Mechanical Seals Manufacturer In China

Chen-Ling Wang in 2008 Franklin Field official and alternative energy companies in Canada signed a joint venture relationship, obtained independently developed V5.0KW vertical wind turbines patent. Senior Rui Jin Ye told reporters, V5.0KW vertical wind generators can be assembled using a universal style of new technology, any state of wind, vertical wind generators can be used. At the same time, even in light wind conditions, vertical-type wind turbine has an internal battery assisted start capability.

Deserves attention is that there is no similar domestic and vertical-type small wind turbine production standards, the Chinese Mechanical Engineering Society Testing Center, said the future of the national standards will be the enterprise standard of the record field strength as a reference.

Ling Zhen Wang said V5.0KW vertical wind power generator is characterized by the largest independent mobile portable power generation system, designed and produced two field strength will be low speed for home use of vertical wind power generator.

Then a generator cost? A family a few years to recover the cost? With this general home users are most concerned about questions raised by wild enthusiasm. Rui said that the current R & D V5.0KW vertical wind power generator is mainly directed against the communications industry, road transportation, electricity and fresh mountain power, field work, design of border areas in these industries, the future they will focus on two production production 1KW, 1.5KW power smaller vertical wind turbines to meet the needs of the market vacancy.

According to reports, a low-power vertical-type wind turbine market position will be 3-5 million, General Villa Daily Energy Consumption in the 30-50 degree / day, 3 to 5 years will be as cost recovery. A vertical-type wind turbine service life of 30 years, lower maintenance costs during the period.

Recently, high-tech zones in the city of Tong Yu Yu Heavy Industry Co., Ltd. (hereinafter referred to as “General Yu Heavy”) project bases that support a group of hundreds of megawatts of wind power generator to prepare the factory spindle products are loading. “This year, we have successfully opened up the European high-end market.” Tong Yu-Sun Shuhai Heavy heavy equipment workshop director, said, “These high-power wind power spindle is designed for Spanish Kaemi Sa, GE and other U.S. customers order custom-made products. ”
It is understood that large-scale wind turbine spindle is the key system components, due to “high Strength” feature, known as “the heart of wind power”, its value-added components than large-scale equipment manufacturing nearly 2 percent, can be described as heavy “core.” Once the bottleneck due to heavy dependence on imported technology, “technology hollowing out” of a small wind turbines manufacturing industry in our pain.
In 2009, China ranked the world’s wind power installed capacity of the top three, but most companies do not have core technology and the role just as assembly plants including wind power spindle equipments including large-scale wind energy industries most heavily dependent on imports.
According to insiders, through self-developed margin Heavy 1.5 trillion -5 MW wind turbine main shaft has reached the international advanced level both at home became the first production of 3 MW or more axis of the enterprise.
Before finalizing the purchase agreement, GE had sent a special representative to visit the United States, on the selected materials, products strictly. It is understood that only the energy and materials sectors, Tung Yu Heavy fuel furnace heat treatment wind generators process for industrial use of natural gas to the thermal efficiency of 10%, the United States is very satisfied customers. Tong Yu GE Heavy thus successfully become a strategic partner the United States, for the wind power industry, “China chip” to open the European and American high-end market.

Recently, the Scottish researchers at Edinburgh University College of Engineering External released two C-GEN generators of the prototype. The latest research results will substantially increase the efficiency of wind turbines. The technology can enable a lightweight, direct-drive small wind turbine installations in the original alternative to the complex gearbox. In addition, the device technology is simple, wear-resistant, easy maintenance. According to reports, the new C-GEN technology allows direct drive 50% lighter than the original, since this will significantly reduce production and operating costs.
As countries committed to reducing greenhouse gas emissions, renewable energy sources are also becoming increasingly important. In the past 10 years, the world wind energy market to grow 28% a year, so sustained, rapid growth also shows the countries are to strengthen clean, pollution-free wind energy turbines in the active use.
Edinburgh College of Engineering participate in C-GEN technology research and development, Dr. Markus Mueller spoke: “The technology to improve the existing system, make it easier to wind generators manufacture and to reduce the system weight and cost.” Some experts believe that this technology will to make wind energy more affordable, efficient, and power enterprises to improve efficiency in the use of wind turbines, the technology eventually Samaranch reform the entire renewable energy industry’s potential.
President of the Scottish business incubator concept Eleanor Taylor said: “The development of new wind generators NGen Tec is a large accumulation of real wealth to Scotland, one of the outstanding models. Scottish business organization is seizing the unprecedented opportunity to deploy resources for the NGen Tec Corporation, wishing to build it for a significant Scottish influence on the economy of the company. “

