Bifacial Solar Panels

Specific PV applications

  • PV Panel Recycling
  • PV Panel Renovation Technology
  • High-Temperature Solar PV Panels
  • Polar Star
  • Hybrid Photovoltaic
  • Solar Concentrators
  • Bifacial Solar Panels
  • Solar Street Lamp
  • TRAXLE Solar Pumping Systems
  • Photovoltaic Systems

Single Crystal and Polycrystalline Solar Panels

We provide certified solar photovoltaic panels (IEC 61215 standard), currently available in 180W capacity (300W versions coming soon). These panels are also available in bulk for wholesale customers.

Bifacial Solar PV Panels

The TRAXLE photovoltaic (PV) system effectively combines TRAXLE solar trackers with bifacial TRAXLE c-Si single crystal PV modules, achieving up to 55% higher energy generation compared to stationary PV systems.
 In seasonal variations, the increase can reach 75% more output.

Technical Specifications: Bifacial Panel 180W
ParameterFront SideBack Side
Panel Type180/90 (24)—
PV CellSi – Mono (Bifacial)—
Power ± 5% [W]18090
Current at Max. Power (Imp) [A]5.292.65
Voltage at Max. Power (Vmp) [V]3434
Nominal Voltage [V]24—
Short Circuit Current (Isc) [A]6.233.11
Open Circuit Voltage (Voc) [V]45.643.6

Dimensions:

  • Panel Area: 1.27 m²
  • Length: 1575 mm
  • Width: 807 mm
  • Height: 46 mm
  • Solar Cell Size: 156 x 156 mm
  • Cell Configuration: 72 cells (6 x 12)
 
Operational Temperature
  • Both bifacial and unilateral PV panels are made by the same manufacturers with similar designs.

  • Key differences in bifacial panels:

    1. Transparent glass on the rear side instead of white laminate.

    2. Rear electrode uses a plated rack instead of full-area contact.
Temperature Performance:
  • Test conditions: Summer, before noon, radiation concentration = 1.5, wind < 1 m/s, air temperature = 22°C.
  • Results:
    • Bifacial panel operating temp = 41°C
    • Unilateral panel operating temp = 53°C
    • Bifacial panels run 12°C cooler, improving efficiency and durability.
Comparison with Standard PV Modules

Bifacial panels deliver 10–20% more energy compared to unilateral panels of the same power rating due to:

  1. Albedo Effect (Reflected Light):

    • Rear side captures reflected light from surfaces (soil, sand, snow, lime walls).
    • Typical gain: +5–10% more energy depending on reflectivity.

  2. Morning Advantage:

    • Solar trackers face west overnight. After sunrise, rear panels capture direct sunlight until system re-aligns eastward.
    • Adds +2–5% more energy.

  3. Lower Operating Temperatures:

    • Bifacial panels allow infrared transmission and natural cooling.
    • Operate 5–12°C cooler than unilateral panels.
    • Lower heat = +3–5% energy yield + extended lifespan (slower polymer degradation).

Combined Effect:

  • Energy increase of 10–20% with bifacial panels on solar trackers.

  • With concentrators and mobile stands, the energy gain may reach 100%.

  • In pumping systems, water output can increase by up to 150% due to longer operation above threshold levels.
Key Advantages of Bifacial Panels
  • Higher efficiency due to dual-side light absorption.

  • Lower thermal stress (cooler operation).

  • Better returns on mobile/trackers compared to stationary systems.

  • Improved durability and longer service life.

  • Minimal price difference compared to unilateral modules, making bifacial the smarter choice.