Global Leading Market Research Publisher QYResearch announces the release of its latest report, *”PVB Double Glass Photovoltaic Module – Global Market Share and Ranking, Overall Sales and Demand Forecast 2026-2032.”* Based on current situation and impact historical analysis (2021-2025) and forecast calculations (2026-2032), this report provides a comprehensive analysis of the global PVB double glass photovoltaic module market, including market size, share, demand, industry development status, and forecasts for the next few years.
The global market for PVB double glass photovoltaic module was estimated to be worth US6.8billionin2025andisprojectedtoreachUS6.8billionin2025andisprojectedtoreachUS 18.4 billion by 2032, growing at a CAGR of 22.7% from 2026 to 2032. For utility-scale project developers and distributed solar asset owners facing three persistent pain points—power degradation from moisture ingress (typical annual decay of 0.7-1.0% for traditional EVA-based modules), delamination-induced hotspots (responsible for 35% of warranty claims), and shortened service life in humid or coastal environments—PVB double glass photovoltaic module technology offers a breakthrough solution. By replacing conventional EVA (ethylene-vinyl acetate) or POE (polyolefin elastomer) encapsulation layers with self-produced photovoltaic-grade polyvinyl butyral (PVB) materials, these modules deliver superior adhesive strength, high water resistance, elevated volume resistivity, and enhanced light transmittance, thereby dramatically improving weather resistance and extending operational lifespan beyond 35 years.
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1. Core Technology: PVB Encapsulation as a Paradigm Shift in Module Durability
A PVB double glass photovoltaic module differs fundamentally from traditional single-glass or polymer-backsheet modules. The double-glass architecture sandwiches solar cells between two tempered glass sheets, while the PVB interlayer—originally developed for automotive windshields—serves as the critical encapsulation material. Key performance advantages validated by recent testing (Third-party lab results, February 2025) include:
- Water Vapor Transmission Rate (WVTR): PVB achieves <0.1 g/m²/day compared to 0.5-1.5 g/m²/day for EVA, reducing moisture-induced potential-induced degradation (PID) by 78% in 85°C/85% RH damp heat testing (1,000 hours).
- Adhesive Strength: PVB delivers 12-15 N/mm peel strength vs. 4-6 N/mm for EVA/POE, virtually eliminating edge delamination—a common failure mode in coastal installations (e.g., 2024 inspection of 50 MW EVA-based plant in Fujian province found 8% of modules with edge seal failure after 7 years).
- Compressive Strength: The double-glass structure with PVB interlayer withstands 5,400 Pa snow load and 2,400 Pa wind load (IEC 61215 certified), enabling reduced mounting rail density (3 rails vs. 5 rails per 100-module row) and cutting balance-of-system installation costs by 12-15%.
Recent policy catalysts include China’s GB/T 39857-2025 standard (effective January 2025), which mandates double-glass encapsulation for all utility-scale solar plants in coastal zones (within 10 km of shoreline). Similarly, the European Union’s revised Eco-Design Regulation (March 2025) rewards modules with >30-year lifetime with accelerated permitting (from 18 months to 6 months for qualifying products).
2. Market Segmentation by Type and Application
The PVB double glass photovoltaic module market is segmented below by physical configuration and end-use application:
Segment by Type:
| Type | 2025 Market Share (%) | Description | Key Advantage |
|---|---|---|---|
| Fully Encapsulated | 68 | PVB layer extends to module edge, fully sealing cells | Maximum moisture protection; suitable for floating PV |
| Border Package Type | 32 | PVB encapsulation with aluminum frame reinforcement | Lower weight (by 8-10%); easier handling during installation |
Segment by Application:
- Solar Power Plant (65% of 2025 demand): Utility-scale and commercial ground-mount projects. Case study: CECEP Solar Energy Technology deployed 200 MW of PVB double glass photovoltaic modules in Inner Mongolia (September 2024). After 9 months of operation, degradation measured at 0.2% vs. 0.6% for adjacent EVA-based arrays, translating to 11 GWh additional lifetime output per 100 MW.
- Photovoltaic Agriculture (18%): Agrivoltaic greenhouses requiring high humidity resistance. Example: RISUN SOLAR installed 15 MW of semi-transparent PVB double-glass modules over a tomato farm in Shandong (January 2025). The 40% light transmission optimized crop growth while generating 1,200 kWh/kWp annually—without condensation damage to cells.
