Xiao Qiang noticed that this is a table listing the research results of solar cells by various countries.

Of course, these are mainly published. Some of them are information intercepted from the intelligence department on the Internet, because it is impossible to determine whether it is true. This part of the information is specially marked in blue.

"Monocrystal silicon solar cells are a traditional battery model. This is also one of the first research topics we have carried out. The best laboratory level in the world is now 28% effective conversion rate. Because our research in this area was carried out earlier, it has slightly improved, reaching an effective rotation rate of 28.5%..."

Xiao Qiang was not dissatisfied because of this data, which was only less than one-half higher than the world level.

He knew that the conversion rate of silicon crystal solar energy is not high itself, and its theoretical data cannot exceed 30%. Twenty-eight-five percent is already very close to the theoretical limit. This result is already quite high and is completely worthy of pride!

He was a little dazed and did not hear Ye Chao's explanation clearly.

However, the conversion efficiency of these single-crystalline silicon, polysilicon, and amorphous silicon solar energy is limited. Moreover, the cost of these planar solar panels is generally very high and does not have practical value, and is not the focus of its planning to use as energy development.

"...In order to prevent sunlight reflection and maximize the use of solar energy, we passivated the surface of the wafer..." Ye Chao did not check that the boss was not thinking about it, and he was still talking nonsense.

Xiao Qiang kept smiling, without any intention of urging him.

Although these achievements are not what he needs, they are all the results of researchers who have been working hard for more than ten years. Even if it is encouragement, he must use the most focused expression to express his sincere appreciation to these scientific and technological workers.

Scientists are not only self-admiration. They also desire glory and others' understanding.

Ye Chao occasionally raised his head and saw Xiao Qiang's expression with relish, and his emotions became even higher. He danced and explained every research project in a very detailed manner.

"... Concentrating solar cells are also one of the earliest research directions we have carried out, and the results are also very gratifying..." Ye Chao opened a demonstration document, which is a data model made through supercomputer calculations.

When Ye Chao and his friends usually study, they look at the relevant data directly. In order to give Xiao Qiang a more intuitive feeling, he turned on the animation demonstration effect.

Xiao Qiang suddenly cheered up and listened to his explanation with all his concentration.

"Concentrated monocrystalline silicon solar cell, this is this," the mouse pointed at a solar cell model.

This is a square cell panel with a condensing lens connected into an integral part, each lens has a diameter of 40 cm. Below is a layer of alloy film. At the focus of the lens, single crystal silicon wafers of several millimeters are embedded.

Below the alloy film, there is a large heat dissipation device.

"The focusing lenses we use are 100 times, 500 times and 100 times respectively. They are all special foreign lenses provided by the company. They have high clarity and outstanding focus performance. Now, this kind of concentrated solar cell has sixteen concentrated solar cells arranged on a three-square-meter lighting area. When the conversion rate is not greatly improved, the same light intensity can reach an output of 800 watts under ideal conditions. Compared with the current flat panel solar cell output of 150 watts per square meter, the lifting effect is not ideal. Moreover, due to the use of large cooling equipment, it cannot be used in ordinary households."

Xiao Qiang listened silently. At this time, he couldn't help asking: "Where are the multi-junction solar cells in the concentrated light?"

Ye Chao calmly switched to the next demonstration and said, "Mr. Xiao, this is a concentrated multi-junction solar cell. Because it uses multi-layer alloy and ion implantation technology, three solar energy conversion layers are piled up on the same thickness of 200 mm. They can absorb three different solar energy outputs, namely visible sunlight, invisible infrared light, and ultraviolet rays. The conversion efficiency reaches 39%, which is very

Break through forty percent of modern technology bottlenecks.

The same uses a thousand times focus and three square meters of array solar panels, and the power output can reach 4.2 kW. A solar power plant of one square kilometer can provide one million, five thousand kW/hour power supply. If there are 100,000 square kilometers, all of them will be used as solar energy to supply the country's electricity demand!"

He became more and more excited as he spoke. Finally, he stood up and pointed to the map on Xiao Qiang's office, excited.

"There are a large number of wastelands and deserts in the northwest my country, and these places can be fully developed as solar power plants. In the northwest region, there is sparse rainfall and sunshine time of up to 3,000 hours a year, with high intensity. It is an ideal place for solar power plants to build."

