G10 Solar Panel Back Sheet Price

With the rapid development of the photovoltaic industry, solar modules are facing increasingly higher requirements for electrical insulation performance, structural strength, and weather resistance. Thanks to its excellent electrical insulation properties and mechanical strength, G10 epoxy fiberglass laminate has been widely used in solar panel back sheets and structural support components. As a result, the price of G10 solar panel back sheets has become a key concern for photovoltaic module manufacturers and procurement professionals.

This article analyzes the market price of G10 solar panel back sheets from the perspectives of price composition, influencing factors, and purchasing recommendations.

What Is a G10 Solar Panel Back Sheet?

A G10 solar panel back sheet is typically manufactured from epoxy resin and fiberglass cloth through a high-temperature lamination process, offering the following characteristics:

Excellent electrical insulation performance

High mechanical strength and stable dimensional accuracy

Good moisture resistance, heat resistance, and aging resistance

Suitable for long-term outdoor operation of photovoltaic modules

In practical applications, G10 back sheets are commonly used as the rear insulation layer of solar modules, support plates, or insulation components for special structural designs.

G10 Solar Panel Back Sheet Price Reference

Currently, the market price of G10 solar panel back sheets is mainly influenced by product specifications and purchase volume. The general reference ranges are as follows:

Standard specification G10 back sheets: The price is usually around RMB 15–25 per square meter. The sheet has relatively stable pricing, and is suitable for the production of conventional photovoltaic modules.

Customized size or special thickness G10 back sheets: The price is generally around RMB 25–35 per square meter, slightly higher than standard specification products.

Bulk purchasing: Prices can be significantly reduced, helping buyers achieve better cost efficiency.

The final quotation should be comprehensively determined based on product thickness, dimensions, tolerance requirements, performance grade, and purchase quantity.

Main Factors Affecting the Price of G10 Solar Panel Back Sheets

1. Raw Material Cost

The grade of fiberglass cloth, as well as the brand and formulation of epoxy resin, directly affect the raw material cost.

Fluctuations in raw material market prices will also directly impact the cost of G10 back sheets.

2. Thickness and Size Specifications

The commonly used thickness range of G10 back sheets is 0.5 mm – 50 mm.

Non-standard sizes or oversized dimensions will increase processing costs.

3. Performance Grades and Standards

Whether the product is certified by IEC, UL, and other international standards, as well as specific requirements for electrical performance and weather resistance, will affect the price.

Higher performance requirements generally result in higher prices.

4. Processing Methods

Processing methods include standard cutting and CNC precision machining (such as drilling, slotting, etc.).

The complexity of processing has a direct impact on the final price.

5. Purchase Quantity and Delivery Cycle

Small-batch purchases usually have higher unit prices.

Establishing long-term bulk cooperation can help obtain more competitive pricing.

How to Optimize Procurement Costs? Purchasing Recommendations

1. Define Your Requirements Clearly

Select back sheet products with appropriate weather-resistance ratings based on the operating environment of the photovoltaic modules (such as desert, coastal, or extremely cold regions). This helps avoid unnecessary cost increases caused by over-specification.

2. Balance Brand Selection and Cost Performance

Some leading domestic manufacturers now offer products with performance comparable to international brands, providing buyers with more cost-effective options.

3. Focus on Product Reliability Data

During procurement, buyers should request third-party certification reports and proven application cases from suppliers, giving priority to products that have been validated through long-term use.

4. Consider Total Cost of Ownership (TCO)

Low-quality back sheets may lead to premature failure of photovoltaic modules and higher maintenance costs in the long run.

Procurement decisions should not be based solely on unit price, but on overall long-term reliability.

5. Lock in Pricing and Strengthen Supply Chain Cooperation

For long-term projects, buyers can negotiate flexible pricing agreements with suppliers to mitigate cost risks caused by fluctuations in raw material prices.

The price of G10 solar panel back sheets is influenced by technical level, market supply and demand, and the overall supply chain structure. Buyers should evaluate suppliers from a full life-cycle value perspective, selecting those with suitable technology and proven reliability. It is recommended to conduct sample testing before bidding and to communicate technical requirements with professional suppliers to obtain accurate quotations.

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