Tag Archives: solar water heater manufacturers

Bottleneck leading to the development of solar water heater technology lag

[REVIEW] as a typical representative of a low carbon economy of the solar industry has become a recently concluded National "" hot topic, concern is that many traditional vacuum tube solar domestic enterprises have begun to quietly test the level of solar panels. The industry believes that, with the constant breakthroughs in key technologies, and building integrated solar domestic growing trend, was vacuum "suppressed" years of flat panel solar water heater is expected to usher in 2010, turning over the years.

    As a typical representative of low-carbon economy of the solar industry has become a recently concluded National "" hot topic, concern is that many traditional vacuum tube solar domestic enterprises have begun to quietly test the level of solar panels. The industry believes that, with the constant breakthroughs in key technologies, and building integrated solar domestic growing trend, was vacuum "suppressed" years of flat panel solar water heater is expected to usher in 2010, turning over the years.

    Technological bottleneck led to the development lag

    It is reported that in the early 1980s, Yunnan, Guangdong and some enterprises have also introduced a flat solar products of foreign technology in the domestic production for sale. However, because these products are technically flat-defective, low quality, service and keep up with the late, large number of products on this "rotten" in the roof. It is also because of antifreeze, pressure and other key technical limitations, when the flat-plate solar water heater is only suitable for areas with better use of the environment, which also caused the company stick to the southern market, the marketing concept, not product innovation, market development inner power.

    Trapped in the technical defects, quality problems and the use of time constraints and other factors, and Qinghua Sun, Temple, Emperor Ming, Li Norit, a large number of domestic solar water heater leader, are vacuum tube collector based products, which making the tube quickly captured the vast majority of domestic market share.

    Beijing Solar Energy Research Institute of the original hope was that the Yangtze River, there are two major reasons for the flat plate solar water heaters in the country left out: First, China s solar water heater, whether domestic or collective use of the system (hot water works), has been used direct heating solar collectors heat water in the traditional way, flat plate solar collectors in the water to freeze not only affects the normal operation of the collector, and the tube leading to the split up. The vacuum tube solar water heater for the winter the water in case of not emptying the basic non-frozen or not frozen (special circumstances such as snow, cold may also be frozen), so by the market. Followed by the all-glass vacuum tube water heater production costs nearly 10 years significantly reduced. All-glass vacuum tube was reduced by 5 times, more than twice the lower tank. At the same time the production of flat plate solar collectors are not much lower cost.

    Hu Guang-liang, chairman of Five Star Solar Energy Co., frankly, from the market in terms of applications and service objects, flat plate solar collectors used in large-scale projects an advantage; for household products, the domestic household products are generally direct heating, indirect heating applications small, flat-plate collector antifreeze higher prices, coupled with flat-plate in the home, the size range of options too, so the impact of the flat-plate collector on the market to promote speed.

    Key technologies to be improved

    The industry believes that, in the vacuum tube solar water heater popular, flat as a second-generation product technical defects do exist. "Over the last 10 years without significant progress, a considerable part of the product performance and quality is not satisfactory, basically still at the level of the 1980s." Engineer of Beijing Solar Energy Research Institute in Ho Chi said.

    He Zinian that although China has developed a solar water heating systems for domestic national standards and technical conditions of the 1990s, also amended the relevant conditions for flat plate solar collector technology, national standards, but with the corresponding international standard or European standard contrast , there are still a large gap.

    A home plate solar water heater business executives recognize that China flat water heater and one in the gap between the foreign absorbing coating, the second is in the control system, the third time in terms of solar efficiency.

    Industry experts point of view is more consistent, flat water heater is the biggest technical problem antifreeze, which is affecting the area north of the Yellow River, especially in cold regions of the deadly bottleneck. In this regard, Jiang Xi was said that in the region below zero winter weather conditions, be sure to use antifreeze, water, secondary heat exchanger, "European household and collective use of the system (water works) is used in antifreeze pump drive plate solar collectors and thermal storage tank to cycle heat exchanger, which can be a fundamental solution of flat plate solar collectors and collectors of water frozen freeze problem, but a fundamental solution set of flat plate solar heat the water in the scaling problem. "

    Second, to improve the flat solar collector thermal performance in efforts to solve the problem of low thermal efficiency in winter. "Effective approach is to use high performance selective coating absorber plate, to achieve high solar absorptance (90%), low infrared emission ratio (6%), but also solve the tube sheet heat exposure. Flat plate solar collectors device through the glass cover ratio should be high (90%) tempered plate glass, replace the low transmittance of ordinary window glass. "Jiang Xi was said.

    Large-scale production in contrast

    In addition to a breakthrough in flat panel technology, how like a vacuum tube mass production, reducing costs, and vigorously promote the adoption rate as civilian water heater is placed in front of flat panel solar water heater manufacturers grim topic.