“At present, China’s wind power turbines development much faster than expected, has entered the fast lane.” Wind power more than 20 years of experience in the Long Yuan Electric Power Group (hereinafter referred to as “Long Yuan Electric Power”), Chief Engineer, Xiao-Sheng Yang said that with the recent to a large number of wind turbine development, wind power has been shown to replace oil, coal and other fossil energy has great potential.
By the end of 2009, China’s wind power generator installed capacity in 4 consecutive years of growth to double, the first over Germany, ranked second in the world. “Great efforts to develop wind energy, not only is our response to the needs of global climate change, but also improve China’s energy structure and maintain the sustainable development of China’s energy industry needs.” Xiao-Sheng Yang said.
He said that the overall level of China’s wind power development with the world advanced level not very different. Seize a new wave of energy development, to gain the advantage in the international community demonstrated great power influence, China’s wind power in terms of responsibility practitioners.
Three major market opportunity
“Along with the rapid development of wind power industry, home wind turbines manufacturing industry has ushered in a rare development opportunity.” Xiao-Sheng Yang said, “If the goal of wind power installed capacity has been adjusted to ‘2020, 150 million kilowatts installed capacity’, that corresponding to the value of wind power equipment can reach about 750 billion yuan. ”
As he expected, the wind power market to attract this big cake, the resources have been transferred to the fan manufacturer. According to statistics, China’s wind turbine machine manufacturers have more than 80. Xiao-Sheng Yang believes that only through intense market competition, enterprises can accelerate the digestion and absorption of the advanced pace of wind energy technology, while encouraging continued research and innovation enterprise, manufacturing high quality fan.
He also thinks that the rapid development of wind power state for wind power technology in China and is also a rare opportunity for development. It is reported that since 2004, the state and the introduction of wind power businesses to invest in technology to carry out innovative research, and the acquisition cost of the test facility has more than 1 billion yuan, the current number of new scientific and technological achievements for the wind stream.
He also believes that wind energy technology should be at the current level of excellence, should be further strengthened basic research and materials technology research efforts to improve the quality and unit operation equipment availability, create and perfect with independent intellectual property rights brand unit.
In his view, the rapid development of China’s wind power challenges posed by the grid, actually facing the development of an excellent network opportunity. “150 million kilowatts of small wind turbines installed capacity, and finally issued by the power to conduct Absorptive and delivery to the user, which itself is a great opportunity.”
He believes that this is precisely the power to conduct large-scale development and the corresponding transformation of the perfect opportunity, “in the course of development of wind power, power grid construction will be enriched and strengthened to become involved in many business types, business has been expanded . can be expected in the future most likely benefit from grid enterprises. “Xiao-Sheng Yang said.
Face three major challenges
“Behind the rapid development of wind power, the same three issues deserve our attention.” Xiao-Sheng Yang respect, first of all power and wind power are not supporting the issue.
Most of China’s wind energy resources, distribution of points in the northwest, north, northeast and other regions, far from the eastern load centers. “Although the” Renewable Energy Law “provides that the acquisition of its power grid enterprises should cover the full range of renewable energy projects in the electricity grid and provide Internet services. But there are still difficulties currently running, sent by the constraints of wind power . ”
As Xiao-Sheng Yang said, now in Gansu, Inner Mongolia and other places, although some wind farms have been built, unit commissioning has been completed, but power was not complete in the strong seasonal wind, wind power can not be networked, fans had to stop or part of the shutdown.
“According to incomplete statistics, the major vertical wind turbines business in 2008 due to limited electrical power lost about 372 million kwh of electricity, in January 2009 to May lost about 615 million kwh of electricity. Second half of 2009 power loss even worse. power despite increased efforts to complete construction, but because of rising construction speed of wind power in general loss of power is increasing. “Xiao-Sheng Yang says.
Secondly, he thinks I made the quality of the wind turbine needs to be improved.
At present, the problem of poor quality of domestic equipment has been gradually exposed, “the two years in 2007,2008, our wind generators farm by domestic equipment deliveries are on time, not complete, unit commissioning a long time, tune out the crew pass Run assessment, fans and other items can not put into troubled time. Even if wind put into operation, there is also many times the quality and technical problems in leaf fracture, crack wheel, gear box failure, electrical failure, etc.. “In his view years, as less than the quality of mechanical equipment, failure of the high rate of real quality has not been fully exposed, the greater challenge is yet to come.
Finally, he considered relevant to the current field of wind energy regulations, policies, and industry services to be improved.
He said that although China has promulgated the “Renewable Energy Law”, but need refinement, need further provides that the parties wind power industrial chain of responsibility and obligation.
He also stressed that, although the Woguo on wind power design Zixunjigou, academic organizations, associations organizations, Xin Xi intermediary Renzhengshiyan Yijizhuanye Yunxingweixiu Deng Ye wind power service agencies have Jian Li, and play an increasingly important catalytic role but now all Tiji not perfect, the authority of the relevant services, coordination, and credibility are to be improved.

