2013年1月6日星期日

The industrial revolution of the solar panels


The solar panels can be like a Band-Aid stripped down adhere to the surface of the object - In other words, solar energy may be able to provide energy supply for all objects a.

According to scientific reports "(Scientific Reports) reports, Stanford University scientists have invented a peel-and-stick solar panels, and ordinary solar panels the size of this new type of solar panels to provide electricity, importantly, the solar battery plate does not require any assembly, greatly broadens the range of potential applications of solar technology.

Stanford University, Zheng Xiaolin (Xiaolin Zheng, transliteration) explained that this new technology is a "sandwich" structure composed of silicon, silicon dioxide and metal.

Solar cell peel from the sheet, the sheet must be at room temperature down on the water, the thermal release tape slowly out of the water to seep into the nickel and silicon dioxide interface, the solar cell will slowly out of the hard piece, but still attached to the thermal release tape. Zheng Xiaolin said that this experiment has shown that the peel-and-stick process does not affect the effectiveness of the solar cell. "And do not waste, the silicon flake is not only not damaged, and very clean, solar cell peel, it can be used repeatedly. Imagine future solar cells can be glued to the helmet, cell phone, convex windows, and can carry surface of any electronic equipment, clothes and other things. "

The article also said that this process can be applied in a thin film electronic devices, including printed circuit boards, the ultra-thin transistor liquid crystal display. "Obviously, thin-film electronic devices and thin film solar cells combined with so many new products to the new field of aerospace systems from smart clothes have a realistic possibility."

The application of solar panels still further widened. The ultra-thin solar panels, this solar panel joint study by the Austrian university researchers and researcher at the University of Tokyo is the world's thinnest, lightest organic solar cells. Its thickness is only 1.8? 1.9 microns (1 micron to 0.001 mm), with a thickness of 1/5, only a household wrap film thinner than spider silk, but it is very flexible, can be wrapped in a hair.

The scientists at the University of South Florida in the United States also invented a high-tech paint can change ordinary glass for solar panels. Ordinary the glass smear on this paint turned into a high-tech solar panels can photoelectric conversion.

Governments and the world photoelectric science and technology in the field of talent devoted enormous resources and efforts on the research and development of high-tech solar panels. solar panel time within the foreseeable future, human use will not lack permanent energy and pollution is also small compared to oil, natural gas, coal and other resources. The use of solar energy is based on the photoelectric conversion of solar panels.

The solar power station is put into use by the endless rows of bulky solar panels, and the photoelectric conversion efficiency of only about 15%. With the future conversion efficiency is higher, the volume is thinner, lighter, and can be bent adhesive, resistant against wear high-tech solar panels continue research and development and industrial production. Human third technological revolution will bring great changes. The history of human civilization steam technology revolution and power technological revolution brought about the first and second industrial revolution, great technology and life progress. The third technological revolution as the main indicator of Atomic Energy, computer, Internet, space technology and bio-engineering, invention and application of human life and production, combined with a new generation of solar panels in the future, will bring again leap resistance change.

Thermostat spacesuit will no longer be exclusive of the astronauts, both summer and winter high and low temperatures, humidity, temperature can also be embedded collapsible clothing, shoes and hats of the ultra-thin solar panels will provide four seasons of feeling like a adjustable .

The solar panels will greatly enhance the portability humans truly entered the the portable era, no longer plagued by energy needs anytime, anywhere. Phone never power off automatically the insulation heating lunch boxes and cups, glasses-powered self-sufficiency computer completely clean energy, solar car, solar homes, solar adventure camp, solar human implant disease early warning chip removable solar wifi base station .

2013年1月5日星期六

Huang Ming said urban solar market rout across the board


Compared to the United States, the European Union, the NDRC punishment is much lower. In this regard, the Development and Reform Commission explained that the United States, the European Union on the case is based on the country's anti-monopoly law penalties, fines cardinality of the enterprises involved in the sales, the amount of fines. While China is the basis for the "price" punishment the fine base is the illegal proceeds of the enterprise. In addition, these panel enterprises have surrendered the plot, thus giving a lighter punishment varying degrees, the amount of the fine is relatively light.

The NDRC 4 announced that South Korea's Samsung, LG and other six companies conspired to manipulate the price of LCD panels, was fined 144 million yuan, while ordered to refund the total amount, including confiscation and fines reached 353 million yuan. This is the first implementation of price monopoly of foreign enterprises punishment.

