Hanergy Solar Power Vehicle Release: Analysis of Six Major Issues

The advent of the intelligent era will not only drive the advancement of technology, but also the innovation and transformation of economic and social forms, which will ultimately enhance the efficiency, convenience and security of our lives and work. On November 17, “2016 China High-Tech Industry Conference” was grandly opened at Sheraton Shenzhen Grand China Hotel. Focusing on the forward-looking topics of the smart industry, the conference focused on "smart + era - perceive the future and cross-border symbiosis", bringing together high-level executives from home and abroad, industry elites, experts and professors, around photovoltaics, LEDs, In-depth exchanges were held on topics such as development of display, artificial intelligence, robotics, etc., market status, and future development directions.

Zhang Bin, senior vice president of Hanergy Holding Group, delivered a speech at the conference on the theme of “Hanergy Solar Power Vehicle: New Choice for Future Green Travel”, focusing on why to do solar cars, what kind of solar cars to do, and the next step. How to do the solar car and other industry insiders concerned about the focus of the issue was analyzed.

In his speech, Zhang Bin made predictions on the development of new energy vehicles and solar vehicles. At the same time, Zhang Bin said in his speech that China is in the midst of tremendous changes in economic restructuring and industrial transformation and upgrading. New energy has become a strategic choice for global energy sustainable development. In the next three years, China's thin film power generation application market will become the world's number one, and China's thin film power generation technology will become the world's number one in military defense and aerospace applications.

Then we don't have to ask: Can Hanergy Solar really break the barriers to new energy vehicles? Let's take a closer look at Hanergy's all-solar electric vehicle, which leads to six major problems to analyze with you!

1. What is the cruising range?

The cruising range is one of the core indicators for measuring electric vehicles. It is also the primary evaluation indicator for consumers to purchase electric vehicles. In China, the cruising range also involves the level of state subsidies. Therefore, car companies often try their best to find a comprehensive balance between cruising range and overall design. How does Hanergy Solar Power Vehicle design the cruising range?

According to Gao Weimin, CEO of Hanergy Automotive Division, Hanergy Solar's surface is about 3.5-7.5 square meters of thin-film solar power generation equipment. Under standard sunlight, it can be used for 5-6 hours per day, which can generate 8-10 degrees of power and drive the car. 80 kilometers or so.

This core technology is extremely disruptive and is the leading cause of doubt. One of the doubts is that the cruising range is only about 80 kilometers, which is far from satisfying the owner's demand for electric vehicles. For example, the current mainstream electric vehicles have a range of more than 260 kilometers. Many consumers still feel that they are not enough. The Hanergy solar-powered car only lasts for about 80 kilometers, which obviously cannot overcome the consumer's mileage anxiety.

In this regard, Hanergy's explanation is: Hanergy solar cars are also equipped with conventional lithium batteries, and can also be charged with charging posts. When the weather and the use environment cannot meet the solar power demand and the solar power is used up, the charging pile can still be used for charging. In addition, under the conditions of sunshine, solar cars can be charged while driving, further replenishing the power and increasing the cruising range. Hanergy said that the continuous uninterrupted cruising range of Hanergy Solar Power Vehicles can increase the maximum cruising range to 350 kilometers, which is 10%-15% higher than that of traditional electric vehicles.

Hanergy is not the first case to install solar panels on new energy vehicles. Previously, a car brand had a similar approach. However, the car's solar power was only used to power the car, not to drive the car. In view of this, Hanergy has added a new category to the new energy vehicle, that is, the "electric hybrid" vehicle, which uses a charging pile to charge and solar power to drive the vehicle. This concept and model is still worthy of innovation.

The second question is: Is there any moisture in the cruising range? The information given by Hanergy is: Every day under standard sun, power generation is 8-10 degrees, driving the car for about 80 kilometers. However, according to the current situation of electric vehicles, 8-10 kWh does not drive the car to 80 km.

