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REFUsol020K-SCI 20 KW Commercial PV Inverter

refusol spc april2014
4 490 €

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SC Refu 2014Silicon 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 and Silicon Carbide Diodes from another manufacturer.

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.

Complete Teardown with:

  • Detailed Photos
  • Material Analysis
  • Bill of Material
  • Power modules
  • Manufacturing Process Flow
  • Manufacturing Cost Analysis
  • Selling Price Estimation
SC RS160 REFUSol 020K-SCI  PV Inverter

Table of contents

1 Overview/Introduction 3
> Executive Summary
> Company Profile : REFUsol
> Main Features
> Characteristics
> The Course of the Analysis

2. Physical Analysis 11

> 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

3. Cost Analysis 131

> 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

4. Added Value Analysis 167
> Details of Control Board AV Cost
> Details of System Assembly AV Cost
>Added Value Cost Breakdown

5. Estimated Price Analysis 179

> Estimation of the Selling Price
> Functional Cost Breakdown

Contact 185



Across the Enterprise, from marketing to purchasing and R&D, product manufacturing cost is a major factor which has to be measured and then optimized. Since 1993, System Plus Consulting’s mission has been to develop and sell the right tools and services to meet these costing requirements.

System Plus Consulting utilizes an engineering approach to cost. Cost models and technology expertise are combined to provide customers with an accurate and objective estimation of manufacturing costs and selling prices.

Headquartered in Nantes, France, System Plus Consulting is specialized in technology and cost analysis of electronic components and systems. During our 20 years in business, we have built and refined detailed cost models as the primary tools for hundreds of analyses. The highly qualified System Plus cost engineers combine broad and deep skills in semiconductor and electronics technologies with years of experience in cost modeling.

We offer:
− Custom reverse costing analyses: technology analysis followed by cost evaluation
− Standard reverse costing reports: regular publications on innovative products (available from our catalogue)
− Costing tools: software tools combining models and data to perform cost analysis

System Plus Consulting analyzes any type of electronic devices and systems, with a special focus on semiconductor technologies. Major fields of technology and cost expertise are:
− Integrated Circuits
− Power Devices and Modules
− MEMS & Sensors
− Photonics: LED, Image Sensors
− Packaging including wafer level
− Electronic Boards and Systems

Our analyses are used by Purchasing Departments to measure their suppliers’ cost structure, R&D Departments to confirm technological choices depending on their impact on costs, and Benchmarking/Marketing Departments to monitor the products on the market.

System Plus Consulting is committed to provide a high level of service:
− Delivery of reports and custom analyses with a minimum lead time.
− Results presentation and online Q&A sessions when support is needed.
− Open methodology and full confidentiality in order to maintain a trustful collaboration.

Since 2008, our partnership with YOLE Développement has allowed us to stay at the forefront of technologies and has added a market view to our reports.

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