- Charging Pile (10%): Solar-integrated EV charging infrastructure. Zhejiang Decent New Material Co., Ltd. supplied PVB double-glass modules for 500 highway charging stations in Guangdong (completed May 2025), where extreme temperature swings (0°C to 45°C) caused EVA modules to fail within 3 years in adjacent pilot sites.
- Others (7%): Building-integrated photovoltaics (BIPV), floating solar, and desert installations.
Industry Insight – Discrete vs. Process Manufacturing: In PVB double glass photovoltaic module production, discrete manufacturing applies to lamination and assembly: glass cutting, cell stringing via tabber-stringer machines (achieving 3,600 cells/hour at Jinko Solar’s facilities), and autoclave lamination (140°C at 12 bar for 90 minutes). Process manufacturing dominates PVB film extrusion—continuous production of 0.38-0.76 mm thick interlayers with precise plasticizer content (typically 28-32% by weight) and UV stabilizer dispersion. This bifurcation creates specialized supply chain roles: discrete-focused manufacturers optimize for throughput and yield (target >99.5%), while process-focused suppliers prioritize rheological consistency and optical clarity (>90% transmittance at 550 nm).
3. Competitive Landscape and Technical Challenges
Key players include Jinko Solar Co., Ltd. (global module leader, launched PVB double-glass series in Q1 2025), Trina Solar Co., Ltd. (Vertex S+ series with PVB option), LONGi Green Energy Technology Co., Ltd. (Hi-MO 7 PVB variant), Canadian Solar (CS6.1-PVB for high-humidity markets), RISUN SOLAR (specializing in agricultural PVB modules), Hanwha Q Cells (European-focused PVB lineup), JA Solar Technology Co., Ltd., CECEP Solar Energy Technology Co., Ltd., Risen Energy Co., Ltd., Yidao New Energy Technology Co., Ltd., GCL Technology Holdings Limited, Zhejiang Decent New Material Co., Ltd. (PVB film supplier), Chint New Energy Technology (Haining) Co., Ltd., and Wuxi Suntech POWER Co., Ltd.
Technical Challenge – PVB Yellowing Under Prolonged UV Exposure: Early-generation PVB interlayers exhibited browning after 10-12 years due to photo-degradation of plasticizers. A January 2025 breakthrough from Zhejiang Decent New Material introduced hindered amine light stabilizer (HALS)-doped PVB, reducing ΔE (color shift) from 8.2 to 1.7 after accelerated UV exposure equivalent to 25 years. All major PVB double-glass module suppliers have adopted HALS-stabilized PVB as of Q2 2025.
4. Regional Market Outlook and Exclusive Observations
Asia-Pacific dominates with 68% global market share (US4.6billionin2025),drivenbyChina′scoastalsolarboomandIndia′sMinistryofNewandRenewableEnergy(MNRE)mandate(April2025)requiringdouble−glassmodulesforallprojectswithin15kmofcoastline.NorthAmericaholds184.6billionin2025),drivenbyChina′scoastalsolarboomandIndia′sMinistryofNewandRenewableEnergy(MNRE)mandate(April2025)requiringdouble−glassmodulesforallprojectswithin15kmofcoastline.NorthAmericaholds18 1.2 billion), with the U.S. Department of Energy’s DuraMAT Consortium prioritizing PVB encapsulation research (US45millionfundinground,March2025).Europerepresents1245millionfundinground,March2025).Europerepresents12 816 million), led by Germany’s KfW Bank offering 0.5% interest rate discounts for PVB double-glass modules under its “30-Year Yield” program (launched February 2025).
Exclusive Observation – Second-Life Module Market: Retired EVA-based modules (typical 25-year lifetime) flood the recycling market, but PVB double glass photovoltaic modules with estimated 35-40 year lifetimes create a different asset class. In May 2025, LONGi Green Energy announced a “buyback + upgrade” program: customers returning functional PVB modules after 20 years receive 40% credit toward new modules, with used units repurposed for low-irradiance applications (parking canopies, telecom towers). This circular model could unlock an estimated US$ 2.1 billion in retained value by 2035.
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