Wind energy, as an important form of clean and renewable energy, has broad development prospects. Wind power generation and energy storage equipments are often installed in high-altitude or nearshore areas with high system voltage, which puts higher requirements on the insulation performance and environmental adaptability of isolation devices. Hualian’s ultra-high voltage photo MOS relays and reinforced insulation optocouplers are committed to leveraging the core advantages of optical isolation, they are designed for adverse environments like cold and hot shock, vibration, unstable voltage, high altitude, high salinity, etc, to provide safe and reliable isolation solutions for high-voltage wind power and energy storage.