Advanced technology for maximum power point tracking(MPPT) (>98%)MPPT efficiency Wide input ... DC component.GridAnti-islanding, over/under voltage of grid, over/under frequency of grid. EnvironmentEnvironmentNo corrosion gas, flammable gas, oil mist, dust ... , VDE0126-1, AS4777, AS3100, G83/1, G59. ISO9001:2000 Hydro turbine grid tie inverter 1.5kw