Fronius is one of the leading photovoltaic inverter manufacturers as well as a world market leader in high frequency welding technology. Headquartered in Wels, Austria the US subsidiary Fronius USA, LLC is located in Brighton, Michigan. Fronius has over 65 years of experience in developing innovative power conversion technologies and employees over 2800 globally. Fronius was founded in 1945 and has developed a revolutionary inverter concept that is used for grid-connected PV systems.