Great Wall of China Reservoir(6)

6

　　Ecological management in the central and western regions is a systematic project. For Yan Zheng, the large-scale cultivation and planting of the Suosuo forest is only one of the means, and the bigger plan is yet to come.

　　On the winter solstice of 2085, at a technical conference held at Yizhuang University in Beijing, solemnly suppressed the mood to announce a new technological progress: "If human beings do not over-exploit and generate electricity, it will not exacerbate problems such as air pollution and land desertification, and the root cause of various ecological problems is the over-dependence and mining of existing energy sources." If our energy dependence shifts paths, the situation will naturally change, and many problems will be solved. This truth must be understood by everyone. ”

　　Looking at the expectant eyes of the audience, Yan Zheng paused, and continued: "Regarding changing energy dependence, at this stage, solar energy is inexhaustible. At least, from the perspective of modern earthlings. ”

　　At this moment, Yan Zheng is already a well-known scientist and ecologist at home and abroad.

　　Asking for energy from the sun, asking for a way out, this seems to be an outdated scientific issue. As early as the 80s of the last century, China established the Solar Energy Society to promote the research and application of photovoltaic technology. In the twenties and thirties of this century, China's photovoltaic industry was exported to all parts of the world, and it has been on a large scale. However, traditional photovoltaic modules occupy a large area and have low conversion efficiency, and this kind of product with very low energy density also has disadvantages such as high energy consumption and high pollution when generated. Therefore, in recent decades, even if there have been occasional technological breakthroughs, they have not fundamentally solved the problem of traditional energy dependence.

　　Looking at the expectations and puzzles of the audience, Yan Zheng quickly cut to the topic: "Forget about photovoltaic panels." He then picked up a thin glass-like object on the table and continued, "Try the power generation glass. ”

　　Power generation glass? What is this? There were suspicious eyes in several corners of the scene, and these eyes looked left and right, trying to find people who were also suspicious. But almost at the same time, it was overshadowed by more youthful cheers and applause. Power generation glass was a materials science idea half a century ago, and the technical demonstration of it seems to have made little progress over the years. While the older generation gave up on the quest, the newborn young people were obsessed with it, not knowing how difficult it would be to break through this technology.

　　But does it matter? For their generation, sometimes giving "hope" is more important than "realization" itself.

　　The promotional screen began to play on the big screen, and the solemn explanation began to be synchronized. "Yes, you heard it right, it's the power generation glass. ”

　　Strictly try to abandon the complex principles and terms of materials science and engineering, but it still took nearly 30 minutes to explain the basic principles and application scenarios of power generation glass.

　　Everyone finally understands that the secret of power generation glass lies in the almost invisible layer of thin-film solar cells inside it. The core composition of the battery is a new material called chromium telluride, which is a crystalline material synthesized from two elements, chromium and tellurium, which has extremely high photoelectric conversion efficiency. Whenever sunlight hits these glasses, the electrons inside the chromium telluride film are activated, creating an electric current. This current is converted into usable electrical energy through a built-in microconverter.

　　Unlike traditional solar panels, power generation glass does not require a complex tracking and concentrating system. It can absorb sunlight at any angle, whether in direct or diffused light, and maintain an efficient power generation capacity. This allows any piece of land, any mountain range, or even any building in the Midwest to theoretically become a small power plant.

　　Of course, the yield rate of the product is not very high, and efforts are being made to improve it. I solemnly tell you that this material involves more than a dozen disciplines such as materials science, metallurgy, physics, electrical engineering and electrical engineering, and requires the participation of the whole society.

　　"What about energy storage?" In the audience, someone raised a question that worries everyone.

　　Obviously, the Serious team had anticipated this problem for a long time. Yan Zheng took a sip of water and explained a brain-opening design to everyone in the audience.

　　For the time being, traditional solutions are still used for energy storage, but a team at Beijing Aeronautical University, which Yan Zheng and they work with, is exploring the advanced technology of "superconducting magnetic energy storage system" and has made positive progress. At the heart of a superconducting magnetic energy storage system is a special superconducting material that has zero resistance at room temperature. When an electric current is passed through this superconducting material, there is no loss of energy, so electrical energy can be stored efficiently for a long time.

　　When the system is turned on, the excess electrical energy is converted into a powerful magnetic field energy and stored in a superconducting coil. When electricity is needed, the system converts the magnetic field energy back into electrical energy, which is supplied to the grid or directly to the power equipment. To put it simply, it can be used as a "power bank" for the power grid, providing a stable power supply for the city at night or on rainy days

　　In the power transmission sector, this superconducting technology is also expected to be used.

　　Traditional transmission methods, even ultra-high voltage transmission, have problems with energy loss and transmission distance limitations. The "superconducting transmission technology" can realize the efficient and long-distance transmission of electric energy.

　　In the solemn scenario, with the spread of this technology, China's energy structure will undergo earth-shaking changes, and the efficacy of coal as a power generation will almost become a thing of the past. In the future, human beings can use renewable energy such as solar energy more efficiently to achieve sustainable use of energy and environmental protection.

　　"In the future, people may no longer feel the heaviness and dirt of fossil fuels. Instead, fresh air and bright sunshine. Power generation glass, superconducting energy storage, and transportation capacity will not only change the energy structure, but also change people's lifestyles. The solemn voice fell, and there was warm applause.

　　"And all this will take several generations!" Yan Zheng raised his hand to suppress the applause, and continued to be right.

　　End

　　Autumn 2124.

　　Wow, whoa, whoop......

　　On a "sparkling" super reservoir, patches of seemingly transparent glass rotate with the turn of the sun.

　　"My teacher's old man was involved in the construction of the Great Wall of Reservoir in his childhood, and later everyone thought that the great plan had failed. Now, we tell the world that the Great Wall of China's reservoirs has become a great wall!" In a command center in Xi'an, a solemn voice opened his speech.

　　Almost at the same time, in Lanzhou, in Yulin, in Yumen, in Urumqi...... The 23 super reservoirs that had been dormant for many years woke up.

　　These 23 super reservoirs, oh no, are 23 super power stations starting at the same time. The surface of these super reservoirs was all covered with power generation glass, and they were transformed into super power stations. The superconducting materials that have been available 10 years ago have been applied to become super energy storage stations. The connecting routes between these 23 reservoirs are now integrated into the national quantum superconducting transmission network.

　　According to the AI system, the power generation capacity of each super reservoir power station exceeds the power generation capacity of the 10 Three Gorges Reservoirs, which can not only transmit inexhaustible electricity to China and countries along the Belt and Road, but also carry out ground-to-air power transmission in the future to provide energy for the space base.

　　The Great Wall of China's Reservoir 2.0 is officially launched!