At present, the level of pure electric vehicles is about 7 kilometers. For example, the battery capacity of the Beiqi EV200 is 30.4 kWh, and the cruising range of the comprehensive working condition is 200 kilometers. On average, it is about 6.679 kilometers for one-degree electricity and 65.79 kilometers for 10 degrees. The Tengshi EV300 is equipped with a 47.5-degree battery, with a comprehensive cruising range of 300 kilometers. It has a battery life of 6.32 kilometers and a 10-hour power range of 63.2 kilometers. The Emgrand EV is equipped with a 45.3 kWh battery, with a total operating life of 253 km and a life of 5.58 km. The Beiqi EU260 is equipped with a 41.4 kWh battery. The total operating range is 260 km, which is about 6.28 km for one-degree electric power and 62.8 km for 10-degree electric energy.

However, the weight of the above-mentioned conventional electric vehicles is relatively heavy. For example, the tempering quality of the Tengshi is 2090 kg, of which 550 kg is the battery. The weight of other cars is also about 1.5 tons, and the higher car weight naturally reduces the cruising range.

According to the information released by Hanergy, the load of Hanergy Solar Power Vehicle is relatively light. For example, Solar L has a weight of 700 kg, which is twice or more lighter than the above models, so the cruising range will increase.

It is reported that lightweighting is one of the main directions of Hanergy's full solar power vehicle technology. Under light weight conditions, it is entirely possible to drive a solar car for about 8 kilometers. With the speed of the development of new materials, it is not impossible to achieve a vehicle weight of 0.5 tons in the future, thus further increasing the cruising range. The data shows that such lightweight materials have been introduced and applied abroad.

Will the weight of the film chip affect the battery life? According to the information disclosed by Hanergy, Hanergy thin-film chips are also lightweight, and the current weight is one gram per watt. From this calculation, a car with a 3.5-7.5 square meter film chip, the added weight is very limited, will not affect the weight and cruising range. Hanergy said that today, with the ever-increasing demand for lightweight vehicles, one gram per watt will not become a burden for automotive product development.

Second, how much electricity can you send every day?

The core technology of Hanergy Solar Power Vehicle is thin film solar power. Gao Weimin said at the press conference that Hanergy's high-efficiency GaAs solar chip technology has a conversion efficiency of 31.6% and generates 316W per square meter per hour under the standard sunlight intensity (1000w/m2). If there is 6 square meters of receiving area per car. There are 6 standard sunshine hours per day, and the amount of solar power generated per day is 11.3 degrees. Assuming that 90% of the energy can be integrated into the energy storage battery pack to drive the vehicle, the cruising range is more than 80 kilometers. According to the weather forecast and solar radiation data of the past years, the annual mileage of a vehicle's electric energy from sunlight will be more than 20,000 kilometers.

But many people believe that solar power is not enough to support the car's life. Especially in the rainy and cloudy days and in the foggy city, solar cars are caught.

This kind of worry is not without reason. It is well known that due to different geographical conditions, the annual total amount of radiation received by each city is very different. For example, Chongqing's annual total radiation is only 912.33 (kwh/m2/year). According to the existing technology, the solar energy obtained by solar electric vehicles in Chongqing can only drive the car for 1,5082.1 kilometers.

In this regard, Hanergy has given a series of solutions: for example, designing a movable covered windshield or telescopic expansion charging ceiling tail, etc., to maximize the sun's light when parking, the area can be expanded to 14 square meters, and thus increase Too much power generation and cruising range.

Another problem is that the standard light intensity of 1000 watts per square meter is not always there. Hanergy disclosed that GaAs technology has the advantage of weak luminescence. It can also generate electricity in the morning, dusk, and cloudy days. It is a good supplement, and there is some energy increase in unfavorable lighting conditions.

Another way for Hanergy to increase solar power generation is to continuously improve energy conversion efficiency. The conversion rate of Hanergy GaAs thin film power generation has reached 31.6%. Although it is the highest level in the world, there is still much room for improvement. Hanergy’s internal target is to increase to 38% in 2020 and 42% in 2025. . As the conversion rate increases, the power generation and cruising range of Hanergy Solar will also increase.

