When sourcing 700W+ high-power modules, you must prioritize N-Type TOPCon or HJT (Heterojunction Technology) cells, as these offer higher efficiency and lower degradation compared to older P-type technology. Ensure the Module Efficiency is at least 22.5% to justify the large footprint. Additionally, verify the Temperature Coefficient (ideally below -0.30%/°C) to ensure stable power output in high-heat environments, and check for Bifaciality factors if the installation site allows for rear-side energy gain.