At the SNEC 2025 event in Shanghai, Sungrow Hydrogen and Wison Engineering introduced a groundbreaking solution in the green energy sector: MegaFlex 'Plant-as-a-Product.' This turnkey system aims to redefine green hydrogen production by offering MW-to-GW scalability and a fully outdoor modular design. By overcoming traditional indoor plant limitations, the system enables faster deployment, lower costs, and enhanced operational reliability, thus setting new industry standards globally. The MegaFlex solution combines standardized modular architecture with intelligent engineering, transforming conventional construction projects into a replicable industrial model. It integrates core electrolysis equipment with plant-wide utilities and auxiliary systems, such as power supply, cooling systems, water treatment, and intelligent controls. This approach significantly reduces delivery timelines, construction costs, and on-site risks while improving operational reliability. One of the key technical breakthroughs of the system is Sungrow Hydrogen's advanced water electrolysis technology. This technology ensures reliable outdoor operation by featuring corrosion-resistant equipment that can withstand extreme temperatures, water ingress, dust, corrosion, lightning, and sunlight. The smaller footprint and lower total costs of the system, combined with a maintenance-optimized design, enhance serviceability and operational reliability. The MegaFlex solution will soon undergo real-world validation in ACME's green ammonia project in Oman, demonstrating its potential in large-scale decarbonization efforts. This innovative approach not only delivers technical excellence but also provides a blueprint for scalable, streamlined deployment of green hydrogen production systems.