Returnees build their own "power plant" to transmit 8 kilowatts to the power grid, with a subsidy of 1 10,000 yuan.

[liuxue86.com] Covers the whole process of overseas students studying abroad: "Returnees build their own" power plant "at a cost of 1 10,000 yuan to transmit 8 kilowatts to the power grid" reported by Shanghai Overseas Chinese News Network on March 4. He told reporters: "Japan stipulates that every primary and secondary school must be equipped with at least 20 kilowatts of solar power generation equipment. There are more than 36,000 primary and secondary schools in Japan. How big a market do you think this is? " In sharp contrast to the ambitious forecast of the Japanese market, Zhao Chunjiang is helpless about the solar power generation equipment at home in Shanghai.

"Family Power Plant" on "Cliff"

Where is the smallest power plant in China? I tell you, it's on the roof of a 13 floor residential building in Xinzhuang, Shanghai. Zhao Chunjiang is the only staff here. He is an engineer and a meter reader. In addition, he is the actual investor of this "home power plant".

At present, the only one in China has installed solar photovoltaic power generation equipment at home and connected to the power grid.

"My solar power generation equipment was installed on June 5438+February 10, 2006, and it was completed in three days, and power generation officially started two days later. Up to now, it has been safely trouble-free and maintenance-free 1537 days, and accumulated power generation 12830 degrees. " For more than four years, Zhao Chunjiang's "comment" has been told to more than 100 Chinese and foreign media, but he still tirelessly introduced and appealed: "The domestic solar cell power generation technology is mature, and if it is not promoted, we will fall far behind Japan and Germany."

While listening to the introduction, the reporter held the eaves and followed Zhao Chunjiang forward. The wind at an altitude of more than 30 meters blew on him without cover.

/kloc-the foothold outside the window sill of building 0/3 is like a cliff, less than half a meter wide, and if you take a step back, you will fall downstairs. A photographer who is 1.8 meters tall has to take pictures with one hand and hold the eaves with the other.

Standing outside the windowsill, the eaves are shoulder-high. The reporter saw 22 solar panels with a size of about 1 square meter laid flat on the slope of the roof. The panel is slightly inclined and keeps an angle of 25 degrees with the horizontal.

"The total area of 22 batteries is about 2 1 square meter, and the total power generation is 3 kilowatts. For a family of five, this size of power generation equipment is enough. " Zhao Chunjiang regards every reporter's visit as an opportunity for popular science. He pointed to a red box on the wall and told the reporter, "This is an inverter that turns DC into AC, and only electrical appliances that turn AC can be used; The silver-gray box next to it is an AC protection switch box; This real-time meter, together with the photovoltaic panels on the roof, is a complete set of equipment for the home power plant. "

Environmental protection life of 8 TVs and 4 refrigerators

20 1 1 year 1 month, the household electricity consumption of many Shanghai residents soared, and the sudden surge in electricity bills puzzled many people. The electricity bill of Zhao Chunjiang's home in June this year was as high as 5438+ 10/800 yuan. His aunt told us: "Last June, 5438+065438+ 10, the electricity bill was more than 400 yuan, and in February, 65438+February, it was more than 500 yuan. I don't know how it increased so much last month. " Of course, this electricity was not dropped by the Zhao family, but was supplied to the large power grid by the Zhao family.

"Because of the installation of solar energy, electricity consumption is more refreshing." The electricity consumption of Zhao Chunjiang's home is really cool. In this 400-square-meter duplex room with attic, there are 8 TVs, 4 refrigerators, a central air conditioner, several split air conditioners, computers, water dispensers and many other household appliances.

According to Zhao Chunjiang's observation, Huangmeitian has the least power generation in June, followed by 65438+February and 65438+ 10, while the power generation in April and August is the highest, with the monthly power generation generally exceeding 350 degrees, with an average of 12 degrees per day.

