Freen Sol 440BI Bifacial Solar Panel

The Freen Sol 440BI is a high-efficiency bifacial P-type PERC solar module designed to generate power from both sides of the panel. By capturing sunlight on the front and reflected light on the rear, it delivers higher total energy yieldthan conventional monofacial panels – making it an excellent choice for rooftops, ground-mount systems, and commercial solar installations.

Built with 72 monocrystalline P-type bifacial cells and advanced glass-glass construction, the 440BI combines durability, long-term performance, and strong output under a wide range of environmental conditions.

Why Choose a Bifacial Module?

Unlike standard panels that use only the front side, the Freen Sol 440BI also converts light reflected from the ground and surrounding surfaces into electricity. Depending on installation conditions (surface reflectivity, tilt, height, and spacing), this can significantly increase total system production.

Freen Solar Pannels instruction

This makes the module especially effective on:
✔ Light-colored roofs
✔ Ground-mounted systems over grass, sand, gravel, or concrete
✔ Elevated mounting structures with good rear ventilation

Key Features

440 Wp Front-Side Rated Power
Strong baseline performance for residential and commercial systems.

Bifacial Energy Gain
Rear-side contribution can raise total output beyond the nameplate rating, depending on ground reflectivity (albedo) and system design.

High Module Efficiency
Up to 22.5% efficiency (front side at STC), ensuring more power per square meter.

Excellent Low-Light & Spectral Response
Strong performance across a wide light spectrum for better yield in real-world conditions.

Durable Glass-Glass Construction
3.2 mm high-transmission glass and robust encapsulation improve long-term reliability and environmental resistance.

Low Power Degradation
Engineered for stable long-term performance with linear degradation profile and strong resistance to LID & LeTID effects.

Electrical Specifications (STC – Front Side)

• Nominal Power (Pmax): 440 W

• Voltage at Pmax (Vmp): 40.5 V

• Current at Pmax (Imp): 10.95 A

• Open Circuit Voltage (Voc): 49.2 V

• Short Circuit Current (Isc): 11.58 A

• Module Efficiency: 21.94%

Mechanical & Installation Data

• Dimensions: 1891 × 996 × 35 mm

• Weight: 24.5 kg

• Cells: 72 monocrystalline P-type bifacial PERC (5BB)

• Junction Box: IP67, MC4 compatible

• Glass: High-transmission tempered glass

• Frame: Anodized aluminum

• Max System Voltage: 1500 V

• Operating Temperature: −40 °C to +85 °C

• Mechanical Load: 5400 Pa front / 2400 Pa rear

Ideal For

• Residential rooftop systems
• Commercial & industrial solar plants
• Ground-mounted solar farms
• Hybrid systems paired with wind and battery storage

Warranty & Reliability

The Freen Sol 440BI is backed by:

✔ 12-year product warranty
✔ 30-year linear performance warranty
✔ Certified to major international standards for safety and durability