of industrial automation and control industry in China.

"China's equipment manufacturing industry needs to be localized automation control manufacturers support." Zhu Xingming straight to the point.

Control Network in China is expected to domestic industrial control automation market in 2020 will reach 200 billion yuan basically doubled-growth.

Polysilicon costs now account for only 20% grid tie inverter to component.

 Overall polysilicon prices declining to follow the process of PV grid tie inverter parity in 2013 is more than 20 U.S. dollars / kg in 2014 to supply 10-20 U.S. $ / kg polysilicon. "said Zhu Gong Shan judgment.

GCL's deputy general manager of Jiangsu Zhongneng Lv Jinbiao, the company has begun upgrading the existing modified Siemens process device test proved successful,grid tie inverter and in 2012 a new generation of silane fluidized bed method, completed the industrialization after each kilogram of polysilicon consumption to less than 25 kwh, a conversion rate of 98%.

Zhu Gong Shan, China Securities Journal reporter, said, "PV costs can be reduced to $ 10 / kg, short process, low power consumption,grid tie inverter the byproduct full recycling, sine wave inverter a new generation of the silane fluidized bed technology can achieve less than first-class modified Siemens Method half. "

To achieve true parity Internet,sine wave inverter not just polysilicon cost reduction, including the backplane, inverter, bracket, tracker system products include the relatively large decline in space.

Differentiated tax policies should be canceled for polysilicon

Should see the nature of the high energy consumption than the polysilicon industry,sine wave inverter but because the technical workmanship not up to standard in the industry, wind turbine inverter the early part of the project. 

"Zhu Gong Shan detained on the high energy consumption of polysilicon industry" hat "does not agree.

Before 2009, most domestic polysilicon enterprises energy consumption up to 200 kWh / kg or more, due to the tension between supply and demand in the market, the high cost of polysilicon can be sold for more than $ 300 / kg.

With the rise of China's polysilicon giant enterprises, changes in market supply, the price of polysilicon dropped to tens of dollars / kg, the high cost of polysilicon market competition eliminated.

Zhu Gong Shan, said the China Securities Journal reporter, polysilicon industry has great changes have occurred with the two or three years ago, now that the polysilicon overcapacity, which is inconsistent with the situation.

Polysilicon overall production capacity, low-cost production capacity.

 "Customs Statistics The data show that in 2012 China imported 82,000 tons of polysilicon actual polysilicon demand remains 50% dependent on imports.

Relative to conventional solar inverter, this solar cell can be free to bend, and thinner and lighter, the scope is wider than conventional solar cells

It is understood that, like this flexible thin-film solar cell will be the direction of future development of China's solar energy industry.

The Hina Shuangliu base, the official said, will make full use of the building stock huge carrier and electricity load, flexible film (solar) components can also be portable use, with communication equipment, clothing, tents, vehicles, etc. combination of mobile power.

 "He also pointed out that the components of the product mass production conversion efficiency up to 15.5%, a global leader level.

Shuangliu base global monomer production

Hina also announced that this year the the Shuangliu base production will reach 400MW, the output value exceeded 10 billion.

The mass production of a timely start the second phase and third-phase project.

 "It is understood that the total investment of 12 billion yuan, built in three phases.

All completed production capacity reached 1000MW, the annual sales income of 88 billion, bringing more than 5,000 jobs, and promote the development of other new energy related industries, is of great significance to promoting the development of China's new energy industry.

Two months ago, Hina successful acquisition of the world's leading manufacturers of CIGS thin film solar inverter  Mia-Solé, Hina thin film solar inverter capacity of more than U.S.

First Solar First Solar, the world's largest thin-film solar companies.

It is reported that the foreign advanced technology will be applied to the including Shuangliu base, including domestic photovoltaic industry base.

As of now, the the Hina Shuangliu base has basically completed the world's largest monomer production thin film solar cell production base.

Chengdu New Energy Forum 2009 successfully for the Hina Group and Chengdu matchmaking, opened the prelude to the cooperation.

 Through a series of independent innovation and technology mergers and acquisitions, Hina has become a large scale, thin film solar inverters leading global enterprises.