Relevant person in charge of the China Optics and Optoelectronics Manufactures Association LCD Branch said in an interview with reporters, the more this is the expression of an anti-monopoly attitude within the LCD panel industry development, although positive, but the overall impact is expected to indirectly, for the territory of panel manufacturers to provide development opportunities.

It is understood, LG, CMO, AUO enterprise solar panel started in December 2012 extended warranty policies, Samsung also will be implemented from January 1, 2013. According to the industry association estimated alone each year for the domestic color TV enterprises to reduce the maintenance costs of 395 million yuan. (Shanghai Securities News)

The Credit Insurance escort the photovoltaic enterprises "going out"

The photovoltaic industry has been an important part of the development plan of the country's new energy industry. Not long ago, the State Council executive meeting to determine the "New Deal" to promote PV development winter photovoltaic industry, which undoubtedly brought a message of spring. Export credit insurance as export enterprises avoid overseas risk a policy tool, but also play a crucial role.

Body as only an operating business of export credit insurance policy the insurance company, the China Export & Credit Insurance Corporation for the job. This reporter recently interviewed was informed, the ECIC, China Shanghai Branch will take a series of positive measures, "going out" escort the PV leading enterprises in Shanghai, urged the steady growth of Shanghai's new energy industry.

As of the end of 2012, the Shanghai branch of China Credit Insurance cumulative support PV industry exports $ 3 billion, the full the Shanghai-scale production can hundred MW level in large-scale PV solar cell companies have all been revealed that Lu Dong, deputy general manager of the Shanghai Branch of China Credit Insurance The export business into the security system of credit insurance.

It is understood that the Shanghai PV companies have invested heavily class project to discuss cooperation with the ECIC China Shanghai Branch. (Shanghai Securities News)
Industry overview:

Negotiations for six months or the termination of the oil Iran the investment projects notch quagmire

Under the shadow of U.S. sanctions, China Petroleum (601857, stock it) investment projects in Iran has also been involved in a quagmire. After see-saw up to six months after negotiations, the Iranian Oil Ministry spokesman again on December 26, 2012, said PetroChina "lack of will" do not want to promote the South Pars gas field project in the local course of time this delay The contract is also likely to be stopped.

In fact, this has been around since 2011, and Iraq this project another position. In August 2012, the Iranian media had reported the news of the oil has been withdrawn from the South Pars gas field. Prior to the interview with this reporter, the the PetroChina internal middle class claimed the PetroChina never to withdraw from the South Pars gas field project.

The former executives of a foreign oil and gas companies, told reporters: "Oil is Iran's main source of income, Iran is struggling to break through the sanctions of the United States and the European Union on its oil exports, as the largest investor in Iran, China Petroleum exert pressure can be imagined. "

Previously, the oil companies began to withdraw from the Middle East Gulf coastal city near the South Pars gas field construction personnel will undoubtedly highlight the implementation of the "balance tactical. But after a few months, trying to wait and see. Preserving control strategies encountered a new problem.

New solar baths benefit more than a thousand people


Qianlong Beijing News "is now much more convenient, even cold days, we can be at home to wash on hot water bath. Hefeng Village, who lives in niulanshan town, Zhang aunt said pleased.

Recently, the Hefeng Village, Niulanshan Town, solar baths officially open to the villagers, the villagers sent a New Year's gift. It is understood that the rural public bathroom with solar collectors 500 groups, each set of equipment per day can produce five tons of high-temperature hot water to meet the need of 100 villagers bathing. Compared with coal heating, solar public bathroom one-time investment is not high, the subsequent operation and maintenance costs are also relatively low. A rural solar public bathroom equipment, can be eliminated to a rural coal-fired boilers, an annual reduction of 80 tons of emissions of polluting gases.

In this, niulanshan town after Yanzi Fangezhuang, the Hefeng three solar village bathroom have been put into use to benefit the surrounding people, more than 2,000 people. Currently, the town a total of eight public solar cell bathroom, bath brings great convenience for the people in winter. In recent years, niulanshan town will enhance the happiness of villagers as one of the priorities of the work to continue to strengthen rural infrastructure construction, the new solar bathrooms and other measures, through the construction of public sports facilities, pollution toilets, and constantly improve people's livelihood the innovative carrier deepen service, so as to facilitate the people to enhance the quality of life of villagers, build a low-carbon energy, green, comfortable and livable new rural.