Denmark more than 5,000 wind turbines available is operating, some of these fans standing in the large-scale offshore wind farms, and some are located in the countryside.
Fan total installed capacity of 3100 MW, if the wind speed reached 10 meters per second, these fans of the electricity to meet peak periods of all households in Denmark, electricity consumption, that is, between the points at 5-7, great people in the preparation of dinner, the children watch television.
Do not stop at 20%, Denmark plans in 2013, the total installed capacity of wind power capacity increased by 40%, in 2025, half of Denmark’s electricity supply comes from wind energy.
“And the Chinese counterparts, the Danish wind power generator for troubled wind power to solve this problem, Denmark has been studied for over 20 years”, the Danish state-controlled energy group DONG Kund Pedersen, vice president of introduction.
“Solve the secret of wind power in fact more than one”, the Danish National Grid Company’s strategic planning director Dorothy Winn Joseph explained.
Joseph Wen said, to make wind power grid network and to ensure good operation condition is very much needed. Including the power grid construction, planning, accurate wind forecasts, in the absence of sufficient time to use wind power reserve resources, benign electricity market, supply and demand balance of buyers and sellers, but consumers must also bullish on wind power electricity.
Denmark’s strong smart grid
On the wind the story of how the grid should start from a strong intelligence network. Denmark’s strong and smart grid from Denmark, the Danish electricity network operator National Grid company began.
In 1998, the Danish government to the power system and the development of renewable energy business entrusted to the electricity network operators – the western and eastern ELKRAFT ELTRA Inc. company. In 2004, the two companies merged to become today’s Danish national grid.
90 years of the 20th century, the first large-scale wind generator grid, the same power transmission system to bring Denmark a lot of pressure. Timely realization of the European Union made a final free trade within the EU electricity market directive for the lifting of the state toward power generation and transmission barriers.
Danish National Grid electricity market, the vice director Lai Nasuo that said, “In order to ensure the effective use of wind, must have the ability to transport power across Europe much-needed electricity to the local. This is why the Danish State Grid Corporation of spending hundreds of millions each year Crown, for the expansion and strengthening of the Danish power grid construction and other links between the national grid (1 Danish krone about 1.14 yuan). ”
Lai Nuosuo that National Grid companies in Denmark for renewable energy and wind  power generation, “To accomplish this task, we must use a strong planning, such as the assessment of wind field grid location and laying of the new estimate.”
In addition, no backup power when the wind is also very important, coal-fired power generation is an option, while Norway’s water and electricity are also good choices.
When the weather is changeable, the Danish national fan power output may be within a few hours to rise from 0 to 3100 MW from 3100 MW may be down to 0.
Denmark State Grid Corporation of power system development, the vice director Peter Jorgensen explained: “Denmark’s geographical position is superior, north of hydropower stations, thermal power plant south. Therefore, when the wind is not enough, we can from Norway the introduction of clean water. but in the summer, when the thermoelectric power plant refinery does not require as much as the winter as supplies of electricity and heat, the Danish are often imported from the Norwegian Water. ”
This power is often sent each other a year, the Danish import and export of electricity to the country’s total electricity consumption equivalent to 30%.
This strong reliance on each other to send the same power and transnational power grid in Denmark.
Power to the Nordic countries Denmark and Europe, linking a strong European power system is large-scale renewable energy grid and optimize the existing network premise. As early as 1965, the Danish island of Jutland and the Swedish cable has been linked in the 70’s, Denmark and Norway, to connect the cables.
24 day price system
Strong smart grid, the Danish grid also rely heavily on large-scale wind power turbines in electricity prices led and flexible pricing system.
“Danish green power grid to take the principle of priority and network. Wind power market, the price is set to the lowest price. Wind power supply fluctuates with weather changes, so other types of energy to generate electricity prices must fluctuate”, DONG company Kund Pedersen, vice president, said.
The direct benefits of this policy is power – the Nordic Power Exchange Center Marketing Director  said, “This market model forced other electricity suppliers will only really profitable when power generation, to ensure users in Denmark to the most environmentally friendly electricity. “The trading center is responsible for power trading between the Nordic countries.
In Denmark, the price of wind power for the grid is very sensitive to any changes in electricity grid will lead to price rise or fall.
Danish State Grid Corporation of total dispatcher  Anderson said that the Danish electricity supply law, must give priority to renewable energy generation into the grid, because the marginal cost of wind power is very low, the price of wind power is basically the market minimum price.
Every day, the Nordic Power Exchange Center to be the next 24 hours under the power supply and demand projections, given the power by hour offer. When windmill  power exceeds the Danish electricity demand, market price will drop, and when the overall electricity generating capacity over time, the final settlement price may fall below zero. However, this zero-price wind power will only appear in the transport to the grid operator, the user must pay a variety and environment-related taxes, equivalent to approximately three-quarters of the total tariff.
1 or 2 times a year, the Danish wind power generation capacity will exceed its customers needs, this time the Danish power companies must quickly identify the most expensive in Europe where the price and the electricity sent here.
In addition, the Nordic electricity market has also introduced a negative tariff system means that when the electricity market is saturated, the electricity supplier if you want to generate electricity, also have to pay. The system is designed to urge the power plant in time to stop power generation, power supply and demand balance to reduce the maintenance work.
“In principle, the Nordic power system can achieve a balanced trade. This is the market mechanism: We have extra fat, buy cheap electricity, but high prices of electricity sold to local needs.”
Once the strong westerly wind, electricity trading center in the Nordic electricity prices have plummeted – this time, the Danish wind turbines are operating at full capacity 5200 running at full speed, wind power 3100 MW of peak power, and we all got off work .
Can measure the electricity consumption and electricity generation
Denmark’s electricity policy also requires a technology to ensure that – can predict the electricity consumption and wind power generation.
The reality is, the Danish National Grid can really predict the average Danish electricity consumption. The total Danish electricity consumption statistics have been accurate to date and hour, giving the control center staff was of great help.
As for the wind speed forecast, an old Chinese saying, “Accidents will happen” – Danish National Grid Control Centre’s main task is to monitor and forecast wind speed is fully consistent with, but it is still ideal.
So when the wind speed at 5 meters per second to between 15 meters per second, the wind speed changes of 1 meter per second, changes in the Danish power grid electrical power stroke will reach 350 MW. Control center staff must always be concerned about the fan capacity. Once the power of more than forecast, to be immediately adjusted.
The system’s advanced network control center can help the daily work of staff, and wind power plants and through the network at any time to read the data, wind data can be updated in real time to fluctuations in the power generation control can deal with range.
Technically, to solve the problem of small wind turbines fluctuations, the control center staff mediation mainly two ways up and down, similar to the car’s throttle and brake the two movements, a number of plants used for throttle, some power plants as a brake. Typically, a day of wind power fluctuations can reach 50 times, which poses a challenge to the dispatcher.
When all those involved in the Nordic electricity market, power plants are in normal operation, the 34-screen data tell the dispatcher that they can be in Denmark, Germany, Norway and Sweden, where “brake” and “step on the gas” – to call plant shows a certain period of time to allow the additional power and corresponding price. Once the power output more than expected, the dispatcher must immediately inform the plant to stop super-fat.
Danish National Grid Company intends to further expand the network interconnection between countries is not confined to national power grids.
Some European countries also suffer from power transmission problem, which makes the European wind power Yanjiu project has 13 European members, the system Fenxi Shi  said, “If the Danish network to achieve 50% power to from renewable energy sources, all systems have to collaborate together. ”
Be achieved if the European Union by 2020 renewable energy consumption accounted for 20% of the target, all countries must accept the conditions of interconnection in cooperation.
In renewable energy, Denmark also more ambitious, “We must play a greater role in wind power, such as for transportation, electric vehicles, building heating and so on. We have to integrate the power system, more development of wind power use “, DONG Kund Pedersen, vice president, said.
An ideal scenario is that the strong wind, the Danish wind turbine generator to the optical transmission developed in Spain, while Spain will give the sun’s light to no wind in Denmark.

