Goodwe GW320K-UT

The GoodWe GW320K‑UT is a three‑phase string inverter for PV ground‑mounted systems and large commercial rooftop installations in a 1500‑V system design. With a rated AC output of 320 kW and 15 independent MPP trackers, it is suitable for high string densities and flexible string layouts. The high European efficiency of 98.8% reduces conversion losses during continuous operation and supports economically efficient large‑scale plant concepts. The design for high input voltages up to 1500 V lowers system current levels and cable losses. The robust enclosure with IP66 protection rating is designed for permanent outdoor installation. Communication interfaces such as HPLC and RS485 enable integration into higher‑level plant control systems, monitoring solutions, and remote maintenance concepts, allowing the inverter to be seamlessly integrated into utility‑scale structures.

• TechnologyThe inverter operates as a string‑based 1500‑V system topology with distributed MPPT tracking. The 15 MPP trackers allow differentiated adaptation to various module orientations or subsystems, which minimizes yield losses especially in large generator fields with inhomogeneities. The maximum input current of 30 A per MPPT supports high‑power modern module strings without relying on high‑current variants. Power conversion is designed for three‑phase grids and enables stable feed‑in in the high‑power range.
  
  Power and system architecture
  • 1500‑V DC design reduces currents and cable losses in large PV arrays
  • 15 MPPTs enable flexible string allocation in complex generator layouts
  • High European efficiency for efficient continuous operation at maximum output
  • Three‑phase feed‑in for grid connections in commercial and utility applications
• ConnectivityWired communication interfaces are available for system integration. RS485 enables classic integration into string monitoring systems and plant controllers, while HPLC supports the use of existing AC lines for data transmission. This reduces the need for communication cabling and installation effort. The interfaces are designed for operation in large plant clusters and support centralized monitoring of multiple inverters. This is particularly relevant for operations management and fault analysis in PV power plants.
  
  Interfaces for plant operation
  • RS485 for robust, industry‑proven data communication in the field
  • HPLC enables data transmission via existing AC infrastructure
  • Suitable for central plant control and remote monitoring
  • Scalable communication for multiple inverters per plant
• WarrantyA manufacturer standard product warranty is offered for the GW320K‑UT, as is typical for utility‑scale string inverters. This covers manufacturing and material defects and forms the basis for predictable operation and maintenance concepts. For EPCs and operators, this is relevant because warranty periods must be considered in maintenance contracts and economic calculations. Extended warranty options can be added on a project‑specific basis.
  
  Warranty basis
  • Standard manufacturer warranty for professional large‑scale plants
  • Planning security for O&M concepts
  • Relevance for lifecycle and cost calculations
  • Project‑dependent extension possible
• SustainabilityThe high efficiency of the inverter significantly reduces system‑related energy losses and thus contributes to an improved overall plant efficiency throughout its entire operating life. The 1500‑V architecture lowers material requirements for DC cabling and minimizes line losses. The long‑term design for continuous operation and outdoor installation reduces replacement frequency, saving resources and service effort. These aspects support sustainable operating concepts for large PV generation plants.
  
  Energy and resource efficiency
  • High efficiency reduces conversion losses over daily and annual operation
  • 1500‑V design reduces copper demand and line losses
  • Long‑life design for reduced replacement requirements
  • Suitable for sustainable large‑scale PV projects
• QualityThe enclosure with IP66 protection rating is designed for use in demanding outdoor environments and provides reliable protection against dust and powerful water jets. The mechanical design as well as the dimensions of 1120 × 810 × 368 mm are intended for stationary installation in ground‑mounted or industrial systems. The robust construction supports stable long‑term operation even under changing environmental conditions and reduces weather‑related failures.
  
  Mechanical and electrical robustness
  • IP66 protection for permanent outdoor installation
  • Industrial‑grade design for large‑scale plants
  • High operational reliability under weather exposure
  • Designed for continuous full‑load profiles
• ExpandabilityThe use of multiple communication interfaces allows existing plants to be easily expanded with additional inverters of the same type. Thanks to the high number of MPPTs, the GW320K‑UT can also be deployed modularly in different generator sections. This simplifies the scaling of PV power plants in construction phases and supports flexible project stages without fundamentally adapting the existing system architecture.
  
  Scalable plant concepts
  • Easy integration of additional inverters into existing plants
  • Modular string and MPPT utilization for construction phases
  • Compatible with central monitoring and control systems
  • Suitable for stepwise plant expansions