    In this regard, Hu Guang-liang said in an interview: "flat panel solar industry to achieve large-scale production would require the corresponding system can achieve the same production, such as building products, serialization, standardization is the first standardized the size of solar collectors, collector plates core parts, components can be produced according to uniform standards, construction, installation, inspection should also be uniform standards, specifications, products of different brands to achieve common, can really put solar construction, installation into the universal installation of the column, not only the scale of production can be realized, but also the market will regulate the development of rational, not only to ensure effective promotion of solar energy applications, and even make solar energy popular and achieve effective integration and architecture, and promote healthy and orderly development of the solar industry. "

    As the promising prospect of flat water heater, solar shower, Aucma and other domestic brands have also invested plate solar water heater project. It is reported that Shandong Province, located in Jiaonan Haier solar water heater manufacturing plant, production lines have been adjusted, including the flat-plate collector production line, water tank foam line, pressurized spray tank production line and frame lines. "We only do solar hot water system specialists, we need to do panel of experts ." Haier said Zhou Qiang, director of solar energy planning.

    "With the introduction of national policy and the needs of the domestic market and domestic large-scale solar panel manufacturer s efforts, China s solar panel will usher in a golden age." Hu Guang-liang said optimistically.

can battle one roof to share?

[REVIEW] According to Harbin, housing security and Housing Authority property at Chen introduced, according to the \"Property Management Regulations\" and \"property law\" the relevant provisions, the roof is a common site, the owners do not allow unauthorized possession. Based on the actual situation, residents to install s must obtain residential property owners\\ committee and the top-level owner\\ s consent to install.

      Battle of illegal installation of roof

According to Harbin, housing security and Chen introduced at the Housing Authority property, according to \"Property Management Regulations\" and \"property law\" the relevant provisions, the roof is a common site, the owners do not allow unauthorized possession. Based on the actual situation, residents to install solar water heaters must obtain residential property owners\\ committee and the top-level owner\\ s consent to install.

According to introduction, part of the district and the old Harbin residents on the top floor installation of solar water heaters, and many property owners without the consent of the installation of solar water heaters produced by violations of contradictions. Top-level residents are worried that, once the equipment leaks, home suffer. Comments on behalf of the property North Pine Eagle property residential green water, said deputy general manager Liu branch, without the consent of the property agreed to the installation of solar water heater problems borne by the factory owners, but also three dozen property line. Zhang Xuan West residential property company, said the roof more than one water heater, increasing the body\\ s load-bearing floor, really unsafe.

      Three of the more obvious advantages

      Electric water heater, a solar water heater with a focus on the whole building to use solar water heaters more, what more advantage?

      According to the City relevant staff at the EPA Science and Technology Lee introduced, electric water heater more than 2,000 yuan each, according to electricity, each household to be hundreds of dollars on electricity. Install a solar water heater family spend an average of 3,000 yuan, although no power to spend money but take public space. Families do not have solar water heaters, the need to let go of the pipe in the water, drain again, Sheung Shui, it also brings water to waste. Winter ice is also prone to wandering child phenomenon, caused by safety problems. Concentration of a building using solar energy, simply install the collector unified, up and down the tank, circulating tubes and other devices, solar water heaters save energy through intelligent control system, the Four Seasons is building hundreds of households to provide hot water, saving space do not spend tariff, just take water. A number of manufacturers currently on the market are doing the project, a residential building, installation costs in the million or so, share the home as long as a few hundred dollars, and affordable.

      Step by step solution on demand

      Whole building energy-saving environmental protection, install a solar water heater can promote in Harbin? According to the City Housing Authority housing security and Publicity Minister of the Ministry, at present, Harbin is not the introduction of relevant laws and regulations to guide people in residential buildings to install solar water heaters. Currently more than 4,000 communities in Harbin City, the original, mostly flat roof, there is no stop light problem, if a residential building space for the installation of a solar water heater is not a problem, but the need for owners and property agreement.

      Some older residential buildings, the top leaking through the cold more serious, now in progress and some energy-saving residential buildings, the flat roof into a pitched roof, the owner may request the construction side, self-financing the installation of a water heater, and the design the trend line for the whole building to provide hot water. New residential developers to plan ahead, set aside real estate construction pipeline, the houses when home buyers to seek consent, unified installation of solar water heaters, the installation costs into the housing fund in the count, step by step to solve the problem. According to Minister on, the residents of Harbin City, the feasibility of building a larger concentration of solar energy, but has yet to have a building to install a solar water heater precedent.

      Heilongjiang Provincial People\\ s Congress Hou tree was proposed, housing, environmental protection, energy conservation department may be feasible to come up with specific implementation plan, according to public needs, providing technical guidance.

