China's polysilicon: the black pot that can't be finished

**Abstract** The environmental impact of photovoltaic power generation has long been a topic of heated debate within the industry. The core of this controversy lies in the upstream material—polysilicon. While solar energy is often praised for being clean and emission-free, the production of polysilicon is seen as highly polluting and energy-intensive. This has led many to label the entire photovoltaic industry as environmentally harmful, with polysilicon at the center of the criticism. Critics argue that because polysilicon manufacturing involves significant energy consumption and pollution, the broader solar industry cannot be considered green or sustainable. However, this view overlooks the technological advancements made over the years. As production methods have improved, energy consumption and carbon emissions from polysilicon have significantly decreased. Despite these improvements, public perception remains largely unchanged, with many still associating solar power with high pollution. Recent studies, such as one conducted by a U.S. research team, claim that Chinese-made solar panels have a higher carbon footprint than those produced in Europe. According to the study, solar panels manufactured in China and installed in Europe have twice the carbon emissions compared to locally produced ones. The researchers attribute this to lower environmental standards in China, where energy production relies more on coal and less on renewables. While these findings may seem alarming, they are based on outdated data and fail to account for recent progress in Chinese polysilicon technology. In fact, energy consumption per kilogram of polysilicon has dropped significantly since 2009, from over 200 kWh/kg to around 130–150 kWh/kg. These improvements show that the industry is moving toward greater efficiency and sustainability. Despite this, the “two highs” (high pollution and high energy consumption) label persists, largely due to historical perceptions rather than current realities. Many foreign companies continue to rely on imported polysilicon, suggesting that the industry is not as harmful as some claim. Yet, the stigma remains, and the narrative continues to be shaped by biased or incomplete information. The issue also reflects deeper geopolitical tensions. The U.S. and other countries have launched multiple anti-dumping investigations against Chinese solar products, often using environmental concerns as a pretext. By highlighting the “carbon footprint” of Chinese polysilicon, these nations aim to justify trade barriers and protect their own industries. In reality, the challenges faced by the Chinese photovoltaic industry are not just technical but also political. While the sector has grown rapidly, it still faces external pressures that seek to undermine its global competitiveness. The key to overcoming these challenges lies in continued innovation, transparency, and a shift in public perception. Ultimately, the future of the photovoltaic industry depends on how well it can balance economic growth with environmental responsibility. With ongoing improvements in technology and policy, the industry has the potential to become a true leader in sustainable energy.

Smart Toilet

With the continuous development of science and technology, users' requirements for bathroom equipment experience are constantly improving, and smart toilets are becoming more and more popular. It incorporates cutting-edge technology to provide users with a more convenient and luxurious bathroom experience.

Auto-flush: Intelligent toilets are often equipped with sensors that automatically flush when you leave the seat. This hands-free operation adds convenience and helps maintain cleanliness and hygiene.

Seat heating: A cold toilet seat can be uncomfortable, especially during the colder months. Smart toilets usually have a built-in seat heating function, which can adjust the temperature according to preferences, providing a warm and comfortable seating experience.

Adjustable water temperature and pressure: Smart toilets can often set the water temperature and pressure for bidet cleaning to suit your comfort and personal preferences.

Bidet Cleaning: Bidet toilets often include a bidet feature that sprays water for personal cleansing after using the toilet. This feature eliminates the need for toilet paper and provides a more hygienic and refreshing cleaning experience.

Odor-removing features: Some smart toilets come with built-in deodorizers that help eliminate unpleasant odors. These deodorizers typically use carbon filters or other technologies to neutralize and remove odors from the toilet area.

Additional features: Depending on the model, smart toilets may have additional features such as air dryers, night lights, self-cleaning features, touchless controls, built-in music speakers, Bluetooth connectivity, and even integrated health monitoring.

Stylish design: Smart toilets are designed with an eye toward aesthetics, often featuring sleek, modern designs that complement a variety of bathroom styles. The clean lines and streamlined appearance create an overall sense of modernity and luxury.

Smart toilets offer a range of benefits including enhanced hygiene, convenience and increased comfort. While they tend to be more expensive than traditional toilets, many people find the advanced features and improved user experience well worth the investment.

Smart Toilet, Automatic Toilet, Intelligent Toilet, Electronic Toilet, Bidet Toilet

Guangdong Fabia Intelligent Technology Co., Ltd , https://www.smartfabiatoilet.com