Product Manufacturing Process

The manufacturing process for high-efficiency solar panels like the ASTRO N7s series involves several complex steps to ensure top-notch quality and performance. Initially, high-purity silicon is processed to create solar cells using n-type TOPCon 4.0 technology. The cells undergo various treatments to enhance efficiency, such as passivation and anti-reflective coatings. They are then interconnected using Zero-busbar integrated interconnection, also called ZBB-TF (Tiling Film). The cells are encapsulated with tempered glass and a durable backsheet, followed by framing with black anodized aluminum for an aesthetically pleasing look. This meticulous process ensures high module efficiency, low degradation, and long-term durability.

Product Application Scenarios

The ASTRO N7s series is designed for various rooftop scenarios, including residential, commercial, and balcony applications. In residential settings, the panels can power household appliances, reduce electricity bills, and contribute to a sustainable lifestyle. For commercial buildings, the high efficiency and sleek design make them ideal for maximizing energy production while maintaining the aesthetic appeal of the property. Balcony installations benefit from easy transport and installation, allowing for urban solar energy solutions. The versatility of these panels makes them suitable for different climates and conditions, ensuring reliable energy production across various applications.

Product After-Sales Service

PVSTAR offers comprehensive after-sales services to ensure customers' satisfaction and the long-term performance of their solar panels. Our service includes system monitoring, maintenance, and prompt troubleshooting. Customers can contact our dedicated support team for any issues, ensuring their photovoltaic systems operate efficiently. We provide a 25-year warranty covering both product and performance, giving our customers peace of mind. Our 'worry-free service' philosophy means we are committed to delivering exceptional after-sales support for all our products.

Product Transportation

PVSTAR ensures the safe transportation of the ASTRO N7s series solar panels through robust packaging and reliable logistics. Each packing unit contains 36 panels, with the total weight per 40'HQ container being 820 kg, housing 936 panels. The packaging is designed to protect the panels from damage during shipping, utilizing durable materials and secure fastening mechanisms. Our logistics partners are experienced in handling high-value shipments, ensuring timely and safe delivery to customers across the globe.

Product Advantages

• High Efficiency: up to 23.0% with n-type TOPCon 4.0 technology.
• Durable Design: aluminum frame and tempered glass for long-term reliability.
• Sleek Appearance: all-black technology blends seamlessly into rooftops.
• Comprehensive Warranty: 25-year product and performance warranty.
• Wide Application: suitable for residential, commercial, and balcony rooftops.

Product FAQ

1. What makes ASTRO N7s series the best household solar panels in China?

ASTRO N7s series is renowned for its high efficiency, durability, and sleek design, tailored to meet various rooftop application needs in China.

2. How efficient are these panels?

They offer an efficiency rate of up to 23.0%, making them some of the best household solar panels available in China.

3. What kind of warranty do you offer?

We provide a 25-year comprehensive warranty on both product and performance.

4. What is the degradation rate of these panels?

The first-year power degradation is ≤ 1.0%, and from year 2 to 30, the annual degradation is ≤ 0.4%.

5. Can these panels withstand harsh weather conditions?

Yes, they are built to withstand up to 5400 Pa on the front and 2400 Pa on the back, ensuring durability in various climates.

6. What is the weight of each module?

Each module weighs approximately 21.5 kg.

7. How many cells are there in each panel?

Each panel consists of 108 n-type mono-crystalline cells.

8. What type of frame material is used?

The frame is made from black anodized aluminum for enhanced durability and aesthetics.

9. What are the dimensions of these panels?

The panels measure 1762 x 1134 x 30 mm, making them compact and easy to install.

10. How are the panels packaged for transportation?

Each box contains 36 panels, and a 40' HQ container can hold up to 936 panels, ensuring safe and efficient transportation.

Product Hot Topics

1. What sets China's best household solar panels apart?

China's best household solar panels, like the ASTRO N7s series, stand out due to their advanced n-type TOPCon 4.0 technology, high efficiency of up to 23.0%, and robust construction. These panels are designed to endure harsh weather conditions while maintaining optimal performance. Their sleek, all-black appearance adds aesthetic value to residential and commercial rooftops. The comprehensive 25-year product and performance warranty further underscores their reliability and value, making them a top choice for homeowners seeking sustainable and efficient energy solutions.

