Shen Hui: Status Quo and Development of Solar Photovoltaic Building Integration

Today's guest speaker is Professor Shen Hui. Let me introduce him first. He is a professor of physical science and engineering at Sun Yat-sen University. Later, he received a master's degree from the University of Houston. After returning home, he established a research group for solar energy materials and nano-functions. Since 2000, it has established close cooperative relations with the Institute of Solar Energy Research and Applied Research in Germany. Professor Shen Hui is mainly engaged in the research of energy-supply nanotechnology. Professor Shen Hui has specially invited special academic reports at the 14th International Solar Energy Conference in 2004 and also cooperated with the Institute of Solar Energy Research in Germany. Professor Shen Hui is a doctoral tutor at Sun Yat-sen University. Now there are 24 graduate students, including 5 postdoctoral students, 5 doctoral students, and 10 master students.

Professor Shen Hui has cooperated with others and published many research papers. Theoretical research is quite profound. Today, we are honored to have invited Professor Shen Hui as a special research topic on solar energy. The topic is “The current status and development of solar photovoltaic building integration”. 》 Although there are not many people in the venue today, the expo is the last day, but it is of little interest to listen to technical questions about solar energy. From this three-day period, I have looked at all the various fields. The most popular ones are about real estate planning, economic development, and corporate management. There are many people who listen to these areas, and there are not many people who have more technical facilities. There are not many people listening to topics such as closed waste management and circular economy. Today we are enjoying doctoral treatment. I hope everyone can listen carefully. Now please give a speech by Professor Shen Hui. Everyone welcomes you.

Solar energy development concept

Shen Hui (Professor of Physics and Engineering, Sun Yat-Sen University) : Thank you, President Chen, who used to be the head of the Guangdong Provincial Construction Department. He has been promoting solar energy for many years. At this meeting, he told me about this, and I am also very willing to discuss it with everyone. I think there are not many people and there can be a better atmosphere for discussion. Today, I will mainly talk about the experience of solar energy in Germany and Japan, combine with Guangdong, and the development of the country, including some of the work we do, and discuss with you together.

First of all, to promote to everyone, our view on the development of solar energy use, solar energy will not reduce the use of the Earth's resources, do not cause environmental pollution, any chemical materials can not be compared. If used in a suitable location, it can also be compared with conventional energy technologies. The solar energy industry is a century-old industry and a millennium industry. From the aspect of China's solar cell production technology and application level, compared to other renewable energy technologies, it is more immature and should give priority to the development of the solar energy industry. China's solar photovoltaic power generation should be planned to be promoted in developed regions and promoted by cities. China's solar energy will be announced in about half a year, but in any case, the government still attaches great importance to it. For example, to popularize this thing in poor and backward areas, this is what we said before, but now it is in developed regions, and it is also in developed countries. I think we should take the lead in popularizing our developed eastern regions.

Take a look at this picture (PPT). This is a prediction of future solar energy. At present, we have about two to three hundred years of human development. I have spent billions of years of energy on solar energy, such as coal and natural gas. Under such circumstances, how do humans develop, including Germany, the United States, and Japan, have made some predictions. I have not yet seen our country’s predictions, but this is very informative and they are all using this map. Since 2003, solar power has accounted for a large share. The red is solar thermal, like solar energy can exceed 70%. In human energy consumption, coal, oil, and natural gas will go downhill. This is 200 years later, including the oil used by us all over the world for only 40 years, so At present, there is more than enough energy to rely on solar energy. Of course, it depends on everyone to practice.

From the perspective of the international energy development strategy, we will vigorously develop renewable energy sources and realize the complementarity of various types of energy. Our country will use coal as its leader, for example, there will be multiple sources of energy in the next 20 years. Such as wind energy, solar energy, oil, natural gas, etc. But anyway, from the use of yesterday's sunlight to the direct use of the transition from sunlight to sunlight, we say that yesterday's sunlight is coal, oil, etc. Today, it is photoelectric transformation, etc. I estimate that by 2050, photovoltaics may be realized. Power generation.