Shanghai Donghai Bridge 100 MW offshore wind generators demonstration project is Asia’s largest offshore wind farm, China’s first large offshore wind power generator project, the investor was told that the project will be mid-year, full grid. The project of 34 wind generators all use our own research and development, currently the largest single power of 3 MW offshore wind turbine model, each giant “big windmill” tube tower 92 meters high, almost 30 storeys high, leaves 45 meters long. The total investment 2.365 billion yuan.

Hundreds of kilometers away from Beijing in the major wind farms in Inner Mongolia, a large number of wind turbines are in operation, despite the north wind whistling away.
“The worst time, hundreds of wind turbines are stopped, leaving only one or two operations, to ensure that wind power itself.” Huadian Huitengxile Wind Farm Safety Minister Liang Zhenfei on the “first Financial Daily “said.
Huitengxile wind farm wind power generator given to uniform delivery to the West Inner Mongolia Power Grid, and then sold through the West Inner Mongolia Power Grid.
“The poor West Inner Mongolia Power Grid sending channel, the winter wind power output Mengxi night only guarantee 500 thousand kilowatts, the wind jumped up 2.9 million kilowatts.” Inner Mongolia Electric Power (Group) Co., Ltd general manager Zhang Fusheng frustration.
This situation has not changed.
June 10, the National Development and Reform Commission held a “National Power in 2010 teleconference summer peaks,” said the news came this summer, north, east and south balance the tight power, peak power limit of the possible existence of .
Party is without electricity, the other is the large number of abandoned power. Not much room in the area, the emergence of power between supply and demand, and between old and new energy conflict between the different systems and collision.
“Wind Power of the Three Gorges” crisis
According to National Energy Board’s planning, in recent years, plans to build more than 10 provinces and Inner Mongolia million-kilowatt wind power base of seven million kilowatts and wind power base, the formation of a “wind of the Three Gorges”, 2020 style power construction scale more than 100 million kilowatts.
China Renewable Energy Association figures released by the Committee, Inner Mongolia, wind energy resource technology development capacity of more than 150 million kilowatts, accounting for land-based wind energy resource reserves more than 50%. In 2009, wind energy resources in Inner Mongolia and net installed capacity of wind power are ranked first in the country.
But there is another embarrassing figures: As the wind power output is limited access and the bottleneck problem, a large number of fans in the bottom of a large number of abandoned wind power. Year, wind power companies should give up power generation total about 1 / 3.
Developers of wind power turbines in Inner Mongolia’s predicament, clearly indicates the rapid development of wind power development has been facing severe crisis.
China Guangdong Nuclear Wind Power Company Chairman, President Chen then had bluntly said: “We invest 60% of wind power in Inner Mongolia, Inner Mongolia, but the most severe power rationing, sending the most difficult, the company’s installed capacity of 850,000 kilowatts no benefit at all! ”
A survey shows that currently invest in wind power in Inner Mongolia, more than 60 companies, each company is on the transmission capacity of wind power generators constraints worried.
Inner Mongolia Wind Power Why not send? Inner Mongolia Electric Power Corporation in an interview with reporters learned that West Inner Mongolia currently has two 500 kV power grid “network on the net” to the East North China Electric Power Corridor, transmission capacity although 4.3 million kilowatts, but the peak of 3.9 million kilowatts transportation plan, only low 2.5 million kilowatts, resulting in a lot of electricity installed capacity of wind power output is limited in particular.
Last year, the National Energy Board after investigation, issued a “National Energy Board on the strengthening of the North China Power Grid and the joint operation of the West Inner Mongolia Power Grid,” which called to improve the existing North West Inner Mongolia Power Grid transmission lines to the low period of transmission capacity and ensure that 2.5 million kilowatts, and strive to reach 300 million kilowatts.
But as far as Inner Mongolia Electric Power Corporation to reflect the new policy introduced two months, the actual average increase of only sending capacity is about 300,000 kilowatts, the wind jumped up to 2.9 million kilowatts.
“Tap domestic demand,” the dilemma
Inner Mongolia Electric Power company said, despite the Inner Mongolia Electric Power Company has to make every effort to accept large-capacity wind generators, but by itself can not solve the problem. Statistics show that by the end of 2009, Inner Mongolia Power Grid heating unit to reach 12 million kilowatts of wind power capacity has more than 4.3 million kilowatts, wind power can not meet the requirements of full access.
Currently, the largest wind power installed capacity of power account for 27% of electricity load has far exceeded the capacity of Inner Mongolia Power Grid (China’s Inner Mongolia Power Grid Power Research Institute demonstrated the capacity of wind power 8% to 10%).
According to report, Inner Mongolia, its power consumption small. Recently, the state has energy-saving environmental protection, and restrictions on suppressing the policy of high energy consumption industries, Inner Mongolia and in the construction of the proposed high-energy power projects stopped and electricity projects have been completed and a large number of stop production, demand not.
In 2008, the Inner Mongolia Autonomous Region has been trying to support a number of comprehensive utilization of resources, such as starting aluminum, PVC production pulling power consumption, but also facing environmental pressures.
Inner Mongolia Electric Power Science Research Institute, said security in all, by the power market in power transmission from space and from lack of access, Inner Mongolia, a newly developed wind power projects can only be limited in the area of electricity market squeeze the market share of thermal power units, caused a large number of idle thermal power equipment, thermal power enterprises operating difficulties, losses.
State Power Corporation of Inner Mongolia Long Yuan Qi, general manager of office shortly before the next life also told the media that the company Wulanchabu grassland in Inner Mongolia’s wind farms, “there is no power to send, there is not a high spirit, the night last winter abandoned wind down particularly serious, direct economic losses have reached 80 million yuan. ”
Temporary phenomenon?
