Sungrow, a China-based provider of inverter and energy storage systems, has received approval from Brazil’s National Electric System Operator (ONS) for all inverter models. The certification process was initiated by ONS under Report RAP 0012/2023 after a nationwide blackout occurred in August 2023. Sungrow’s inverters were evaluated for compliance with grid stability requirements, including reactive power support and low-voltage ride-through capabilities. In Level 1 testing, Sungrow used PSCAD models with semi-physical controllers to verify hardware and simulation consistency. In Level 2, Sungrow developed ANATEM models based on PSCAD-validated data for electromechanical transient behavior analysis. The certification covered all Sungrow inverter types, including central, string, and modular systems sold across Brazil. Sungrow’s global and local engineering teams, along with consultants, were involved in meeting the ONS technical requirements. Sungrow’s inverters are now confirmed as technically suitable for integration into Brazil’s National Interconnected System (SIN). Earlier this year, Sungrow’s SG350HX inverters were deployed at a 70 MWp solar park in Simo, Finland, near the Arctic Circle.