The SMM Reuters: Kaneka HIT technology to produce N grade monocrystalline silicon solar cells solar companies in Japan. It is reported that the company and Gintech and Neo Solar Power solar companies in Taiwan to discuss cooperation matters Japanese solar company intends to transfer of technology to Taiwan solar product scale production. Layer of Gintech, as well as the implementation of the new solar energy company officials have identified are former negotiations.

According to reports, Kaneka Corporation of Japan as early as 2011 in the contact solar company in Taiwan. But solar panel companies in Taiwan have been assessed using the HIT possible risks of large-scale production.

Kaneka and Belgium IMEC in late 2011 announced plans to jointly 6 inches HIT solar cell, the battery will be used the copper materials instead of silver material. The conversion rate of the energy efficiency of the battery of more than 20%. The Kaneka companies hope that the the HIT technology transfer to Taiwan solar mass production of the product. Solar manufacturers contact with Kaneka Corporation: Kaneka will purchase a certain number of products.

Increased demand for N-class solar products

P grade monocrystalline and polycrystalline silicon solar products market has been oversupply, resulting in the loss of China's most competitive solar companies.

Solar companies in Taiwan, although there is no risk of bankruptcy, but some small solar cell and component companies has been discontinued. There are also plans to sell the device.

Despite a trade war between China and the United States and Europe, but in the mainstream of monocrystalline and polycrystalline silicon solar market competition and China is not easy. However, as a result of a trade war, many orders have turned to Taiwan for production. In addition, in order to avoid the high cost of production, the Japanese companies by the Taiwan OEM orders proportion of contracts.

2013年1月4日星期五

The solar was Donglie steaming


Eight o'clock in the morning of January 3, 2013, in Taitung eight Daming Road intersection Yijuminlou the roof, the sudden surge of white mist, the downstairs people passing thought to fire, and quickly call the fire call. A look up after the firefighters arrived on the scene, turned out to be the roof of the solar energy is the cracking, fly from the water vapor in the hot water drips out.

"I was watching upstairs braved the white mist, I called, the person next quick look at what's going on, they then someone shouting is not on fire, or the roof where's the smoke." Mr. Yoo, who lives next to the incident to Speaking with reporters at the time, do not know specifically what happened above, someone hit a 119. Firefighters went upstairs to see the original roof of the solar cell water pipes cracking inside the hot water out, the the smoke heat so downstairs public thought it was on fire.

According to Mr. Lew said, because these days the continued cold weather, the three or four residents of the nearby upstairs solar cracking. Eight Lake area specialize in the repair of solar water heaters in summer master told reporters, "recently received all the cracking of some drums liner froze broken, basically all evening filled with water, and solar thermal insulation effect is not enough a freezing drum broke. "summer master also reminded that the best night to let go of the water in the bucket, with worn clothing or specialized pipe insulation wrapped around water pipes.

Xing'an County, who had to join the discussion of this decision of the leadership, confirmed the existence of the decision to reporters. Launched at the beginning of the photovoltaic industry, the prospects for the industry are not understanding, later Secretary Wang took us four team, Xinyu, Jiangxi to examine two convince approved of this industry ".

Nevertheless, when this practice submitted to the National People's Congress for consideration, or they did not raise consent. Xing'an County People's Congress who took part in the vote over the motion of the officials told reporters.

For these statements, Jiang Zhuguo an interview with reporters to be denied, "As far as I know, now Geesun in Xing'an load is probably also about 5 million.

Reporter learned that the local financial support for PV companies, has already been written in the express. In July 2011, the Guilin government made ​​the photovoltaic industry support policy "on accelerating the development of the development of one hundred billion yuan solar panel photovoltaic industry decision", which are exceptional, such as:

"Where various types of solar photovoltaic enterprises to invest in the city to enjoy the relevant preferential policies of the state, its 5 years and turned over to the local retained part of the 50% tax by the beneficiary financial incentives to enterprises to expand investment and R & D";

Increase financial support to promote the cooperation between banks and help key enterprises and major solar PV industry projects with financial institutions docking strengthen credit support for solar PV companies. Encourage municipal types of security agencies to increase the financing of solar PV companies efforts to guarantee services for enterprises benefited finance in accordance with the cumulative year to 1% of the balance of guarantee given to the risk of subsidies funded.