Although Inner Mongolia thermal power, small wind turbines exists between each squeeze of sharp contradictions, but the reporter an interview in Inner Mongolia, local government officials, power developers and experts do not believe that is the sin of excessive growth of wind power.
Inner Mongolia Autonomous Region Director of State-owned Assets Supervision and Administration Commission, and that the Soviet Union: “should not be used ‘disorder’ to evaluate or negative wind power development.”
He said the National Energy Board approved the base for the planning of wind power in Inner Mongolia, has built 66 wind farms, there are 40 in the pipeline. At present, Inner Mongolia has been put into operation and under construction wind power project, through the formal approval process, most of the state franchise tender the project in line with national industrial policy.
“If China’s energy conservation to the international community’s commitment to standards, wind power development is not fast, but should be faster!” Su said, the current problem is the building of the grid send too slow. Passage West Inner Mongolia Power Grid Delivery not pushed back year after year.
Fu-Sheng Zhang also told reporters, according to Inner Mongolia, wind power currently accepted ratio of more than 20% of the reality, according to the country’s highest power load of 15% of the conservatively estimated that the admissibility of the national grid by 2015 wind turbine generator capacity of 150 million kilowatts ( 368 billion kwh in electricity, saving about 280 million tons of coal, equivalent to 78,000 train coal train’s capacity).
“As long as the wind settled and outgoing wire transfers collection problems, elimination on a national scale wind power, ‘12 5′ end, Inner Mongolia, wind power installed capacity will reach 30 million kilowatts.” Zhang Fusheng said.
But Mongolia Electric Delivery expansion, the State Grid seems little interest. Industry analysis, because not part of Inner Mongolia Power Grid under the jurisdiction of the national grid. Sources said that National Grid has many contacts with the Inner Mongolia Electric Power Corporation, hopes the latter into its unified management. But the Inner Mongolia area and do not want.
Wind power expert, Long Yuan Electric Power Group Chief Engineer, Xiao-Sheng Yang told this newspaper that the Internet is difficult wind power wind power industry may be a temporary phenomenon early. With the acceleration of grid construction and the state policy of gradual implementation of new energy, wind power business development will gradually resolve the difficulties.
As the hours of wind energy in Inner Mongolia, wind power costs less than 0.46 yuan full / kWh (south thermal power electricity price more than 0.52 yuan / kWh), together with carbon trading, wind power is about 0.1 yuan per kilowatt-hour availability compensation, wind power companies are still the future with great hope.
Reporter from the Inner Mongolia Electric Power Company, Inner Mongolia area are trying to clear the channel for delivery of wind power. According to wind power thermal power ratio of 1:2, to the transmission channel configuration of wind power to form a “wind, fire, Strapping” send mode.
Inner Mongolia Electric Power Company said the increase after the introduction of wind power in Inner Mongolia Power Grid capacity of 4.8 million kilowatts sent annually send about 13 billion kwh of wind power capacity. “If the North East to send the electricity to maintain 3.9 million kilowatts day and night all over, we can guarantee that wind power does not give up after the night wind.” Zhang Fusheng said.
The afternoon of June 3, Inner Mongolia Yin North vein endless grassland, flocks of sheep on the hillside, lake pond grass.
In their side and overhead, are tall, they are more numerous than the wind generators. Huge fan straight sweep the sky, see people dizzy.
Here is the Asia’s largest wind farm – Huitengxile wind farm.
Located in the Inner Mongolian Plateau, is also a vent, its name in Chinese means “cold ridge.” Can be seen here, rich in wind resources.
In 1996, construction of wind farms here. According to the plan, where to build a million-kilowatt wind power base. At present, there have been Huaneng, Datang, Huadian, North, Beijing can, in the Canton of 7 nuclear presence of large state-owned enterprises, the total installed capacity of more than 100 million kilowatts.
“If all the running, the electricity generated each year in 300 million degrees.” Huitengxile North United Power wind farm, said head of the farm Zhi.
Li Zhi in the wind farm has been done for 14 years, he was responsible for management, including 12 kinds of models with 132 wind turbines and two substations. “First Financial Daily” reporters, when the aerial of the mobile phone is always ringing off the hook, and he commanded the men each time, what materials to use to repair parts which can be more than save some money down.
“No Do not do that. Once the limit of electricity has been cut away the net profit ah.” He said that because of limited power, this family tradition electric field on the loss of nearly 400 million profit.
“A few years ago has been good, limited power is not obvious.” Zhi told reporters, before 2008, Huitengxile wind power companies only 5 family tradition, the scale is also not very high. But two years ago and last year, wind power scale soaring. Today, seven companies are scaling up, “the speed of wind power expansion has far exceeded the speed of power grids.” He said.
Outstanding issues every year. Each year in October to the second year in April, a full six months, Zhi hearts are tugging. He said: “The fear is that the dispatch room the night before the power company sent a text message. Text messages telling me how much power the next day to allow delivery. This year, limit such messages more and more power. Restrictions on electricity up to the time is a kilowatt not let you send. ”
This family tradition Zhi management field and other different. 132 wind turbines, some use of a longer time, are already aging and damage. “In winter, in temperatures of minus 40 degrees, the stop loss is very great.” Zhi told reporters, “If the limit of power 5 hours, the old machine stopped, and then spend 78 hours may have not start up.”
Family tradition in this field reporter dispatch room of the table to see a piece of paper that said more than a dozen stations have been number of wind turbines can not stop. “Can not stop, and basically that old machine.” Dispatchers said.
Huadian Huitengxile Wind Farm Safety Minister Liang Zhenfei too bad the same day. He told reporters that the task based power generation target assigned every year, and even that the average utilization of wind turbines can not be less than 97%.
