LONGi Unveils Hi-MO9 Prime Solar Modules to Boost Utility-Scale Yields

The Hi-MO9 Prime series addresses the growing pressure on solar developers to increase installed capacity despite tightening land availability and grid limitations. Built on LONGi’s proprietary HPBC2.0 cell platform, the modules achieve a power output of 680W and an efficiency rating of 25.2%. By moving all electrical contacts to the rear of the cell, the design eliminates front-side obstructions, allowing for superior light absorption and enhanced performance in dense project layouts.

In a simulated 10-hectare project in the UK with a 50% Ground Coverage Ratio, the Hi-MO9 Prime demonstrated a 4.62% increase in installed capacity compared to standard non-BC modules. This shift from 12.00MW to 12.56MW yields an additional 648.4MWh of electricity annually. Furthermore, the module's parallel cell structure provides robust shading tolerance; it reduces power loss by more than 70% when cells are partially obscured by dust or row-to-row shadows. To ensure long-term durability over a 30-year asset lifespan, LONGi integrated its Selective Temperature Alloy Connection technology, which mitigates thermal stress during production and stabilizes cell-level performance.