Solar street lights so the nightlife alive


"The village has nightlife." In Huadong Town, Lianan Village, 206 brand-new 30-watt solar LED lights erected in the village and countryside and out of the village trail. Street lights covered the whole village, the villagers are willing to participate in sports activities night, the village initiative to set up a Hakka folk songs team, basketball team, dance team, every night after dinner, the villagers packed home out of rehearsal, ready to participate in the competition. Night small village square, lively like a small town.

"In the past, the little village at night recreational and sports activities, only to watch TV at home and play mahjong the motion last 11 moon the street lights, the nightlife of the village to achieve a breakthrough, but more and more colorful. Cuntou small square, until the night 10:00, will gradually calm down. "live the end of the village 76 years Houbo deepest feelings, his face wrinkles smile to unfold. Houhai Ying is a beautiful young wife, fashionably dressed, Mandarin is also good. "My son is three years old, every night for dinner and took him to play together with other solar panel children in the square, exchanges with other mom 'Minato Aberdeen experience'. Playing mahjong at a disadvantage to the child's growth. Now adults out for a stroll, dance , fitness, children out to play with, along with exercise, a healthy life. "

HOU Liang Ming, the MONUA village party branch secretary, lamps will not only allow the village to have a nightlife, but also greatly facilitate the production and learning. Village about 200 people often have to work at night, there are more than 200 students read three days, and three on the study, the evening, they came home from school, Heidengxiahuo often minor accidents. With street lights, the long-term so that children and adults disaster has solved the problem.

"I was a first grade classes of Hou Yu Ping, 7 years old my papers, 100 points!" Several "red scarf" forward to the basketball court ladder homework under the street light. "Can be clearly seen it? Will the eyes is not good?" Hou Yu Ping said: "No, technicians uncle said, brightness, 50W LED lamp is equivalent to a 250W high pressure sodium lamp, 30W equivalent to 150W; You see, Our job is done. "

Huadu District, urban and rural construction sector in 2011, Huadong Town basically completed the construction of the main sections of the street in the rural areas, the installation of street lights 2077, the total mileage of about 80 km, covering 35 administrative villages, to benefit a population of about 80,000 people . 2012, Huadong Town, rural roads, street light installation work to continue to improve, plan to install street lights 588, with a total mileage of about 24 km, involving five administrative villages, benefiting a population of 20,000 people. MONUA Village Phase II project was the first of a number of lights.

The Huadu District village originally had no street lights on the road, have also been newly installed street lights lit. Timian eight administrative villages, the town of about 8,000 residents; Currently, the town village cumulative installed street lights 1683, the first town to become the first in the whole Guangzhou City the rural street light construction tasks.

In 2007, Huadu District, there are only 18,000 street lights, has reached more than 30,000 lights. The new solar LED lights can be controlled in a natural luminosity can also manually adjust the light off, brightness ranging from 15W to 60W, solar cell batteries use technical indicators to 30,000 hours the lamp also reach tens of thousands of hours --- that is, about 3 to five years, the manufacturers warranty period of four years. Huadu District street lighting rate reached 99.5 percent last year. The area electricity sector also set up 254 of Weimin service squad, specifically to solve practical problems in the electricity, "to ensure that street lights could have been brighter go."

In mid-June last year, a township street light project completion and acceptance. According to the Municipal Construction Committee Environmental Construction Deputy Director Zhou Kaibo, one for each section of lighting rate reached more than 99%, has been officially handed over to the local governments responsible for management, including Baiyun District 9194, Huadu District, 18060 Conghua City, 11894 light, Zengcheng City 15246.

It is reported that the solar street light battery life of the equipment is only 3-5 years, when faced with the problem of battery replacement. Management in accordance with a street lamp, street lamps during the warranty period (solar street lights the whole lamp warranty 4-year battery warranty to 3 years) of quality problems, by the construction unit is responsible for maintenance; case of stolen or damaged human, by the local government responsible for the repair.

"Get through" seven rainy days

In order to allow the rural points the affordable street lights, and do not worry about can not afford to pay the electricity bill, the second phase of the installation of lamp type LED lights and solar LED lights, these new solar lights to ensure seven consecutive rainy days average daily lighting 12 hours.