This allows Liang Zhenfei very difficult, after all, is not how much power he made the decision – the decision to God how much wind, how much electricity the power company decided to send, and he can do is to safeguard the 120 “big windmill.”
As the Inner Mongolia Electric Power (Group) Co., Ltd general manager only a year, Zhang Fusheng very anxious. He wanted to get bigger and wind power in Inner Mongolia. After all, this is called “wind of the Three Gorges” and the most famous wind power base in China wind generators . But every day, every year a large number of wind power are “rotten” at home.
“You call me about you?” Zhang Fusheng slightly begging to come to an interview on the “First Financial Daily” reporters, “let a few of wind power in Inner Mongolia and more outgoing channel it.” He said: ” As long as there is access, I can Paizhaoxiongfu guarantee of Inner Mongolia Wind Power consumption next year, more than Spain, three years after the Danish wind power will reach the highest level of power generation, and now I can only say in this empty talk. ”
First Financial Daily: power construction in Inner Mongolia in the country in what the current level?
Zhang Fusheng: Inner Mongolia is the country’s major bases of energy and power output in the national energy development and energy savings strategy plays a decisive role. Adjacent to the North, Northeast and Northwest Power Grid’s load center, the national implementation of renewable energy development plan, to achieve the strategic objectives of energy saving, development and construction of 10 million kilowatts-class large-scale wind power base important areas. As of the end of 2009, the region of the total electricity installed capacity of 54.07 million kilowatts, ranking the fourth place; wind power installed capacity of 5.03 million kilowatts, ranking first in the country.
Daily: Before we come to hear that the fourth quarter in West Inner Mongolia Power Grid in 2009 wind power generation amount to 2.47 billion kwh, accounting for 8.2% of Internet network capacity. The first quarter of this year to 7.7% in April to 10.2%. Why wind power in West Inner Mongolia Power Grid such a high proportion accounted for?
Zhang Fusheng: According to the national renewable energy development planning and development and construction of 10 million kilowatts-level requirements of large-scale wind power base in recent years, West Inner Mongolia Power Grid on wind power and solar and other renewable energy projects to support, not only the full acquisition of wind power company Internet access charge, for the acceptance of wind power, solar energy and other new energy projects, has invested 3.14 billion yuan and the transformation of a large number of new transmission facilities. To meet the future development and utilization of new energy, but also planning grid of 3.2 billion construction project in 2010 and 2015 coming on stream.
2010, West Inner Mongolia Power Grid under pressure early in the heating to stop the end of 2 million kilowatts of heating unit, fully support the local wind turbine online. In 2009, West Inner Mongolia Power Wind Power consumption 6.063 billion kwh, up 158%, saving 2.3 million tons of standard coal. From January to April this year, West Inner Mongolia Power Wind Power generator completed 3.47 billion kwh electricity, saving 1.32 million tonnes of coal equivalent. Inner Mongolia Power Grid in 2010 is expected to wind power generation amount to more than 12 billion kwh, equivalent to 4.2 million tons of standard coal.
Daily News: The idea that acceptance of wind power capacity ratio should not exceed 5%, otherwise to the grid stability and reliability of an impact. Is that true?
Zhang Fusheng: First of all it should be noted that the 5% did not specify a volume ratio, or power output than the ratio. Denmark and other countries the proportion of wind power capacity Absorptive Bi Mengxi power grid, it is because it is subject to end power, wind power made more on the European power grid, electricity supply shortage from the European grid.
Fourth quarter of 2009, the total supply of wind power in West Inner Mongolia Power Grid electricity accounted for 8.1%. January 2010 to protect heating, wind power night after a large number of limit fat consumption is still up 7.7%, 12% of the world’s highest standards. April 8, West Inner Mongolia Power Grid wind power accounted for on the Internet to create online network capacity ratio of 18.7% of the highest level. I expect, if not abandoned the wind, this wind power generation amount in West Inner Mongolia Power Grid up 10%. If you send channel to solve the problem of wind power will more than 12%. So no matter which indicator of comparison, wind power can not exceed 5% of this argument is untenable.
Inner Mongolia to accept such a windy electricity, industry professionals are more worried, but now we can tell you that 27% of the time to wind power companies during the day can still do not give up the wind, this data into Inner Mongolia Power Grid company patents. We have to make every effort to implement the Renewable Energy Law, the patent dedicated to the state, provinces and cities nationwide are free to use any.
Daily News: Inner Mongolia Wind Power Delivery in the Internet and there are still great difficulties and problems. How to solve this problem?
Zhang Fusheng: Yes. As the wind power output is limited access and the “bottleneck” problem, low power consumption of a large number of fans in the large number of “abandoned the wind.”
Although the installed capacity of wind power in Inner Mongolia over the maximum power load of 29%, we have optimized scheduling, daytime wind power are able to run at full capacity, but to the rest of the night trough, in order to ensure urban heating, wind power forced to “abandon the wind” measures. Abandoned after the night the wind reached 1.5 to 2.9 million kilowatts, the wind is not only a serious waste of resources, but also wind power company suffered huge economic losses. Some wind power company, complained that: Why energy saving Tiantian Han, Inner Mongolia Wind Power have to every night, “weep”?
Inner Mongolia’s wind energy resources are valuable national resources, Inner Mongolia’s “wind of the Three Gorges” of the National People’s “wind of the Three Gorges.” Wind power wind power development is not just the responsibility of rich provinces, to achieve inter-provincial, regional, national electricity market acceptance in the overall planning of wind power. 10 years ago, in planning the construction of the Three Gorges hydropower station at the same time, advance to the provincial distribution of electricity indicators, early planning and design channel sent only to ensure the reliability of the Three Gorges Hydropower Station sent. My view, the development of wind power in Inner Mongolia can also refer to this approach.