Third, is the price expensive? It is said that the cost of the exhibition car is 200,000 US dollars?

The high cost of the car is another judgment in the industry for the Hanergy full solar powered car. Some people believe that although Hanergy GaAs technology has achieved a conversion rate of 31.6%, the cost is very high. According to legend, the cost of the project prototype released this time reaches 200,000 US dollars. Undoubtedly, such cost will greatly hinder its quantity. Production and marketization process. In addition, Hanergy solar cars are also equipped with conventional lithium-ion batteries, the current cost of lithium batteries is also high, half of the cost of a traditional car is the cost of lithium batteries. The Hanergy solar car is equipped with lithium batteries and thin-film solar devices, and the cost will increase.

Of course, it is obviously unfair to infer the price of future production cars with the only “sample car” in the world, and cases of technological advancement to reduce costs have occurred from time to time. Some netizens said that taking the cost of the engineering prototype to calculate the cost of the production car is "ignorant nonsense, very unprofessional." The Hanergy official also said that the products currently released are only engineering prototypes. For the current media, the cost mentioned in the media is as high as “200,000 US dollars”, which is a very few people’s own predictions. In addition, Li Hejun stressed at the press conference that Hanergy wanted to build a solar car that the people bought.

So, how much can Hanergy Solar Car increase? According to the information provided by Hanergy, the cost of the 6-square-meter thin-film solar chip can be only one year's fueling fee. As the chip conversion rate increases, the cost of GaAs thin film solar chips will drop to about US$1/watt in the future. By then, each Hanergy solar car covers about 6 square meters of film, and the cost of thin film modules is only higher than that of ordinary electric motors. The car increased by 1,800 US dollars, about 11,800 yuan, which is only equivalent to the fuel cost of a normal fuel car for about one year.

If the plan is realized, solar cars have obvious advantages. Because the annual driving of 20,000 kilometers is solar charging, the cost of electricity and charging time is enough to offset the RMB 11,800.

Hanergy said that there are four ways to reduce the cost of thin film chips in the future: one is to increase the conversion rate, the other is localization, the third is the scale of chips, and the fourth is the whole vehicle manufacturing, the existing automobile cooperation, and the large scale of the aftermarket. Applications such as Hanergy Solar Motors are said to have a capacity of more than one million vehicles.

Hanergy said that with the development of technology, the decline in the cost of electric vehicles in the future is an inevitable trend. A month ago, BYD Chairman and President Wang Chuanfu revealed at the Tianjin Summer Davos Forum that in 2020, BYD is confident that the cost will be reduced by 30% through scale and technical means. In the same way, there should be no suspense in the significant decline of Hanergy solar modules. After the mass production of Hanergy solar vehicles, "the people can afford" should be expected.

4. When can I go public?

As soon as the Hanergy Solar Car was released, there were a lot of e-mail friends who consulted the price and time to market. The official answer from Hanergy is: two to three years or so. Hanergy said that Hanergy Solar Power Vehicle will focus on thin-film solar chips and realize open cooperation in the entire value chain. It is possible to produce or commission production. The open platform is supplemented by the Internet-made model, and mass production is not difficult. Hanergy said that with the current car-making technology, in the era of personalization, the use of the Internet may be faster to achieve mass production.

Five, what should I do?

The solar car is covered with a film that can generate electricity. What if the body is smashed or collided? Can you continue to generate electricity? Is the maintenance cost high? Is it easy to repair? In addition, battery attenuation is a major problem that plagues traditional electric vehicles. Will thin film solar energy also face this problem? How long will its warranty period be?

Gao Weimin explained that the advantages of thin-film solar energy are: high reliability and long life, only 20% attenuation in 25 years, far greater than the corresponding technical standards of other parts of vehicles. In addition, the GaAs solar chip is repairable, and damage to a certain part does not affect power generation at other locations. The GaAs solar chip's optimized electrical design allows the damaged part to be replaced and repairable while the rest is still working.