At present, we only account for 0.7%. There is a lot of room for development. And Germany is more than 10%, by 2010 it is 12.5%, in 2020 it is 20%, in 2030 it is 30%, and nuclear power plants are all replaced by renewable energy. If we say this according to this, the sun can exist for at least 5 billion years. Of course, I think Earth’s humans certainly will not exist for such a long time. I think from this perspective, solar energy is inexhaustible. Judging from the current development, mankind has found the two best methods, namely, solar thermal and photovoltaic, and it is combined with architecture. The other is the power generation of the power grid. In the future, a building itself is a solar energy project. It can use nets and light to convert. It can rely on it to survive. By 2010, by 2020, some may have to be ahead of schedule. Solar energy must be equal to conventional power generation. Including Spain and Italy abroad, they are all starting. It is predicted that photovoltaic power generation will be even higher from 2030 to 2050.

Everyone understands architecture. In the entire building, energy consumption accounts for one third of the total energy consumption in Germany. We are also one-third of the total. Photovoltaic building integration is the best form of solar energy utilization. It must be combined with architecture. This is very good. In addition, solar energy is generated from independent systems to grid-connected power generation. In remote areas of our country, Qinghai, Tibet, and so on, we have tens of millions of people who lack electricity. Under such circumstances, we use solar energy to generate electricity. It is a kind of poverty alleviation, but we all know that the independent system is not environmentally friendly, and it needs a lot of Magnetizing has gradually been replaced in the West. 99% of them are all connected to the grid for power generation, and only a few, such as some traffic and microwave transmission stations, are insignificant. They are independent systems. Others basically The concept of grid-connected power generation is very good. It generates electricity when the sun is in the daytime. There is no sun at night, using power transmission and solar power to a wind-regulating effect. The developed countries mainly promote photovoltaic power generation.

China is in an early stage. I think it is possible to promote small-scale cities in the eastern coastal areas like Jiangsu, Guangdong, and Shanghai. The best form is integration of photovoltaic buildings with grid-connected power generation. Our Guangdong is far ahead in solar energy, especially in photovoltaics, but it was opened in Jiangsu after 2002. Jiangsu became the world’s largest base for solar energy, including Shanghai and Hebei, where solar energy has become a new growth point. At this point, Guangdong is backward. Guangdong has an advantage. It is the largest market. It is a window, including Jiangsu, and Suntech in Shenzhen. Suntech is a listed company and has been listed in the United States for five years. This year's position is more than 1 billion. Last year, the output value was 1.8 billion, the profit was 1.4 billion, and this year it exceeded 4 billion, and the profit was 18 billion. No company would have such fabulous development.

The continued listing of these companies has also signalled the development of solar energy in China. When it comes to solar power generation, it is necessary to mention the current development of Germany in Europe. Germany was the first to propose this plan, and then Japan and the United States. Today, it is proposed by the whole state like Swingsted. For example, if Germany sends an electricity at home, the state gives a subsidy of 6 cents. Actually, the government has also done a very good job. I think that like energy saving and environmental protection, the use of renewable energy is the biggest environmental protection, and most people use solar power to generate electricity. Equivalent to protecting coal and oil, it also reduces emissions. They increased all electricity prices by 1 centimeter, and then subsidized some people, probably a dozen countries, including such similar policies as South Korea. Germany has a very detailed one. For example, depending on the amount of equipment you have installed, for example, 30 kilowatts and more than 100 kilowatts, there are different subsidies. If you want to combine with buildings very closely, you will receive a subsidy of 6 cents if you want to use them. In the area of ​​arable land, the price should be lower, probably in such a way. Gradually decreased from 2005, it is reduced by 5%. Like Japan, you do a solar PV system and give 5% subsidies.

We take a look at this picture (PPT). Everyone can see this state. It has a Oktoberfest. They have settled 886 MW by the end of 2005, and we only have 60 MW. This is the case. Everyone looks at this map. Germany has already surpassed 2000 megawatts. After entering the year of 2003, it is a doubling increase. (PPT) This is their state. The total amount of their power generation, Germany compared to us, the sun is very rich, I have lived in Germany for five years, with an umbrella every day. The sun is relatively abundant in the south. In the West, if there are 500 hours of continuous sunshine in each year, there is not much available. While Guangdong is probably 2100-2,200 consecutive sunshine hours, Germany has its own philosophy. They think that we do not care to get too much from the sun. We can get what we need. Their 1,000 watts does not exceed 3 degrees, and we are, on average, more than 3 degrees a day, and 3.2 degrees a little higher, more on Hainan Island. The Germans are completely an environmental protection concept - we use solar energy to generate electricity without reducing anything. In China, coal is the main power generation, but it is becoming less and less.

