Development of photovoltaic power generation in China

Solar energy is one of the most promising renewable resources in China, with vast potential for development. The country's theoretical solar energy reserves amount to 1.7 billion tons of standard coal annually, making it a key player in global solar energy initiatives. Spanning over 5,000 kilometers from north to south and east to west, China boasts an extensive area with abundant sunlight. In most regions, the annual average daily solar radiation exceeds 4 kWh per square meter, while in Tibet, it can reach up to 7 kWh per square meter. With more than 2,000 hours of annual sunshine, China's solar potential is comparable to that of the United States and far superior to Europe and Japan. The journey of solar technology in China began in 1958, when the first practical solar cell was developed in 1959. By the 1970s, photovoltaic power generation started gaining traction, initially used for space applications like the second Chinese satellite in 1971. Ground-based solar systems were introduced in 1973, and by 1979, monocrystalline silicon solar cells entered mass production. From the mid-1990s onward, the industry saw steady growth, with continuous improvements in output and efficiency. By the early 2000s, the sector entered a phase of rapid expansion. China's photovoltaic industry has experienced two major milestones. The first occurred in the late 1980s, during a period of economic reform and opening-up, when several solar cell production lines were introduced, significantly boosting production capacity. The second wave came after 2000, driven by international projects and government policies. Initiatives such as the "Guangming Project" and the "Power Transmission to Townships" project played a crucial role in promoting solar energy adoption across rural areas. By 2007, China had installed over 100 MW of photovoltaic capacity, with more than 50 companies producing solar cells. Annual production reached 1,188 MW, surpassing Japan and Europe. The industry had also established a complete supply chain, including raw material production and system construction. Breakthroughs in polysilicon production helped overcome previous bottlenecks, paving the way for large-scale solar energy development. In 2009, a major milestone was achieved when a joint venture won the first grid-connected photovoltaic project in Dunhuang, Gansu, at a competitive rate of 1.09 yuan per kWh. This event marked a turning point, providing a benchmark for future projects and laying the groundwork for national subsidies and broader adoption of solar energy. Despite its rapid growth, the industry still faced challenges such as overinvestment and limited innovation, highlighting the need for sustainable development strategies.

Steel Structure Building

The price of steel structure building is favorable, and the safety is guaranteed!
In recent years, steel structure buildings are still very popular, and can be divided into Industrial Steel Buildings and Agricultural Steel Buildings. Industry is mostly used for Steel Structure Workshop Warehouse, and agriculture is mostly used for cowsheds and stables.

Moreover, the construction efficiency of this type of building is high, and different designs can also be carried out, so as long as it can cooperate with regular manufacturers, customized processing buildings are also guaranteed. And from the price point of view, its cost performance is high, and the safety is also guaranteed.

sturdiness
Many people may worry that steel structure buildings are not as strong as traditional buildings, but this is not the case. Because it is made of heavy-duty steel, it has a strong load-bearing capacity and its stability is also guaranteed. It can withstand typhoons, earthquakes, etc., and its steel properties are unique, so it is also guaranteed to be used in harsh environments.

fire effect
Because steel itself is a non-combustible material, and the outer layer has fire-resistant coating and anti-rust coating, and many buildings directly use sandwich panels, so its fire-proof, moisture-proof, and sound-proof effects are also good. of.

waterproof and insect-proof
Steel structure buildings can be effectively waterproof, and the surface of the steel is also galvanized, so the corrosion resistance is also guaranteed. And it also has a good insect-proof effect, so you don't have to worry about being eaten by insects later.

long-term use
Such buildings can be used for a long time, but it is also important to choose light decoration for the interior as much as possible to reduce the overall load bearing of the building. Moreover, the hardness of steel is strong, and it is not easy to deform. It has a long service life and is also good in terms of cost performance.

Environmental performance
In fact, all materials of the steel structure can be recycled and reused, which can reduce the waste of energy and also avoid the generation of construction waste. Therefore, relatively speaking, this kind of building has strong environmental protection performance, and this kind of building will be chosen on many construction sites.

And now many manufacturers can also provide customized processing services, so that it is convenient to customize steel structure buildings, and fast construction can be completed in a short period of time, so that construction costs can also be saved a lot. Therefore, from the perspective of long-term use and cost performance, such buildings are indeed worth choosing.

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Henan Jinming Metal Material Co., Ltd. , https://www.jinminghouse.com