Six, looks good?

The solar-powered car was first born in 1982. In 1984, China developed a solar tricycle, but these models used a crystalline silicon power board, which is difficult to integrate with the car body. Therefore, the traditional solar car gives people a bad impression.

How about Hanergy Solar Car? Gao Weimin said that the flexible and bendable advantages of the thin film chip enable it to be better integrated with the vehicle body and achieve a beautiful design. For specific design, you can refer to the pictures and materials of the four prototypes released by Hanergy.

Xiaobian Comments:

Is the grand plan of Hanergy Solar Cars hype or innovative? Xiaobian can't make a judgment before he has a deep understanding of the full picture of the Hanergy Group. However, from the perspective of energy development trends, Li Hejun’s choice of road is not wrong. Solar energy is regarded as a sustainable, zero-pollution clean energy. Many countries and investors have already deployed in this field. Both Germany and Japan are developing photovoltaic business on a large scale. Musk also acquired solarcity to promote the adoption of vehicles. Continuous energy conversion.

A well-known expert in the field of sustainable development research in the United States, Woodrow, a senior consultant in the field of renewable energy, emerging technologies and finance. Clarke believes that "as the conversion efficiency of solar cells continues to increase, we will see a huge change in the performance of the car. It should be as soon as possible to let all-solar power cars drive on the road, because this is what consumers expect and pay attention to, people will Prepare for the arrival of a full solar powered car."

Undoubtedly, the prospect of solar energy as a source of energy is very broad, and the technical direction and market opportunities revealed by Hanergy Solar are equally expected. Of course, there are bound to be many difficulties in advancing the marketization of solar vehicles. But Ma Yun said that dreams always have to be, if it is realized? At present, Premier Li also called for "mass entrepreneurship, innovation." For entrepreneurs who have both ideas and practical things, Xiao Bian believes that public opinion does not have to be immediately denied, and can give them the opportunity to try and the environment for growth, so that they can prove themselves with strength.

The Maske launch rocket SPACE X failed three times before, and the money was lost. In 2008, Tesla was also on the verge of bankruptcy. However, the entrepreneurial culture in the United States is still very tolerant to entrepreneurs like Musk. This environment allowed Musk to reintegrate money again, carried out the fourth launch and succeeded, and finally revived the Rockets and Tesla. If the public opinion killed him before Musk’s fourth launch, perhaps we could not see Tesla today.

But Chinese entrepreneurs will face more pressure from public opinion and even more embarrassment. Li Shufu also made the car in the same year. At that time, Xiaobian just entered the automobile media industry. After listening to his speeches and interviews, he felt that he was very thoughtful and courageous, but many senior car reporters around him said that he was a madman. Said that the Geely car is rubbish. In order to strive for the qualification of building a car, Li Shufu once shouted to the relevant state departments "please give me a chance to jump off the building". But today, Geely cars are no longer the same.

For Hanergy, Xiaobian did not know enough. However, it is known from the news materials that Hanneng is the world's number one in the field of thin-film solar energy, and its core technology is 5-10 years ahead of Europe and the United States. As an energy strategic industry highly valued by the country, Xi Da, Li Premier, Wang Qishan, Yu Zhengsheng Leaders such as the National Leadership and Energy Bureau, the Ministry of Science and Technology, etc. have inspected Hanergy and expressed their affirmation of the core technologies mastered by Hanergy. Li Hejun also expressed his gratitude to the state and the competent authorities for their support during the difficult period of Hanergy. This shows that Hanergy has two brushes. Besides, Hanergy has invested tens of billions of dollars in research and development of thin-film solar chips before and after, so much money is invested in it. Is it just for the money?

Therefore, Xiao Bian believes that for entrepreneurs such as Li Hejun, Jia Yueting, Wang Chuanfu and Li Shufu who have dreams, passions and hard work, society can give them a little time and an opportunity. Li Hejun’s own pocket money to create a solar car that can be afforded by the future and can reduce smog. What is wrong with it?

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