Solar home appliances will become a new hot spot in the industry

Air conditioners do not need to be plugged in, and they can be started using solar energy. This is a reporter's personal observation of the operation of solar air conditioners in Shunde, Guangdong. Recently, the United States, Gree announced the introduction of solar air-conditioning, new fly launched solar refrigerators, home appliances have emerged with the new trend of solar technology.

Home appliances also use solar energy

On December 10th, Midea launched Q-HAP solar air conditioners. The first batch of two one-piece and one-half solar-powered air conditioners have passed the national 3C compulsory certification and are launched in the Chinese market to enter ordinary families. Wu Wenxin, president of Midea Refrigeration Appliances Group's domestic air-conditioning business division, revealed that Midea has mastered a complete set of mature solutions for solar air-conditioning technology and has a total of 13 invention patents, establishing a patented technology protection pool. In the future, this technology can also be replicated in refrigerators, washing machines and other products, so as to form a more complete solar home appliance product line to meet the needs of different groups and markets.

It is reported that Midea's Q-HAP solar air-conditioning technology is a combination of "quasi-DC grid-connected technology," "efficient conversion technology," "adaptive MPPT technology," and "priority solar energy use technology." The reporter saw at the scene that the air-conditioner gave priority to the use of electricity generated by the solar panels, and when the solar power was not enough, it was supplemented by electricity from the grid.

In addition, Gree also announced recently that its solar inverter air conditioner offline, Gree Chief Engineer Huang Hui introduced, after scientific and technological research, Gree will integrate solar photoelectric conversion technology and Gree G10 frequency conversion technology, developed a solar inverter air conditioner. This type of air-conditioner uses solar energy as the primary energy source, and the deficiency is supplemented by the power grid.

In addition to solar inverter air conditioners, solar refrigerators also appeared for the first time in the market. A few days ago, Xinfei Electric launched a solar-powered computer-controlled temperature-controlled refrigerator. Gao Jialin, chairman of Xinfei Electric, said: "The refrigerator uses photovoltaic effect, so that the sun shines on the silicon material to generate electricity directly to generate electricity, cooling the refrigerator. It has achieved zero emissions and zero pollution of the refrigerator products, zero grid power consumption. ”

Breakthrough in solar energy application

The emergence of solar home air conditioners and refrigerators immediately aroused great concern in the industry. At present, companies that have launched solar home appliances have achieved breakthroughs in their own technologies. Taking air-conditioning as an example, the technical difficulty of combining solar energy with air-conditioning is that the demand for the capacity of air-conditioning varies from time to time, even if it changes drastically. Solar-power generation is difficult to adapt to, and there is also the problem that the efficiency of solar-power generation cannot be used with maximum efficiency. "The United States has solved these problems to the greatest extent through 13 invention patents," Wu Wenxin said.

The introduction of solar home appliances in addition to achieving technological breakthroughs, the greater significance lies in finding a household fit point of solar power generation, energy-saving emission reduction effect will be very obvious.

Professor Shen Hui, director of the Institute of Solar Energy Research at Sun Yat-Sen University, told the China Electronics News: “Since solar power has always been used, China is a big producer, but it is not a big country. The actual situation in China determines that solar power is expensive and pricing is difficult. Globally, photovoltaic power generation is the trend, and coal, oil and other energy sources will become less and less, and only solar energy can provide energy forever.The advent of solar home appliances has found a good home for solar energy. ”

Shen Hui told reporters that at present, solar power has been taken seriously by various countries. For each kilowatt-hour of electricity generated by solar energy, 360 grams of coal can be consumed. In terms of emission reduction, it is equivalent to reducing the emission of 1 kilogram of carbon dioxide. By 2020, 12% of electricity generation in Europe will be provided by solar power generation, 10% of electricity generation in the United States will be replaced by solar energy, and Japan’s plan is 10%. China’s relevant plans are also under development.

“The world is advocating low-carbon, low-carbon and everyone-related. Solar power generation generates direct current, just for home appliances, solar air-conditioning come out, found a breakthrough for ordinary families using solar power.” Shen Hui said.

The data shows that in 2009, China’s air-conditioning power consumption has exceeded 540 billion kilowatt-hours, which is equivalent to the total power generation of the six and more Three Gorges hydropower stations. Li Qiang, director of Midea Air Conditioning Research and Development Center, said: “At present, the installed air conditioners in China have more than 150 million units of installed capacity. If 30 million households or places use 250 watts of effective solar power, they will generate 7.5 million kilowatts of daytime peak power. , Efforts to ease the use of electric power and produce great social and economic benefits."

Wang Jianhua, vice president of operations of Xinfei Electric, said: “At present, the refrigerator capacity in China has reached 200 million units. If the country’s refrigerators all use solar energy as energy sources, it will reduce carbon emissions by 36.6 billion kilograms per year, equivalent to a one-year emission of 3.3 million vehicles. In addition, in some areas of China that have not yet been included in the power supply network, solar refrigerators are also a good tool for storing food and medicine.”

Expecting financial subsidies

Although solar home appliances have just come out, but major home appliances companies have been aggressively promoted. Midea's solar air-conditioners are expected to reach 50,000 units in 2011, and have signed 100,000 orders in overseas markets. The first batch of 50,000 units of Gree solar air-conditioning products were all supplied to the US market, and Gree will launch this air-conditioner for the domestic market thereafter. Xinfei solar air-conditioning has reached a market application stage that can be customized in batches and widely promoted.

Although solar home appliances, experts and companies have expressed great interest in its prospects, but the reporter learned that the current promotion of solar home appliances, the first bottleneck to break lies in the price. Taking solar air-conditioning as an example, there is a solar panel price difference between the US solar air conditioners and inverter air conditioners of the same specifications, and the price of solar panels is related to the area. The price of a 1-watt solar panel is around 16 yuan, which also means that a 100-watt solar panel needs more than 1,000 yuan.

Wu Wenxin told reporters: "Solar air-conditioning will be more than 1,000 yuan more expensive than ordinary air-conditioning, we hope that solar air-conditioning can get the state-related subsidies, so that every watt of solar panels can get about 4 yuan subsidy, so the price can be relatively reduced."

When Wang Jianhua asked about the price of solar refrigerators, he bluntly stated: “Now the price will be high. In the future, we will work hard to reduce costs and make consumers more acceptable.” This also means that solar air conditioners and refrigerators need to be popularized. Support, cost reduction, and consumer acceptance.

Reporter Comments

At present, China's home appliance industry has been in a period of transformation and upgrading, and it will become the main direction of the enterprise in the future. In technological innovation, we are pleased to see that many home appliance companies have begun to lead the industry's development direction, while the technology short board is constantly making up for.

On the basis of frequency conversion technology, solar inverter air conditioners and refrigerators were successfully developed by Chinese mainstream companies at the first time, and the industry’s next technological commanding height was set by Chinese companies. We expect that in the future more home appliance companies will upgrade their products around technology and promote the transformation and upgrading of China's home appliance industry.

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