Hina recently announced, including the Shuangliu base, including all thin film solar inverters with an annual output can reach 3GW, to become the world's largest thin-film solar inverters companies.

"3GW concept is that every year new generation of about 40 million degrees, to be able to satisfy the residential electricity consumption of a city of 10 million people a year."

Thin film solar cell Shuangliu world's largest factory

3 years ago, Hina Holdings announced a major push into the thin film solar power inverter, followed by 12 billion yuan investment in the layout of the Chengdu Shuangliu start building the solar photovoltaic industry, R & D and manufacturing base.

 Chengdu Business Daily reporter learned yesterday,solar power inverter the the the Hina Holdings recently successful acquisition the MiaSolé company, overseas advanced technology will be applied to the including Shuangliu base, including domestic photovoltaic industry base,solar power inverter and promote the development of the domestic film solar industry. 

According to reports, the the Hina Shuangliu base built in three phases, one is already in operation is expected that this year's production will reach 400MW, the world's largest monomer production thin film solar cell production base has been basically completed.

In recent years, the Chengdu Shuangliu Southwest Airport Economic Development Zone as the main bearer of the new energy industry, functional area, has introduced 48 billion or more major projects Hina PV, Tianwei New Energy,solar grid tie inverter in Han electricity, Granville solar agreement with a total investment of 66.58 billion yuan, is expected to achieve annual sales income of more than 100 billion yuan in the next three to five years.

Solar cells can be bent

The contract settled Ribbon of new energy industry in Chengdu three years ago Hina Holdings, is currently the largest across hydropower,solar grid tie inverter and photovoltaic power generation private clean energy companies. 

Among them, silicon thin film solar cell project Hina Holdings Group in Chengdu R & D and manufacturing projects.

As of January this year, the Hina investment in Chengdu has more than 3.6 billion yuan.

In June 2011, a 300MW thin-film solar cells Hina Shuangliu base to start production, formally declared to the outside world to the advent of the first piece of the Hina Group thin-film solar cells.

The development of computer technology, the computer put forward green and green dc to ac inverter

Green computer refers to harmless to the environment, personal computers and related products green power refers to the green computer related efficiently save electricity power inverter , according to the U.S. environmental protection agency in l992 on June 17, "energy star" program, desktop personal computers or related peripheral equipment, the power consumption in the sleep state, if less than 30 watts, accord with the requirement of green computer, improve the efficiency of power inverter is the basic way to reduce power consumption.

Current efficiency is 75% of 200 w switching dc to ac inverter , power inverter itself consumes 50 watts of energy.

2.2 communication of high frequency switching power inverter

Telecommunication industry has been heavily promoted by the rapid development of the development of communication dc to ac inverter. 

High-frequency miniaturization of switch power inverter and its technology has become the mainstream of modern communication dc to ac inverter system. 

In the field of communication, often will be called a rectifier power inverter, and DC - DC (DC/DC) converter referred to as the secondary sine wave inverter .

A single-phase or three-phase ac power grid is the role of the power to transform the nominal value of 48 v dc dc to ac inverter. 

In SPC exchange with a sine wave inverter at present, the traditional phased type regulated sine wave inverter has replaced by the high frequency switching power inverter, high-frequency switching sine wave inverter (also known as switch mode rectifier SMR) by MOSFET and IGBT high frequency work, general control switch frequency in 50-100 KHZ range, to achieve high efficiency and miniaturization. 

Expands unceasingly in recent years, the power switch rectifier capacity, capacity of f from 48 v / 12.5 A 48 v / 20 A, extended to the 48 v / 200 A, 48 v / 400 A.

Because there are many types of integrated circuit used in communication equipment, the sine wave inverter voltage is also each are not identical, in the communication power inverter system with high power density of the high frequency DC - DC isolation power inverter module, from the middle busbar voltage (generally of 48 v DC) into the various DC voltages, it can greatly reduce the loss, convenient maintenance, and installation, increase is very convenient. 

Generally can be directly mounted on a standard control panel, the requirement for the secondary power inverter is a high power density.