LONGi HIMO 7 Solar Panel

LONGi Hi-MO 7: Description & Overview

The LONGi Hi-MO 7 is a flagship, ultra-high-power bifacial solar module built on the company’s pioneering Hybrid Passivated Back Contact (HPBC) cell technology. It represents a significant leap in efficiency and performance, specifically engineered for utility-scale solar power plants where maximizing energy yield and lowering the Levelized Cost of Energy (LCOE) are paramount.

Core Technology: HPBC (Hybrid Passivated Back Contact)

This is the heart of Hi-MO 7’s advantage. Unlike conventional PERC cells or even standard TOPCon, HPBC is an advanced back-contact cell design.

• All Electrodes on the Back: All busbars and electrical contacts are moved to the rear of the cell. This eliminates all front-side shading from metal grids, dramatically increasing the light-receiving (active) area on the front surface.

• Superior Light Capture: The completely uniform, all-black front surface with no visible lines reduces reflection and significantly improves light absorption.

• Enhanced Passivation: Advanced passivation layers on both the front and rear minimize the recombination of electrons, leading to higher voltage and efficiency.

Key Features & Specifications (Typical of the Product Line)

• Exceptional Power Output: Modules in this series regularly exceed 600W of nominal power, with some variants reaching up to 615W or more. This ultra-high wattage reduces the number of panels, mounts, and cables needed per megawatt, lowering balance-of-system (BOS) costs.

• Record-High Efficiency: HPBC technology enables module efficiencies of over 23%, placing it at the very top tier of commercially available mass-produced panels.

• Bifacial Design: It captures direct sunlight on the front and reflected/ambient light on the rear. With a bifaciality factor typically >65%, it can generate additional energy gains of 10-25% depending on ground conditions (e.g., white gravel, grass).

• All-Black Aesthetic: The front side is a uniform, sleek black with no visible grid lines. This is a byproduct of the back-contact technology and is often highlighted in marketing, though its primary application is utility-scale.

• Superior Performance in Real Conditions:

  • Better Low-Light Performance: Efficiently generates power earlier in the morning and later in the evening.

  • Lower Temperature Coefficient: Around -0.29%/°C, meaning power output degrades less in high-heat environments compared to standard panels (-0.34%/°C or higher). This is crucial for hot climates.

  • Excellent Reliability: Meets stringent IEC certification standards for mechanical load, hail impact, and PID (Potential Induced Degradation) resistance.

Target Applications & Market Position

• Primary Market: Large-Scale Utility Solar Farms. The combination of ultra-high power, high efficiency, and bifacial gain is engineered to minimize land use and maximize the return on investment (ROI) for project developers.

• Secondary Market: Commercial & Industrial (C&I) Rooftops where high energy density is needed to maximize limited space.

• Positioning: LONGi positions the Hi-MO 7 as its premium, high-efficiency solution for projects where achieving the lowest possible LCOE is the primary driver. It sits above the mainstream Hi-MO 5 (PERC) and Hi-MO 6 (focused on distributed generation) in their product portfolio.

Value Proposition Summary

The LONGi Hi-MO 7 is not just a panel with more watts; it’s a system-level solution designed to reduce the overall cost of solar energy. By generating more power per panel, more energy per installed watt (kWh/kWp), and doing so reliably over 25+ years, it directly contributes to a faster payback period and higher lifetime project returns for large-scale installations.

In short: The LONGi Hi-MO 7 is a technological powerhouse that combines the game-changing HPBC cell architecture with bifaciality to deliver top-tier efficiency and energy yield for the most demanding, cost-sensitive solar projects in the world.