Rows of windmills, turn to fairy-tale kingdom. June 26 afternoon, the Chinese – the outcome of the Government of Denmark wind energy development conference and the “wind power into the campus – Wind Power generator Knowledge Network Competition” prize presentation ceremony into the Hall of zero carbon. Danish Ambassador Counselor Cohen briefed the general situation of the project, and the Imagination of wind power in the future role of city life.

The Danish wind energy development in the site selection results conference hall in the zero-carbon, Cohen said the project’s purpose and concept of zero carbon coincides with the museum environment. Zero Carbon Museum in specific operational feasibility and demonstration of high significance. While zero carbon Museum, participants can experience the green lifestyle and philosophy, advocating green low-carbon life, and participate in them to.

Shanghai World Expo 2010 theme of the city to make life better, carbon is also advocated by the World Expo concept and practice of green living. In the Cohen opinion, the future of wind energy projects and the healthy development of the city of great relevance. “When I see a city when it is not isolated, but with the surrounding food system, water system linked to. Wind energy projects producing electricity for the urban, the urban transport ‘blood’. In the case of global climate warming , the recent natural disasters, such as Sichuan, the drought and so on irrational use of natural resources and human. only the scientific use of human nature in order to reduce the disaster, to let the city breathe more fresh air, city life can be more beautiful. ”

In Denmark, wind power generation project is a complete walk the road of commercialization: the basis of the availability of technical conditions, the project will be based on market demand and site conditions, while the interest groups with relevant full range of communication, and ultimately decided the project implemented or not. In laymen’s terms, small wind turbines installed are very convenient, but also with visual beauty. So the future of small wind turbine power generation project will become a Sino-Danish cooperation in the field it? In this regard, Cohen explained, “because the reasons for climate and environment in China, only a few points may Anzhuang windmill, so the market is very small, while small-scale wind turbine generating capacity also very limited, small-scale wind turbines will not be the future of Dan wind energy development projects. “comparison,” a large windmill to windmill power generation is the future trend of internationalization, but also commercial power thing. “Cohen added that the current development of large wind power projects, mainly based on macro-state solution energy crisis, so it is very urgent and important.

China – the Danish government to wind energy development projects (referred to as WED) is the two governments of China and Denmark in the field of renewable energy technical assistance projects. The project began in 2006, 2010. Cooperation, the two sides on the four sub-projects have made significant achievements, including wind resource assessment, wind farm planning and post-assessment, wind turbines manufactuer research, and advocacy training projects promotion.