"You always say that solar power saves money, but why do we spend so much on household appliances?" The old man at home once asked Zhao Chunjiang like this. Zhao Chunjiang always patiently explained: "The increase in electricity bills indicates that solar power generation is effective. In order to prevent electricity theft, all installed meters in the power sector can only run in the forward direction. Whether it is' downloading' or' uploading' from the big power grid, the stopwatch number is the same. "

Solar power generation equipment is "good but not cost-effective"

In 2006, Zhao Chunjiang spent 654.38 yuan+200,000 yuan to buy and install solar panels and other equipment. "Now buy and install such a set of equipment as long as 90000 yuan is enough. Ordinary construction workers can successfully install it in a few hours with a little training. "

Is this investment worth it? Zhao Chunjiang calculated an account: 1 kW solar power generation equipment, and the current market price is about 50,000 yuan. If calculated according to the service life of 50 years, the cumulative power generation can be about 42,000 kWh, which is equivalent to the average electricity price 1.2 yuan per kWh. At present, the electricity price in Shanghai is 0.62 yuan per kWh, which is just twice the ordinary electricity price. In Japan, a family of four consumes less than 4000 kWh of electricity a year. "China household electricity consumption is slightly lower than this. Therefore, if there is an installation subsidy and a suitable' leftover electricity' repurchase price, it will be a great encouragement to users. "

However, many neighbors still feel after visiting: "Things are good, but they are not cost-effective."

However, Zhao Chunjiang still insisted: "I built this for scientific experiments and accumulated for future promotion. Otherwise, many people will ask, Miss Zhao, you always say that solar energy is good. Why not install one in your own home? I just want to give you a demonstration. "

For those unfairly paid electricity bills, he smiled happily and said, "This is a contribution to science."

Returnee scholar: Everything is ready except subsidies.

More than four years later, Zhao Chunjiang is still a lonely pioneer, and his "home power plant" embodies the problems faced by the solar photovoltaic industry in China: serious shortage of domestic demand and insufficient government support.

How to solve these problems? When the reporter walked into the 20 1 1 International Solar Energy Industry and photovoltaic engineering Exhibition with questions, he was surprised to find that the photovoltaic industry is one of the industries with the largest concentration of returned entrepreneurs in China. From the stone of Wuxi Suntech, an industry giant, to many small panel processing factories with only a hundred workers in the Yangtze River Delta, a considerable number of entrepreneurs are returnees.

Chi Jianmin, investor relations manager of Wuxi Suntech, told reporters with emotion: "These returnees have come back with advanced technology and ideas. They are pioneers in the photovoltaic industry in China."

During the exhibition, many entrepreneurs and scholars from overseas returnees made suggestions for the solar photovoltaic industry in China.

Zhao Chunjiang pointed out that China's policy is very supportive of the solar photovoltaic industry, but it lacks implementation rules. This makes many policies empty talk.

As early as June 5438+1 October1in 2006, China began to implement the Renewable Energy Law to support the development of photovoltaic industry. In 2009, Shanghai issued the document of "full repurchase of green electricity", but there are still no specific implementation rules.

For more than four years, Zhao Chunjiang has not received any subsidies or subsidies from the government. Although hundreds of media have interviewed Zhao Chunjiang, no government official has contacted him.

Zhao Chunjiang believes that the repurchase price should fully consider the cost recovery cycle. "If it is a home user, it is more reasonable to recover the installation fee around 10. You see how much oil prices have risen these days. It costs a lot of money to import oil transportation in China. It is urgent to develop solar energy, and subsidies can no longer be delayed. "

Returnee entrepreneurs: let solar energy shine domestic demand

China's solar panel output ranked first in the world for four consecutive years, but Zhao Chunjiang told reporters with anxiety: "China enterprises only got the first place by eating subsidies from foreign governments."

Due to the lack of subsidies and substantive support policies, domestic market demand has been suppressed, and domestic enterprises have to rely on foreign government subsidies to survive. "You can cut off your rations at any time," Wang Jin, a solar cell manufacturer and returnee studying in Japan, told reporters at the exhibition site. "The best way is to implement the on-grid tariff of solar power generation to stimulate domestic demand."

Wang Bohua, secretary-general of China Photovoltaic Industry Alliance, told reporters that China has become the largest production base of solar electronic panels in the world, but more than 95% of them are exported. In other words, in the world competition of environmental protection economy, China's photovoltaic industry, with dazzling labels such as "high technology" and "new energy", has actually become a processing power again.