These are some pictures of Japan (PPT). As you can see, there are several kilowatts per house on the roof, and in Germany, there are several roofs in each of their villages. Our country, especially Guangdong, is a high-rise building. How do we develop it? In fact, China's base has grown very large. You have installed the villas and the demand is very large. There is also a market that is the eastern coast and a developed countryside. Because they all have roofs, unlike the small roof we have in the city. I think the Chinese base is very large. The use of high-end villa districts means that one hundred Suntech companies can supply them. As Germany is also more, Japan and Germany are currently doing the best. At present, the total installed capacity in Germany has surpassed Japan. Of course, in these two countries, everyone can imagine that Japan's energy is all imported, so their development of solar energy is an unwavering choice. The people in Germany are firmly opposed to nuclear energy, so their nuclear power is a headache. So the German government did not have a way. Not long ago, our laboratory came to a German and installed equipment for us. We sold a solar magnetic test equipment.

I think he and I are the same age. I asked him if he had a few kids. He said no. I said if you are not kid-free. The Germans are generally very real. He said that I like it. He said that we are not born. And it's not him alone. The surrounding neighbors are like this. It may be that they were children, all related to the French nuclear power plant, but now they can't find any evidence. Of course, reasonable development of nuclear energy is appropriate, but from this point of view, the Germans started training such concepts from an early age. My children are also in elementary schools in Germany. His teachers taught me what my son should learn from childhood. His The teacher often asked me to talk about Chinese culture. He said that learning physics and chemistry are all bad guys. They have instilled such ideas since childhood, like we are vigorously promoting. This shows that the two countries have different ideas. Especially the history of Germany's environmental awareness. Foreign solar energy development at present is advocacy, because he is more expensive.

(PPT) This is a 19 kilowatt built in the United Kingdom. (PPT) This is the museum of the United States and it is all solar power. (PPT) This is Berlin's train station in Germany. It is also solar electromagnetic. PPT This is Bremen's solar energy, 82 households, the increase is the use of solar energy. This can reduce costs. It can be used as a building material or it can generate electricity. (PPT) This is my picture taken in Germany. Everyone has a look on this roof. There are new German houses that can be built in the beginning. Germany is very interesting. I have been there many times to understand a lot of situations. Many electricians in Germany have been diverted to solar power. Once an electrician gave a match, which was equivalent to its business card, because he changed to solar energy. At present, the world's largest solar power station is in Germany, which is more than 50 MW. (PPT) This is a German local magazine editor who wrote in the morning and watched the meter rotate in the morning. As the sun rises, the meter turned faster and faster until the afternoon, when the sun dropped, the meter slowly turned and stopped. It was booked at 20 euros a day. It used to be a dream. It is now a reality.

(PPT) The current development of this matter, how the solar electromagnetic integration with the building. Today is a housing fair, in fact solar electromagnetic as a construction material has a lot of technical materials to make sure. The first is the type of solar cell: from the color point of view, it is mainly black and blue, and the size is 8 inches, which is relatively small, mainly 5, 6 inches, and the efficiency is 16-20% from single crystal, from polysilicon. It is 15%-18%. There is also amorphous silicon electromagnetism with a lower efficiency of 5-8%. There are other thin-film batteries: CIS-black, inline directly formed, 9-12% higher efficiency. There are some special batteries. (PPT) This is a picture of their various crystalline silicon solar cells. In fact, the solar cell itself is a safety glass. Even if the glass breaks, it will not fall off. PPT means that solar cell construction materials can be directly made into a net. This is what the Germans made of the window, amorphous silicon. These are good examples. It is achieved today. PPT meets the needs of the building in terms of installation structure.