It is understood that the the township street lights, the two All construction is complete, the rural areas of Guangzhou basically every village street. Next, the relevant departments to establish and improve the the township street lights use management system and the assessment mechanism to implement the personnel to resolve maintenance funds and improve the level of conservation, and to ensure that rural street lamp has been lit to go. Possible environmental pollution items for future replacement of used batteries down the solar, LED lamps, sodium lamps, etc., will all recovery, classification and reuse waste materials, spare parts and other unified treatment.

2013年1月3日星期四

Solar companies 2012 first three quarters of losses resolve


Not long ago, the Premier of the State Council held a photovoltaic thematic meeting to study the deployment of the PV industry, and the introduction of the five measures to cope with the lasting PV industry that does not break the deadlock. On the surface, China's photovoltaic spring is within sight, but within the heart of each photovoltaic industry veteran clear, then cattle policy also plays no PV's sad, the country can save the solar panel moment I can not save, photovoltaic enterprises to the stay does not occur because of the introduction of the policy change. Support of the photovoltaic industry, the Chinese government not suited to the present state of the nation, also is not suitable for the current situation of the photovoltaic industry, the bailout is really quite upset, Chinese photovoltaic development today in the government's eyes to become truly "tasteless, tasteless abandoned pity.

Rehash the source of the problem of the Chinese PV industry capacity and demand serious not unlikely to want to increase the installed capacity to digest capacity, thereby promoting the right track, which is why the photovoltaic industry lasting downturn. Forward, no big avenue, retired government enterprises are unwilling to face, only to the enterprise supplementary feeding.

Capacity can not be quickly eliminated, installed capacity rose rapidly does not alter the current state of the industry will not be able to end the battle was fierce price war. Throughout 2012 shipments of major photovoltaic enterprises, its value is more than the 2011 total shipments (see Table 1 below), enterprises are facing the problem of not sales is not smooth, but rather the product price is too low, production more on the loss of the more enhance the installed capacity of photovoltaic power plants, in this context, what is the significance of it?

The extent of the loss of the first three quarters of this year, overseas-listed PV companies are close to even more than the amount of loss for the full year 2011, we can see the speed of the falling prices of PV products, shipments of these enterprises, although not large fluctuations in the obvious, but profitabilitybut again slipped. Table 1 and Table 2 opposite situation, at least in the PV line enterprises uncompetitive bullish sales but has played a negative role in photovoltaic gradually wear down the old star.

PV companies need to be aware of the loss of the root causes of low product prices, shipments still blindly focus and spend money earned crying, 2013 PV enterprises regardless of size, no matter how deep bundled with the local government will die out, because no government can continue to tolerate this situation, and once they left the government relief, companies will die immediately. The installed capacity of the industry talk about no real meaning, more need to talk about how strong the elimination of backward production capacity, how much reasonable eliminated after product is scientific and reasonable price, in order to get businesses to self-sufficiency.

At present, the leadership of many PV solar cell companies exist a completely wrong, the upside-down logic, that the business recovery driven by the market start to this pure broken belongs whimsical. Throughout the 360 line, which industry usher in leaps and bounds in the enterprise is a pathological when the enterprise profitable are thus boosting capital to enter, and then detonated an industry.

Before the photovoltaic industry is indeed the introduction of the capital, but the introduction of capital into the manufacturing sector, the capital of the application areas is quite small, private capital in a wait-and-see, the state-owned capital in to test the water. Although not a full market economy, but the lack of private capital markets on the lack of vitality, will never be able to have the possibility of active. In other words, the ability of the business to survive is that when prices change, the survival of the industry is that the policy can bring reassurance, through the entry of private capital to develop the terminal market and new business models.

Solar water heater industry reshuffle accelerated


Following the photovoltaic industry, domestic solar water heater industry is also experiencing a turbulent If the decline of the photovoltaic industry more constraints derived from external market factors, the feast of the solar water heater industry, more from within the industry to wash card. After more than ten years of rapid development, the industry is experiencing break the pattern, reinvent the wheel, to raise the threshold change of survival of the fittest.

