BIPV roofing solutions

L Luke Product Manager, GreenMore · Photovoltaic building materials As global demand for Building-Integrated Photovoltaics (BIPV) continues to rise, more homeowners, architects, and developers are choosing solar roofing tiles to combine clean energy generation with architectural aesthetics. GreenMore, a professional photovoltaic tile manufacturer, offers two advanced types of three-curve solar tiles designed for different roof structures and performance requirements: CIGS Thin-Film Three-Curve Solar Tiles BC (Back Contact) Three-Curve Solar Tiles The image below shows GreenMore's two solar tile technologies side by side, highlighting their structural differences and design characteristics. This article explains each technology and helps customers choose the best solution for their project. Comparison of GreenMore solar tile BC, thin film, and TOPCon battery technologies 1. Thin-Film Three-Curve Solar Tiles: Lightweight, Flexible, and Highly Aesthetic Key Features Ultra-uniform dark appearance — no visible cell grid lines Lightweight and flexible structure (~6.5 kg per tile, 720 × 500 mm) CIGS thin-film technology: ~100–105 W/㎡ power density Excellent weak-light performance — maintains output on cloudy or overcast days Flexible substrate allows natural conformity to curved roof profiles GreenMore's thin-film three-curve solar tiles use advanced CIGS technology. Their flexibility allows the tiles to naturally follow the three-curve roofing shape, making them ideal for villas, cultural buildings, and projects where aesthetic consistency is essential. Best Applications Lightweight roof structures Renovation projects where weight is a constraint Curved or artistic roof designs Regions with frequent cloudy or low-light conditions 2. BC Three-Curve Solar Tiles: High Efficiency with a Clean, Modern Look Key Features Back-contact cell design with no front busbars — clean, uninterrupted surface High conversion efficiency — up to 24.1% module efficiency Premium deep-black appearance with no visible grid lines Strong mechanical strength (5400 Pa load bearing) Higher power density per tile (37–50 W per tile) — maximizes roof power output BC (Back Contact) technology places all electrical contacts on the back of the cell, eliminating visible grid lines. This gives GreenMore's BC solar tiles a clean, modern, and high-end appearance, while delivering strong energy output. GreenMore's BC line was introduced in 2025 and represents the latest advancement in our three-curve tile portfolio. Best Applications High-end residential roofs Commercial BIPV projects requiring premium aesthetics New buildings with strong roof structures Projects prioritizing maximum power generation per square meter 3. Technology Comparison: Thin-Film vs. BC Feature CIGS Thin-Film Tiles BC Three-Curve Tiles Cell Technology CIGS thin-film Back-contact crystalline Module Efficiency ~100–105 W/㎡ Up to 24.1% Power per Tile 32–34 W 37 / 42 / 50 W Appearance Ultra-uniform dark Premium, no grid lines Weight ~6.5 kg (720×500mm) ~6.5 kg (720×500mm) Flexibility Excellent — conforms to curves Rigid — flat or gentle curves only Weak-light Performance Excellent Good High-temperature Performance Very good Excellent Load Bearing 5400 Pa 5400 Pa Ideal Application Curved roofs, lightweight structures, renovation High-end homes, commercial, maximum power density 4. Why Choose GreenMore Three-Curve Solar Tiles As a photovoltaic tile manufacturer, GreenMore provides the complete BIPV solution — not just the tiles, but the full system integration: Self-produced core products: Three-curve solar tiles, photovoltaic bricks, and photovoltaic curtain walls are manufactured in-house, available in both CIGS thin-film and BC back-contact technologies. Supporting system components: Inverters, mounting systems, and energy storage systems are sourced as part of the complete BIPV roof system offering. Engineering support: Technical guidance for residential, commercial, and industrial projects — from roof assessment to system commissioning. Quality assurance: 25-year linear power warranty on all solar tiles. Customizable solutions: Adaptable to different roof types, architectural styles, and regional requirements. 5. Frequently Asked Questions What is a three-curve solar tile and why is it used in BIPV roofing? A three-curve solar tile is a photovoltaic module designed to match the curved profile of traditional roofing tiles. Its structure improves waterproofing, wind resistance, and architectural integration. GreenMore's three-curve tiles combine solar power generation with roofing functionality, making them a true BIPV solution. What is the main difference between CIGS thin-film and BC three-curve solar tiles? CIGS thin-film tiles are lightweight, flexible, and excel in weak-light conditions — ideal for curved roofs and renovation projects. BC tiles offer higher efficiency (up to 24.1%), a premium deep-black appearance, and stronger power density — best for high-end residential and commercial roofs where maximum energy output matters. Which type provides the highest power generation? GreenMore's BC three-curve solar tiles deliver the highest power output per tile (up to 50 W) thanks to back-contact cell technology and high module efficiency. CIGS thin-film tiles prioritize aesthetics and flexibility over peak power output. Are three-curve solar tiles suitable for curved or complex roof structures? Yes — especially CIGS thin-film tiles, which are flexible enough to conform to curved roof profiles. BC tiles are rigid crystalline modules and are best used on standard curved roofs with stable structural support. How do the two types perform in weak-light or cloudy conditions? CIGS thin-film tiles have the best weak-light performance due to their thin-film characteristics, maintaining relatively stable output even on overcast days. BC tiles also perform well in diffused light conditions, though their advantage is more pronounced in direct sunlight. What is the warranty and expected lifespan of GreenMore's three-curve solar tiles? All GreenMore three-curve solar tiles carry a 25-year linear power warranty. The laminated tempered glass construction is engineered for long-term durability and weather resistance. Can three-curve solar tiles replace traditional roofing materials? Yes. GreenMore's three-curve solar tiles function as both roofing material and power generator. They provide waterproofing, structural strength (5400 Pa load bearing), and energy production — a complete BIPV roofing solution. How do I choose the right type of three-curve solar tile for my project? Choose CIGS Thin-Film if your priority is aesthetics on curved roofs, lightweight design, or performance in cloudy regions. Choose BC if you want maximum power generation, high efficiency, and a premium uniform appearance. GreenMore's engineering team can provide customized recommendations based on roof structure, climate, and energy requirements. Reach out via our contact page or email export@gmsolarkit.com. 6. Get Started with GreenMore Whether your project focuses on aesthetics, efficiency, or long-term performance, GreenMore offers a three-curve solar tile solution tailored to your needs. Our three-curve tiles, photovoltaic bricks, and photovoltaic curtain walls are produced in-house using CIGS thin-film and BC back-contact technologies, with inverters and energy storage systems available as supporting components of the complete system. Ready to start your BIPV project? Visit our BIPV solutions page or contact us to discuss your requirements. L Luke · Product Manager, GreenMore Luke manages GreenMore's photovoltaic building-material range, from the CIGS thin-film triple-arch tile to the newer back-contact line. In the solar industry since 2017, he focuses on designs that are genuinely buildable, with honest specs and warranty terms that match the products actually shipped.