Rich people should pay more attention to environmental protection

In addition, from the current point of view, we can make tracking, make the highest use of efficiency, you can also use the form of hollow glass, can also be made of transparent components. Such as glass walls, etc., but also the most high-end one. The (PPT) installation is exactly the same as the construction, of course, there is a problem with the access line. The other is the same way. I often see that the subway entrances and exits in Guangzhou are made of glass. I think that if the solar cells do it, they will be very good grades. From demonstration to vigorous promotion, from rooftop photovoltaics to architectural inheritance, photovoltaics have become a new building material. The special design and manufacture of photovoltaic buildings in accordance with architectural features and forms are extremely attractive in solar buildings. They try their best to meet the best angle of power generation (roofs); the display solar cells are ornamental. The emergence of solar building design and construction specialists is what we call green building.

In fact, these specialized design companies have already been established in Germany and Japan. This is an emerging industry. I will gradually display some pictures below. I would like to engage in construction. The solar energy building components are also the most attractive and dynamic materials. . Of course, we must say in general that architects in particular should participate. We did some demonstrations. This (PPT) is a model of our laboratory. For example, it is good to have roofs in Guangdong, and we also have flat roofs, that is, flat slopes, and you can do so. Everyone can think of the fact that even if the density of our buildings is one tenth, and one percent, his role is very large. As in the South, the shade, the rain, the curtain wall, the flat slope All are good. For example, villas, upscale communities, etc. are very good, so now I generally promote solar energy to the rich.

I think it is time to begin. Especially those who are rich need to be more environmentally friendly. They use solar energy instead of traditional electricity. I think those who have the financial ability should be able to enjoy. Therefore, from this point of view, it will bring great significance to society. (PPT) is now a battery factory, this is very perfect, all spit out of solar panels. There is a big factory behind. And specifically for building materials, then design and installation. This is a family in Germany. It uses solar energy, uses solar energy to heat, and generates electricity, including its walls and windows. It is to make full use of the sun to survive. It depends on the sun to do everything, of course, the current cost is relatively expensive, such as coal-fired power generation, it is so cheap, this is unreasonable. We did not count the damage to the entire environment, including the impact on the entire environment and ecology, and did not count this account. Therefore, we must conduct a comprehensive scientific investigation.

At present, the number of installations in our country is relatively small, but the existing conditions do not show high grades. Germany, including the United States and other French-speaking countries, are publicists. This is the name "Sun Ark." He is for the earth. This is Sanyo. They have many big companies and they are all engaged in solar energy. They all use solar energy as a new economic growth point for future industries. Because electricity is very safe and convenient, so Japan is All of the companies are like this, so his output accounts for more than half of the world. We can look at its concept of environmental protection, so the Japanese also converted it, that is how many forests it is, is such a concept, the current solar energy is mainly the concept of environmental protection. (PPT) This is a building made in Germany, square or corridor ceiling, very beautiful. Particularly suitable for the South, because the Pearl River in Guangdong, there are many empty places, summer is very tan, there are many people with plastic, it is difficult to see. I will give some important points again. We should go from an independent system to grid-connected power generation, which is more environmentally friendly, safer, and less maintenance. Then from photovoltaic roof to building integration. Building energy consumption accounts for one third of the total energy consumption. Building materials are functional. Each building itself is a solar energy utilization plant. The city has given priority to development, starting with energy-saving and environmentally friendly cities, using existing power grids, peaking, public lighting, and so on. The government took the lead in using solar energy, office buildings, and public buildings to promote photovoltaic power generation. Photovoltaic power generation is the best form of power generation. Simple, clean, and timeless, combined with the best energy combination of fuel cells, eventually becomes the main form of power generation.

In photovoltaic construction, Germany and Japan have taken the lead and represent the development direction of human renewable energy utilization. China should formulate practical development plans based on actual conditions. Photovoltaic and building can be combined perfectly. Now we take the German Schüco company project as an example to understand the actual case of photovoltaic building integration. Solar cells will become one of the most attractive high-grade building materials. Everyone can use these pictures (PPT) to see some of the company's engineering cases and prove what we said. This is a German building that can shelter from rain and rain. From the matching of colors, it is very beautiful. The blue sky and white clouds are very beautiful. (PPT) This is very suitable for our flag building in Guangdong. I think it is very perfect. PPT is very beautiful as a photovoltaic curtain wall in Germany. It must be integrated with the building. The water tank can be placed at home because the housing is very large. However, it cannot be promoted at home, nor does it know why. I once went to Kunming to see that the solar water heaters they used were very successful, but they also had a huge negative impact. The entire city was out of the ordinary. It was a mess, there were pipes everywhere, the urban landscape was very problematic, so there was no unified layout. Many of our country's management departments, especially when building companies have to go one step ahead, including building buildings, think of the use of solar energy in the pipeline, including its perspective and installation, to be considered in terms of integration.