Decade of rapid growth, once facing bottlenecks

The development of solar thermal industry for nearly 30 years, especially over the past decade has made rapid development, industry annual growth rate of more than 30 ℅, ahead of other industries, the output value of the development to the six or seven hundred billion. 1000 According to incomplete statistics, existing solar water heater manufacturers, solar panel distributors of more than 10000.

The data show that since 2009, solar energy products to the countryside, gradually recognized by the rural people, rural from urban to urban high and then, the market has done hundreds of billions of capacity. According to incomplete statistics, in 2009 the output value increased to 57.85 billion yuan, 73.5 billion yuan in 2010, jumped to 93.5 billion yuan in 2011.

After 10 years of rapid development, solar energy has entered a stage of growth is slowing, compared with 30% of the growth of the solar industry over the previous year, the growth rate of only 17.6% in 2011.

Currently, despite the strong solar enterprises continue to be strong, only 2012 solar thermal business into the various stock market there are four particular sunrise listed in the Shanghai Stock Exchange A board, had a shot for the entire industry practitioners strong shot in the arm. But small businesses off the closure of discontinued tide dealers face of "adequate" began to shake, and some replacement brand, some simply exit the market. The development of the industry is facing an unprecedented bottleneck.

The industry reshuffle acceleration former boss out

"No-name, market chaos" is the portrayal of the solar cell market. The annual output of solar water heaters in China is about 50 million units, of which more than 80% of a variety of small brands. Those who are not qualified, does not meet the technical standards set threshold is too low, can come in this disorderly competition led to the vicious cycle. Accompanied by the acceleration of the industry reshuffle, to keep up with the market development of enterprise, began to be cleaned out, experts said, the next 3-5 years, this figure will be more than 50%.

It is worth mentioning that the Emperor Ming of the year, once the industry leader of high-profile announcement to "flee" the water heater, the transformation of "climate improve the mall. I understand that the past three years, through the Conference in Sun City, Emperor Ming tentacles extend to the exhibition, hotel, travel, the actual gain is not large, one micro-row hotel project in the first three quarters of last year losses of 4420 million. In addition to their own poor management, industry competition Emperor Ming face enormous pressure.

The reporter from the shares of the controlling shareholder of Emperor Ming Huang Ming Holdings' financial data, 2008, 2009, 2010 and the end of September 2011, Emperor Ming Holdings net profit of the consolidated financial statements were $ 1.97 billion, 1.09 billion, 0.75 billion and $ 0.28 billion. As can be seen from this group of financial data, Emperor Ming Holdings marked decline in profitability in recent years. Emperor Ming has frankly stated in its bonds to raise the book, "As competition intensifies, the market share of the company is facing downward pressure increasing."

The former leader of this "high-profile" curtain call the solar water heater industry. With the growing competition in the industry reshuffle will accelerate. "This industry is not necessarily a bad thing. Enterprise with industry experts put it no longer adapt to the market out, step-by-step market of good corporate mergers and acquisitions to become bigger and stronger, is conducive to the overall healthy development of the industry."

The environmental general trend promising industry

Prospects for the solar industry, many experts and enterprises given the high expectations in the just-concluded economic forum, a researcher at the China Institute, Chinese Academy of Social Sciences, Zhang Shuguang solar industry prospects are very bright ", speaking on the topic, and that it is a beautiful China Construction important issues.

The experts say that the future of technology and innovation is the development of the industry in the direction. Only has the advantages of these two aspects of the enterprise will be bigger and stronger. Currently, mainstream manufacturers have introduced innovative products and strategies, such as micro-energy technology strategy to upgrade Sunrise Oriental Tsinghua Sunshine "plumbing" products, force Norit from cryogenic applications toward high temperature application upgrade. The application of these technologies will undoubtedly improve industry threshold, promote the development of the industry has played an important role.

This regard, as the industry's first listed company, Sunrise Oriental has a more profound experience, we understand that several years ago will technology R & D as the strategic objectives of the enterprise development.

After years of development, the company photothermal conversion efficiency and thermal insulation coefficient is much higher than the industry standard of the country, in a leading position in terms of integrated application technology, process equipment designed and has a complete industrial chain. With state-of-the-art technological innovation and craftsmanship, products exports to over 100 countries and regions. For the development of the industry, the officials said, in the backdrop of the national energy saving policy, the industry will usher in a more broad space for development, in 2012 the output value of over one hundred billion has no suspense. The reshuffle after the solar energy industry will be more mature and healthy.