SYSTEM Energy

Silicon Carbide transistors allow a weight reduction and performance improvement

Peak efficiency ratings of up to 98.7% on a wide input voltage range

REFUsol 020K-SCI model has enabled REFUsol to receive Plus X Award for this inverter using Silicon Carbide technology.

With a nominal power of 20KW AC, the transformerless inverter, which provides one MPPT and a peak efficiency of 98.7%, has been distinguished for innovation, high quality, functionality and ecology. The system uses specific power modules from Danfoss. One of the modules uses Silicon Carbide MOSFET Transistors from Rohm.

System Plus Consulting is publishing the reverse costing report of the REFUsol 020K-SCI.

Based on a complete teardown analysis, the report provides the bill-of-material of the product, an estimation of the production cost of the inverter as well as physical and economical analysis of Danfoss power modules.

Overview/Introduction 

• Company Profile : REFUsol
• Main Features
• Characteristics
• The Course of the Analysis

Physical Analysis 

• Views and Dimensions of the Packaging
• Packaging Opening
• Views and Dimensions of the Inverter
• Inverter Opening
• Storage and Sinusoidal Filter Chokes
• Housing
• Heatsink
• Power Board
• Power Modules
• Current Sensor Board
• Control Board
• Phytek Board
• Auxiliary Board
• Display Board
• Input Board & Output Boards

Cost Analysis 

• Estimation of the cost of the PCBs
• BOM Cost – Packaging
• Accessing the Power Modules
• Power Module Cost
• Power Module Price
• BOM Cost – Housing
• BOM Cost – Power Board
• BOM Cost – Current Sensor Board
• BOM Cost – Control Board
• BOM Cost – Phytek Board
• BOM Cost – Auxiliary Board
• BOM Cost – Display Board
• BOM Cost – Input Board & Output Boards
• Material Cost Breakdown

Added Value Analysis

• Details of Control Board AV Cost
• Details of System Assembly AV Cost
• Added Value Cost Breakdown
• 5. Estimated Price Analysis 178
• Estimation of the Selling Price
• Functional Cost Breakdown

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