(PPT) This is a photovoltaic curtain wall made in Germany. This is a hamburger. The front is transparent and very dynamic. (PPT) This is a balcony, because this is a bit different, like these countries in Europe, because at higher latitudes, the angles can be a bit bigger, and we are at low latitudes, we are suitable for being around 20 degrees, and sometimes come from styling Not necessarily beautiful, because it is flat. Harbin and Beijing can do this with little impact, and we have great influence. (PPT) This is a very beautiful gallery. (PPT) This is a very exaggerated style. Making a shape on a roof is also power generation, which also plays a beautiful role. (PPT) This is an Italian building. The curtain wall has been fully prepared, and then it is spectacular to decorate it with a solar power system. After adding it, it is not as difficult as the water heaters we make. Many people feel that they must cover it up and fear that others will see it, but I think it must be seen.

(PTT) This is a waiting carport. (PPT) This is Germany's most traditional and earliest, that is, the roof plan, that is, every household has built 6 kilowatts of electricity on the roof. In the countryside, including factories, there are many places in this area. (PPT) This is the role played by insulation and insulation. This is more common. This is a light-transmitting photovoltaic roof, such as a station. First of all, natural light must be guaranteed. However, many current designs in China are unreasonable and cover natural light. We must consider how humans use the sun because architecture itself is a combination of art and science.

(PPT) This is a freeway as a highway. The Japanese people's head is more flexible. He said why solar energy is separated from the south, so they made such an idea. Now let us introduce Guangdong, a relatively advanced photovoltaic plant in Shenzhen, Shenzhen Park Expo Park. At that time I also went, very good. Monolithic MW is also rare in the world, because solar energy is not only the world's largest, some say that I am the largest power station in the university, and some say that I am the largest in the middle school, constantly refreshing the world. the first. Shenzhen will soon be overtaken because the country has announced this year that China currently has to build 4-5 one-megawatt power plants. One is Shanghai, one is Beijing, one is Chengdu, and the other is Tibet. Some people in the country have already designed and built an 8-megawatt photovoltaic power station in Dunhuang, because the Japanese proposed to build one along the Silk Road. One is Yahoo's proposal: China will build a 100-megawatt photovoltaic power station in Dunhuang. Of course, this is only a reference. If it is built, it is very expensive. Of course, a few tens of megawatts will be built in Spain. I think we should have plenty of room for development in Guangdong. One is the large squares and buildings in the city, and the other is a high-end community. There are also many islands in Guangdong. The use of coal to generate electricity causes a lot of pollution. Wind power generation is not ideal, but Solar power is a very good choice.

(PPT) This BP Solar photo gift given to the Guangdong provincial government, because this year a Norwegian solar energy delegation visited our institute and made a report. Of course, it was also criticized. We said that China is developing very fast and we are also very surprised. However, if the frontier turns, we say that our energy consumption is very severe and the pollution is very serious. They said that it is not surprising that your solar renewable energy is developing too little. This is not suitable, and it is less than 1%. Case. The other is BP. They do oil, but they advertise the sun all day. The newspapers in Guangdong and Shenzhen advertise solar energy. They have an ad saying: If we can't catch up with the Sun, we put it. The sun is on the horse. When solar energy is in the west, it is not only a matter of lighting, but also a problem that has changed the destiny of many people. There are lights to read and write. Another newspaper also has two sentences: Oil is decreasing day by day, but the sun is rising every day. BP is not only petroleum, but also promotes solar energy. However, China Power did not do so, Southern Power did not promote these things, but the foreign companies gave us classes. And BP they did. They gave us a PV power station worth US$2 million. It will be installed next to the university city next year. It is such a styling that is unique, so the solar photovoltaic power station that is designed out of foreign countries. Are unique. It is also a pity that there will be a miracle in the world in Guangdong, but it is not alright now.