Analysis of the spatial extent of technological innovation of

[REVIEW] \"from the current market competition and corporate performance, our products, is much room for technological innovation: First, on the other major components in the vacuum tube technology upgrade; the second is in the product structure and function innovation; third is in the solar-based, such as auxiliary power on the creation of new products. \"

     \"From the current market competition and corporate performance, China\\ s solar water heater products is much room for technological innovation: First, on the other major components in the vacuum tube technology upgrade; the second is in the product structure and function of the innovation; three in solar-based, auxiliary power and other new products on the creation. \"

      Recently, China\\ s solar industry experienced technical experts, Beijing New Energy and Renewable Energy Association, vice chairman of the Lessons of expression.

      Lessons also pointed out that in the solar water heater product innovation and upgrading process, the large enterprises to play an exemplary role, to develop innovative product technology roadmap for internal planning and research and development each year to ensure that the enterprise product technology R & D and innovation for the cost of the proportion of investment.

      It is understood that since last year, the first in four seasons Mu-song within the industry launched the \"automatic\" water heater, and then have led to Sang Le, Huang Ming, Sun Yu, Qinghua Sun, brilliance and other companies quickly followed up the introduction of digital technology, New 3G units and other automatic solar, solar water heaters in the domestic market quickly set off a wave of \"automatic\" product competition boom.

      In this regard, Lessons that the current domestic enterprises in the intelligent instrument controller and overall system control technology, water has been very mature, especially the stability of some industrial components has been significantly improved. The emergence of automatic solar water heater will help market the application to facilitate the consumer\\ s use. The future, automatic solar water heater can be used in addition to ordinary families, will be widely used in large-scale construction and water engineering. Especially in the hot water system for remote operation of control, the automatic water heater will be more advantage of smart technology.

      Chen Gang, deputy secretary general of China Household Electrical Appliances Association, believes that solar water heater with automatic means of technological innovation, the market will not only existing \"manual, semi-automatic solar energy\" to achieve the upgrading of the main town in the country and took the lead off a new round of rural areas market consumption boom, will promote solar water heaters as well as from rural to urban areas such as the future among the large building, which greatly expand the industry\\ s development. Can be expected to \"intelligent digital control, system integration design\" as the core of the \"automatic solar energy\" will be the development of the industry trends.

      Lessons also that, after the product is the key to solar water heaters and heat-absorbing properties of thermal protection in two areas, but the emergence of automatic solar energy, will be based on the original technology into the business of intelligent control technology, a unique, high-tech content of representative products.

      In addition to water heater whole system of technological innovation, Lessons also noted that in all parts of the vacuum tube that is also a great innovation. Currently on the market can only offer these low-temperature glass of water, and in the technical means can produce a \"family can drink the water temperature of 100 degrees\" and the \"printing and dyeing factories in the warm water of 150-200 degrees . \"

      In the product R & D and innovation, Lessons that enterprises should focus segments to local conditions, characteristics of different regions of the light appearance of functional design and development of different products, so as to truly meet market and consumer demand.
 

US-India Law market analysis

[REVIEW] solar water heater market in the United States, about 10% glass solar water heater market share, with a low temperature in the pool of non-glass solar water heater accounts for about 88% market share.

     United States

     Solar water heater market in the United States, about 10% glass solar water heater market share, with the temperature in the pool of non-glass solar water heater accounts for about 88% market share.

     And compared to previous years, the 2008 U.S. solar water heater market growth has slowed. By the financial crisis and the real estate market downturn, the solar water heater market in 2009 the United States decreased by about 8%. While the Government strongly supports the development of renewable energy, but still can not stop the market decline. With the U.S. economic recovery, solar water heater market is expected to recover somewhat in 2010, and in 2011 five years after the double-digit growth.

     Flat plate collector is the most commonly used civil solar collectors. Low cost, aesthetics, and is the only U.S. production of collector – these factors make flat plate collector as standard products the U.S. market, accounting for 90% market share.

     The whole solar system (Integral collector storage systems) is mainly produced in North America, which consists of one or more storage devices composed of thin copper. These storage devices installed in an insulated glass box, cold water to warm up through here, the heating of the water rose to the top and then flow to the collector in the storage device.

     Vacuum tube collectors are usually more expensive than flat plate collectors, these products in the United States for commercial and industrial heating.

     In the U.S. market, there is no local production of vacuum tube collectors. Many U.S. companies in the local design products, but in China. Other vacuum tube collectors from Europe (such as Viessmann, Thermomax) and Israel (for example, Chromagen) imports. The market\\ s leading manufacturers of s are: Apricus, Viessmann, Thermomax, Chromagen, Sunmaxx and Solar Panel Plus.
   
     From the use of , the U.S. civilian market share gradually reduced, the commercial construction market, the increasing demand. For example, PepsiCo recently installed in two projects of 1 million square meters of collectors.