2. How do the ASTRO N7s series optimize energy production in China?

The ASTRO N7s series panels are specifically engineered to maximize energy production in various climatic conditions prevalent in China. The high-efficiency rate of up to 23.0%, coupled with low degradation rates, ensures sustained energy output over the system's lifetime. The Zero-busbar integrated interconnection reduces energy loss, while the n-type mono-crystalline cells enhance performance. This makes the panels ideal for both residential and commercial setups, providing a reliable and cost-effective renewable energy solution designed to meet China's growing energy needs.

3. Why is a 25-year warranty crucial for solar panels?

A 25-year warranty is a significant assurance of the panel's long-term reliability and performance. It reflects the manufacturer's confidence in the product's durability and build quality. For China's best household solar panels, like the ASTRO N7s series, this warranty covers both product defects and performance degradation, ensuring that the panels will continue to generate substantial energy output. This long-term protection makes the investment in solar technology worthwhile by offering peace of mind and financial stability to the property owner.

4. What are the key factors to consider when choosing household solar panels in China?

When selecting the best household solar panels in China, key factors include efficiency, durability, cost, warranty, and aesthetic appeal. High-efficiency panels like the ASTRO N7s series maximize energy production, which is crucial for homes with limited roof space. Durability ensures long-term performance, with robust materials like anodized aluminum frames and tempered glass. The cost should align with budget considerations while providing good value. A comprehensive warranty offers peace of mind, and sleek designs enhance the property's visual appeal, ensuring the best return on investment.

5. How does the ASTRO N7s series blend aesthetics with functionality?

The ASTRO N7s series from China offers a perfect blend of aesthetics and functionality, making them the best household solar panels for modern applications. The all-black technology provides a sleek, uniform appearance that seamlessly integrates with various roof types, enhancing the property's visual appeal. Despite their elegant look, these panels do not compromise on functionality. They utilize advanced n-type TOPCon 4.0 technology to achieve high efficiency and durability, ensuring long-term energy production. This combination of form and function makes them a favored choice among homeowners and commercial property owners alike.

6. What makes n-type TOPCon 4.0 technology superior?

n-type TOPCon 4.0 technology, used in China's best household solar panels like the ASTRO N7s series, offers superior performance due to its advanced cell structure. This technology leverages passivating contacts, which reduce recombination losses and enhance efficiency. The result is higher energy output and better low-light performance compared to traditional p-type cells. Additionally, n-type cells exhibit lower Light-Induced Degradation (LID) and better Temperature Coefficient (TC), making them more reliable and efficient over the panel's lifespan. This technological edge makes TOPCon 4.0 an ideal choice for high-performance solar installations.

7. How do the ASTRO N7s panels perform in various weather conditions?

The ASTRO N7s series panels are designed to perform optimally in diverse weather conditions found across China. Their robust construction, including a durable aluminum frame and tempered glass, enables them to withstand heavy snow loads and high winds. The panels are tested to endure up to 5400 Pa on the front and 2400 Pa on the back, ensuring reliability in extreme conditions. Additionally, the technology used in these panels provides excellent performance in both high temperatures and low-light environments, making them versatile and reliable for year-round energy production in various climates.

8. Why is low power degradation important for solar panels?

Low power degradation is crucial for maximizing the long-term energy output of solar panels. In the case of China's best household solar panels like the ASTRO N7s series, the first-year power degradation is limited to ≤ 1.0%, and subsequent annual degradation is ≤ 0.4%. This ensures that the panels maintain a high level of performance throughout their 25-year lifespan, providing consistent and reliable energy production. Lower degradation rates translate to better return on investment, lower maintenance costs, and sustained energy savings over the lifetime of the solar installation.

9. How do comprehensive warranties benefit solar panel owners?

A comprehensive warranty, like the 25-year product and performance warranty offered with the ASTRO N7s series, provides significant benefits to solar panel owners in China. This warranty ensures that any defects or performance issues will be addressed promptly, minimizing downtime and ensuring continuous energy production. It reflects the manufacturer's confidence in their product's durability and quality. For homeowners and businesses, this means peace of mind, financial protection, and assurance that their investment in solar technology will deliver sustained benefits over the long term, making these panels a smart and secure choice.

10. How does the ASTRO N7s series support China's renewable energy goals?

The ASTRO N7s series supports China's renewable energy goals by providing high-efficiency, durable solar panels that contribute to reducing carbon emissions and promoting sustainable energy use. With an efficiency rate of up to 23.0% and low degradation rates, these panels ensure maximum energy output, helping to meet the growing demand for clean energy. Their versatile application in residential, commercial, and balcony installations makes them accessible to a wide range of users. By enabling more households and businesses to adopt solar energy, the ASTRO N7s series plays a crucial role in accelerating China's transition to a low-carbon economy.

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