(PPT) This is a design proposal for the Guangzhou TV Tower. They used the feng shui concept of China, set up a tower to 660 meters, the height of the curtain wall is 500 meters and so on. The entire south facing is solar, and then the above There is a solar fan, and it's redundant to send it to the grid. But unfortunately, the Guangzhou government did not use it. The other one is, and it is rather regrettable, Guangzhou has a very spectacular architecture. For example, in Pazhou's new pavilion, the orientation is natural to prepare for solar energy, but it is a pity that there is no solar energy on it. All of it is stainless steel. If solar electromagnetic panels are used, it is very beautiful, and you can do several things on it. Megawatts of electricity can use 5,600 kilowatts of electricity, which is not what a venue is. Why do I think it is stainless steel? I feel very sorry. There are also new stadiums, such as the south-facing ground, but maybe others have their own reason.

This is also true of our Olympic Center, especially large buildings, but in the West it is covered by solar panels without exception. So why do we promote solar cells? (PPT) This is the Guangzhou Science and Technology Center. It has now been built. It was originally a kapok shape, but we now call it an aviation rocket. Above, we have engaged in a three-megawatt power plant that is the first in the world, and the Germans also visited it. It is said that only China can do it, but when it was designed, it had no money. Now the building may be 21 A hundred million we just got a project, a tender, but the money is too little, only 1 million, I later thought that such a small amount of money, simply can not do anything. The gift that BP sent just now is in front of this, because this is northeast facing, and BP is just in front of it, facing south, we are in the subway exit, until the hall, build a photovoltaic promenade, for example is 100 The meters are long and 60 meters wide. Let's see if the Science and Technology Department can give us a little money to build such a gallery. This may be the world's first photovoltaic promenade. We have three buildings, we must have an organic building, and we must not be inferior to BP in terms of styling and momentum. I think there is plenty of room for the development of Guangzhou. We do a design here. If we say that in Guangzhou, looking for an angle, a more appropriate angle, and engaging in a 3-kilowatt system, we can calculate that we can generate more than 2,000 kWh per year, and we can also reduce coal consumption by 1.07 tons. Reduce CO2 emissions by 2492Kwh. From the ordinary people's environmental protection concept and economic level can withstand, of course, the government must give a certain amount of subsidies. However, there are still some scholars in the government who are unconvinced. Many believe that China’s power generation depends on nuclear power. However, there is now a Chinese academician, He Wei, who originally supported the development of nuclear energy. However, he is also strongly advocating the development of solar energy. However, there are The academicians openly objected. So I was thinking that Germany and the Japanese are stupid?

I introduce our work. Our solar energy research institute established at Sun Yat-sen University has a certain influence in China. We have planned several national conferences. We have a very close relationship with many companies in China. We are mainly engaged in solar cell batteries, including applications. Activities, semiconductor lighting, undertaken nearly 20 photovoltaic buildings in Guangdong, now is more than 10, is the national "Eleventh Five-Year" project, you can welcome everyone to visit our system Institute, a university building now a The layers are ours, including more than 1,000 square meters of experimental benches, two photovoltaic roofs, and are now connected to the grid every day. Every day, there is a collection of power generation data. In Phoenix, there is also a Sanya. For real estate, the future will be 100 kW. Now it is more than 40 kW. (PPT) This is the courtyard photovoltaic ceiling in Phoenix. This is the most luxurious hotel in Phoenix. The entire construction cost is 400,000 RMB, but it is nothing with the whole building. PPT is also a project of ours. It is a transparent model. Now it is connected to the grid to generate electricity. Data is collected every day and it has just been completed. Because the main building has not come out and is undergoing renovation, the requirements are relatively high. This is facing the Phoenix City Hotel. It can be said that it is the largest household system in China and it will not be exceeded for many years. (PPT) This is looking from the bottom up. It is spectacular and beautiful. The brackets are in red. Others have not engaged.