Xiao Qiang laughed: "100,000 square kilometers! Then let me ask, what is the price of these three square meters of concentrated multi-junction solar cells?"

Ye Chao was speechless, as if he was being climaxed and was forcibly stopped. He was stunned for a long time before sighing.

Nowadays, the price of ordinary flat-panel solar cells is 3,500 yuan per square meter.

The cost of this special concentrated solar cell is more than 100 times that of ordinary solar cell chips!

Although the battery chips used on a solar cell stack are not large, the total price is still no less than tens of thousands. In terms of power generation costs, it has been reduced, but in terms of overall investment, it has increased.

Based on this cost, it takes 2.5 billion yuan to build a solar power station of one square kilometer!

No matter how rich a company is, it cannot afford such high construction costs. It is impossible for the country to pay for such a large amount of expenses.

In other words, technically, the concentrated multi-junction solar cell has fully achieved practical capabilities. However, due to the difficulty of manufacturing, it can only be manufactured and popularized by a laboratory. It is still a long-lasting dream.

He sat down for a while before he raised his head and said in a firm tone: "We will do everything we can to make large-scale production a reality. As long as the cost can be reduced, I believe that solar energy will surely become one of our main sources of energy in the future!"

Xiao Qiang applauded gently: "Very good! We are conducting scientific research to serve human beings. We are looking forward to your research and achieving greater results!" He asked inadvertently, "If I had a condenser lens of 1,600 times, could you improve the current multi-junction concentrated solar cell?"

"One thousand six hundred times!" Ye Chao screamed in horror, "I heard that only one thousand six hundred times concentrating lenses are installed on American satellites! At the focus, the temperature reaches more than one thousand six hundred degrees! This is quite difficult!"

He frowned and thought about how to perform heat dissipation.

Qin Yunqiang smiled and reminded him: "Old Ye, don't be stubborn. Mr. Xiao means that he can get a 1,600-fold focus lens. Can you improve the existing multi-junction solar cells?"

Ye Chao's eyes lit up and he stuttered: "When...of course it can! We can all...perfect heat dissipation treatment of a thousand times, and there is no problem with one thousand...one thousand six hundred times! But Mr. Xiao, can you really get a lens of one thousand six hundred times?"

Xiao Qiang laughed: "You guys go back and prepare! Maybe in less than a month, the lens I ordered will be delivered. Whether it can be completed depends on your ability!"

"Absolutely no problem! I use personality guarantee!" Ye Chao was so happy that his eyes narrowed into a slit, immersed in the bright future of the 1,600-fold super-focused lens.

Xiao Qiang smiled faintly, looked down at the detailed description of the concentrated multi-junction solar lens, and thought to himself.

The heat dissipation system does not look very complicated and can be completed using an automatic production line. So, the main difficulty lies in the production of multi-junction solar panels.

The multi-junction solar panels are very small. He can reorganize a large number of assembled concentrated solar panels, which are enough for twenty square kilometers to be needed.

But after counting it, even if he used all to reorganize the solar panels in a year, he could only reorganize the solar panels needed for 7,300 square kilometers.

Converting to electricity supply, which is 7.3 billion kilowatts/hour, it takes three years to make up for the power gap in the southern region. To meet all the power supply in the southern region, it must take 30 years to reorganize all the solar panels.

Thinking of this, I overestimated my abilities at the beginning.

Such a little power supply should not attract the attention of other energy suppliers. For such a long time, the world's energy structure will probably undergo a major change. At that time, other energy suppliers may take the initiative to cooperate with themselves to build solar power plants.

The size of production capacity determines the degree of threat you will threaten other energy suppliers.

As long as you maintain this level of expansion and boil the frog in warm water, it should not cause a major rebound.

At best, he is just a technological pioneer!

Then, just do it!

Xiao Qiang thought for a long time, clenched his fists tightly, and made up his final decision.

He believes that in five years, at most ten years, Ye Chao and the others will definitely be able to solve the problem of manufacturing costs. By then, their own solar power station will become a climate. If it is promoted on a large scale, it will definitely be half the result with twice the effort!

Then let me take the lead and seize this commanding heights again!
Chapter completed!