Wind power generator projects in full preparation, while Fujian Electric Power also invested heavily in wind turbine manufacturing investment base project. Allegedly, the project will introduce international advanced level of direct drive Daxing offshore wind power equipments technology to fill the Fujian Province in large Fengji wind generators manufacturing fields blank and promote wind power industry chain extension.
After completion of the project will be the biggest fan Hercynian manufacturing base. Under the strategic cooperation agreement, the project plans to build fan base in manufacturing at least one assembly plant and a fan factory, the main production apply to terrestrial, coastal, offshore wind farms of large offshore wind equipment, designed to reach one million kilowatts in wind power machine’s production capacity, estimated initial investment of 800 million yuan. Fan manufacturing base project will be based in Fujian, the whole country, through the introduction of advanced two-megawatt turbines and larger wind turbine generator manufacturing technology, production settled Ningde sales.
But industry analysts also noted that while offshore wind power has a higher than land-based wind power technical barriers, less competitive, get better profits. But the short term, the development of offshore wind power on a limited positive effect on the performance of listed companies.

In 2010, offshore wind power as a prelude to the start of the concession tender officially opened. Although offshore wind power has a good wind resources, coastal network architecture is superior, the advantages of close to load centers, but its risks can not be ignored. Compared to wind farm developers, equipment manufacturers and other interested parties, the more directly bear these risks. China Guangdong Nuclear Wind Power Assistant General Manager Lu Hao said: “The offshore wind power development with high-risk, and advanced character.”

The high cost of long processing time and

China’s offshore wind generators resources such as wind power surveys for approval by the Shuiguizongyuan, understand Shuiguizongyuan very strict examination and approval. Marine environmental assessment and preparation of the report and assessment route longer time. General approval from the wind to the sea project a reasonable time was 2.5 years, longer than the land-based projects. In addition, the sea-front costs of developing wind power is wind power generator on land about 10 times.

Fan high price, design experience less

Although the major wind turbine manufacturers competing to develop offshore wind turbines, but the real volume manufacturers can rarely, less than the demand for short-term memory in the case, there is little room developers keep the prices down. Technically the fan, fan manufacturers to take part of the system Guonei pickled I design principles, in order to improve the offshore wind turbine reliability and availability, but may increase the device cost. Add twice the equipment cost is still in a high level.

In the design of wind farms, offshore wind power generator currently have some experience of the Design Institute designed little competition, inadequate design of high cost. Design costs as the proportion of small, risk is relatively small, design experience are a major risk.

Multiple risks faced by construction

Wind from the currently available data, China’s annual 50-meter-high coastal wind speeds ≥ 8m / s wind speed time to account for 40%, ≥ 10m / s wind speed accounted for 20% of the time, showing that construction of wind on the sea have a certain impact.

It is understood that whole sea area north of the Yangtze Estuary can work for about 1/3-1/2. Generated in the Western Pacific, 29 tropical cyclones each year, of which can affect tropical cyclones north of the Yangtze Estuary annual average of 3.1, up to up to 7 years (1990), at least 1 year only. 1949-2007 years, a positive landing north of the Yangtze Estuary were 5 times (2%). Waters north of the Yangtze Estuary can be seen every year by the impact caused by the typhoon, but are less opportunities for attacks.

As the domestic manufacturers and construction unit fans lack experience in building offshore wind, the early construction, construction progress will be slower, but with the progress of the project, with the maturity of various types of work, progress will accelerate gradually. But in general there is the potential risk of contractor delays.

It is understood that China is still not suitable for lifting of the special vessels at sea fans. Construction of multi-base can be installed more domestic vessels, but can be more than 5 meters in diameter pile foundation construction of the vessel less. East China Sea Bridge, a similar scheme can, with the overall lifting capacity floating crane lifting all boats, 20 domestic, but most of lifting height is not enough. Shows that if large-scale offshore wind power development, the lack of construction of the ship’s problem is quite serious.

Wind farm operation and maintenance risks

Ease of maintenance point of arrival mainly by the weather, sea state, distance and transportation decisions. Distance offshore wind farm, the general 10-50 kilometers offshore. In addition to fans of quality, high reliability requirements other than necessary maintenance is essential. Currently abroad, offshore wind generator farm maintenance overhaul the means of transport are boats and helicopters. The two modes of transport by the weather, great influence on sea conditions.

Availability from the fans point of view, the fans in terms of land, offshore wind turbines require higher reliability, learned from the current situation, offshore wind turbine availability is generally low.

Submarine cable is the problem can not be ignored, it is known, the domestic 35KV and 110KV submarine cable technology is more mature and complex. But can not produce 220KV submarine cable. The cost is land Submarine cables 5-10 times the risk of injury exist anchors. Relatively strong coastal grid structure, but involves offshore wind farm in the local network is also weak, according to a potential reason as rife electric grid can not run the risk of full power.

Offshore small  wind turbine tower tube for years by the invasion of sea salt, the corrosion rate faster than the terrestrial environment, in addition to the tower tube manufacture in strict accordance with the requirements of anti-corrosion coating, regularly checked to maintain the tower tube. As the fan base is located in the seabed, seabed local shape changes in the wave, tidal and ocean current role of seafloor topography in sports, on the basis of the stability of a great impact, sometimes endangering the safety fan. While taking fully into account in the design of ocean currents, waves, tidal effects on the basis, but fans running, the fan base should be regularly diving observations and maintenance.

Internet Risk

State has not developed a unified electricity price of wind turbine generator at sea, while the electricity price is indeed a major source of income developers get clear and reasonable electricity price allows developers to formulate investment and financing plans.

In addition, the coastal areas although high levels of network structure, but involves the Internet for offshore wind power shortage still exists, grid companies involved in offshore wind power development in the responsibility should be strengthened.