(PPT) This is a real estate in Sanya. There are 13 buildings in total. Now it is 4 buildings. Its boss is from Norway. He saw a newspaper that talked about a company with Shenzhen. Seen on the plane, after seeing it, through the company eventually found us, said that the concept of solar power generation, because Sanya's real estate is international, does not mean that the locals often live, 30% are resident . The small two-bedroom resorts are resort-oriented and go two or three times a year. There are usually no one. The concept is that every household is ventilated. Ventilation is the use of solar power to generate electricity, the other is a corridor is solar energy, buy real estate solar power, is to increase a little money per square meter on it, within a day all real estate sales are completed, creating a miracle. Originally they did not do more than 40 kilowatts, but now they have to do more than 100 kilowatts. Now my two doctoral students are still in Sanya. They are all facing south, so the development in Sanya is very impressive. If the country immediately wants to give out an electric aid of 5 yuan, or 4 yuan, it will be a big deal. And the price of the country has not come out because the raw materials are not in our country and the silicon wafers are imported from abroad, so there is also a technical problem in this. (PPT) This is a photovoltaic roof appearance. This is a transparent type, that is, without building materials, it can be transparent, it can also be light, we are all collecting data, what is the daily power generation data. Through our research, especially the cooperation and understanding of the construction department, we also hope to be supported by government departments. In the design specification of photovoltaic building integration, many technical things need us to explore and accumulate, including us, we must vigorously promote it after decades. , Now we need some technology and experience, and the combination of solar thermal and photovoltaic, so that our efficiency will be higher.

The other is to collect electricity in the Pearl River Delta, such as in Sanya. It is hoped that the Guangdong TV station can report on how many kWh of electricity it has in Guangzhou, and how many kWh of electricity it has. The weather forecast is such a situation. PPT Guangdong has a very good foundation for the photovoltaic industry, and the government attaches great importance to energy conservation and environmental protection. I think that Guangdong should be in line with the developed countries. Hong Kong has done a very good job. There are two megawatts of Hong Kong's total. Shenzhen is also here at the time of the "Eleventh Five-Year Plan," which is 3 million square feet. The meter construction area is for solar applications, 2 million square meters for light and heat utilization, and 1 million square meters for photovoltaic applications. The Guangdong Provincial Department of Construction's opinions on the utilization of light and heat have also come out. Solar-powered semiconductor lighting, along the rivers and coastal landscapes are also used for solar photovoltaic promenades, and the Pearl River Delta Urban Indoor Rain Solar Sports and Recreation Plaza. Then, Guangdong should be able to take the lead in building a number of iconic solar buildings in China. At the same time, Guangdong is going to take the lead in setting up PV generation in the solar construction model.

We think that we have no way to compare with Jiangsu, because their governments strongly support this, like Suntech is more than 40 billion, photovoltaic is a few tens of billions, Jiangsu has about a dozen such companies, Guangdong, Some of the original ones are far ahead of them. They are one or two billion, but they can't do it now. I think Guangdong should be applied. Suntech was the first to establish Shenzhen Suntech in Shenzhen. Because we must grab the front in the application, but can we come in front of the building? For example, we can build a community and use some data. I think there is a lot of room for the development of Guangzhou. I would like to talk about our experiences with solar energy. Welcome to discuss. I hope our Guangdong will take the lead in solar energy applications. thank you all.

[Moderator (Chen Zhiquan, Chairman of the Guangdong Provincial Real Estate Association)] : Thank you, Professor Shen Hui for his authoritative speech. He has a better understanding of the domestic situation and the foreign situation. There are many concrete examples to illustrate the current domestic and foreign In terms of development, we once again express our gratitude for his authoritative and high-level speech. I would like to say that solar energy is inexhaustible and inexhaustible. It must be more durable than any energy source. It is infinite as a source of energy. Every second of sunlight that is thrown onto the earth is converted into energy. With 277 million kilowatts, the nation’s human population of 6.5 billion consumes only a few percent of it, so solar energy is infinite, and our energy is becoming less and less.我到阿联酋参加过一个能源展馆,有一个地图,用直径大小的圆来标志每个国家现有的可再生能源和不可再生能源的储藏量,中国是最小的,我们这么大一个国家,土地占世界第二位,但是我们的能源储量却比别人小,所以不能再发展不可再生能源发展了,现在要大力开发使用风力和太阳能,尤其是太阳能,现在各行各业都要研究,尤其是房地产建筑业,一定要研究,如何使用太阳能,如何使太阳能实施与建筑做到一体?