     Currently, the U.S. market, only 4% of the solar system is heating and combined. However, analysts believe that the solar heating system for the huge market potential.

     Tax and other incentives, as technology advances to bring the price down, scale down the cost of production and consumer awareness of products and other factors gradually increase, enough to make a large number of consumers are willing to carry through the solar heating system and access to hot water.

     India

     In recent years, solar water heater market in India to maintain a larger growth in 2008, market capacity of 45 million square meters, an increase of approximately 20% in 2009. All solar water heater market in India are provided by the manufacturer in India. Among them, the majority of local manufacturers in India, part of the grounds of foreign companies holding a joint venture.

     Indian market, the flat plate collector has been dominant. But in recent years, vacuum tube collectors grew very fast, the future may be more than flat plate collectors. Flat plate collector and more local production in India, and most of the vacuum tube collectors from China, assembled in India. Vacuum tube collector has the advantage of low prices, but in terms of performance, there is no significant difference between the two products.

     The rapid growth of the Indian market is not due to the support of government or policy, but favorable economic policies and legislation will help the market grow faster.

     Canal Kabang Bangalore is India\\ s largest regional sales of solar water heaters, solar products are very popular in the local, almost all new buildings are used. Bangalore is India\\ s solar energy industrial center, a large number of solar manufacturers or near the plant where. In addition, Pune, Delhi and Hyderabad and other places there are some manufacturers.

Solar water heaters into the Guangzhou people s homes to three-level

[REVIEW] twisted the faucet had hot water, residents can be as long as the credit card consumer hot water, overhead collector set, still lush rooftop garden … … November will be "opened its doors," the Guangzhou Asian Games City, 89 buildings, more than 8,000 suites, provide 24-hour hot water, all from solar energy.

    Asian city of more than 8,000 suites offer 24-hour hot water all from the solar

Unscrew the faucet there is hot water, residents can be as long as the credit card consumer hot water, overhead collector set, still lush rooftop garden … … November will be "opened its doors," the Guangzhou Asian Games City, 89 buildings, more than 8,000 suites , provides 24-hour hot water, all from solar energy.

Although experts predict, the mainstream of the future family with hot water will come from solar energy. However, solar hot water into the homes of ordinary people still face price, installation and policy three major "bottleneck." Park as a future living "model", the Asian Games City is how to solve these challenges?

Difficult one: the risk of illegally built

At present, solar energy use problems encountered on several fronts: the installation of solar water heaters sad "plan off." According to the relevant provisions of urban planning and construction, building roofs are common residents of the whole building site, are not permitted to increase the common parts of the self-use equipment, no planning, "Zhunsheng Zheng," On the roof without permission is illegal construction of solar installations. Second, the size of the collector, installation, lack of uniform standards, if you wait until after the completion of the building, in addition to the installation, to bring more security risks building and landscape damage; private owners installed on the roof of the "pot cover ", if not installed lightning protection devices, may become the largest" lead mine accomplice. "

The solution: integrated design to be built

I boarded the Asian Games Town Technical Officials Village, Building 10, the roof, I saw 6-meter-high steel frame erected on the roof, vacuum tube solar water heater collector panels on a steel frame above the shop, like the natural sun visor, and roof design seamless. The use of aerial design, solar water heater collector panels do not take up the roof area, roof of the "Hanging Gardens" is still lush. Floor surface of the hot water pipes with a special material "package" will not burn people at the rooftop leisure and play.

Residential toilet, a bath without water heater like the hotel as long as they have twisted the faucet of hot water. Some devices are equipped in each household a total of six rooms in the water, impurities in the water supply, respectively, high-quality water and domestic hot water, watering, bathing, cooking can take what. Including hot water pipes with a special smart meter, residents can be as long as the credit card consumer hot water.

"We are in the construction bidding program on the use of integrated design of solar systems, together with the construction program to be built, and designed with a roof of heavy computing loads, water requirements, plus a lightning protection device to avoid a one as each installation, the housing function may cause varying degrees of damage and the risk of illegal construction. "Guangzhou Asian Games City solar project leader Luo Huiying said.

Problem 2: the high price

High prices of solar water heaters, it has become into family s threshold. I visited the city several large appliance stores, find rare solar water heater "shadow." Suning Appliance, a sales official said, in the city s water heater market, energy water heater accounts for 2 / 3, the remaining 1 / 3 is basically a gas water heater, solar water heaters in the city basically no market share. It is understood that an ordinary gas or electric water heaters up and down the retail price is generally in the thousands, or even three or four hundred dollars of promotional items, while the price of the basic brands of solar water heaters are more than 3,000 yuan. "Although solar and energy efficient and environmentally friendly, installed after no electricity, but its first investment is a bit high." Aunt West side neighborhood off some frustration.