我们随着广东省步伐慢了一些,但是起步要高一些,这些我们省房协致力于这方面的努力,四年前就搞了一个绿色住区标准,到现在已经有80多个了,都在鼓励使用太阳,两年前,广州市恒大,来研究建解决此问题,一直没有什么成果,但是最近我们到恒大,他们的董事长我们讲到这个,他说我们搞,拿出一栋别墅,选择位置最优越的别墅来实验,省房协和太阳能协会的秘书长今天也在,广东省科学能源研究所,恒大公司一起研究定了一些原则,最近进展不错,我们一定要用蓝色的深颜色的瓦做太阳能的发电,然后搞上了玻璃,做太阳能瓦,现在广东省分院已经把它作为专利申报了,如果这方面能够研究出成果的话,我们会大力的推广,作用广东省内部来讲,深圳比广州好,广州是国内的特大城市之一,但是反应迟钝,省政府的支持力度不够,要尽快形成文件和政策,大力支持太阳能的发展。因为我们的太阳能企业是在退化而不是在增长。而山东的发展很快,尤其是皇明这家企业,去年一年,光太阳能税收是7千万,是世界上太阳能企业产量最高的。所以广州应该后来居上。希望在座各位,对太阳能比较关注的,大家不仅要自己干,而且要大力宣传,把广东省的太阳能的事业尽快做起来。谢谢各位。

【听众提问】 :请问广东的住宅小区里面,推广使用太阳能的难点主要在哪里?因为我觉得,广东的住宅小区我看了一下,我觉得我们的住宅小区的老板们在这个方面好象是积极性不高,他们主要考虑的是技术的问题,还有成本问题,因为我在太阳能这块,我是门外汉,我想请问一下沈辉教授。

【沈辉(中山大学物理科学与工程学教授)】 :这个问题我很难回答,因为,广州的房子太好卖了。另外就是推广起来还是有很多的机会的,比如说,大家知道,一个小区里面,离不开照明的,特别是花园我认为太阳能是一个非常好的切入点,因为小区里面经常要施工的,现在基本是220伏的,要拉线很麻烦的,而太阳能是比较好的,比如装一个小灯,也很安全,这个是关键,因为小区里面总是有儿童和很多人,从这点上来看,作为一个公共照明很好,可以用太阳能电池。中国现在热水器做的很大,但是做的不是很规范,有的价格很低,有这样或那样的问题,有的说热水器没有什么用,其实都是一个误解,如果技术上没有问题的话,如果把价格压很低,当然会出来一些劣质品,但是我觉得太阳是能一个好东西,我们大家要爱护他,建筑里面,要下定工夫,如果首先用的,首先是一个卖点,而且掌握这套技术,我觉得这个还是有很多发展空间的。 Thank you.

陈之泉:小区建设要大力鼓励使用太阳能

【主持人(广东省房地产业协会会长陈之泉)】 :现在开发商,为什么对使用太阳能不太积极,可能是认为增加成本是一个主要原因。现在我们看这个问题,不能够只看建筑期间的成本,我们要按照建筑物生命周期来核算成本。过去我们设计阶段,核算设计的成本,施工核算施工阶段的成本,这个不符合可持续发展的。我们应按照建筑物的生命周期来核算成本的,这样的话,如果用太阳能就更划算,因为建筑物有几个阶段,施工阶段和使用阶段,而使用阶段更长。所以我们要有一个社会责任感,从这个方面考虑,就会想得通。另外一个是小区建设,要大力鼓励使用太阳能。首先是供热系统,解决洗澡用热水问题,同时要鼓励供电的使用,就是光伏发电,走廊的照明、草地的照明、室外的照明,这些过关了,然后解决室内的家电照明,应该这样做。国外的技术是很成熟的,不要担心,至于价格问题,在大面积推广肯定会降下来,现在之所以高,只是少数人、少数地方使用,价格肯定高。欧洲的能源局局长讲,将来的电价可以降到4美分,这个我们可以承担起。

【听众提问】 :我现在提出一个问题,我在湛江住宅小区,经济不太发达,老板也是第一次搞房地产,但是他说他受我们省房协陈会长的影响,在住区里面使用了太阳能的路灯等等,但是他跟我说这些灯的技术很不过关,他们的电工老是要修,我问的就是省内的太阳能的厂家的技术,哪家的技术相对过关一点?

【主持人(广东省房地产业协会会长陈之泉) 】:我们广州、深圳、中山这几个城市都有太阳能企业,只有至于哪一个更好一点,还不知道,只有大量使用了才能够知道。今天的论坛到这里结束,谢谢各位。

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