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Enphase S280 Microinverter

Enphase S280 Microinverter

Product code
EUR 2 990
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In a continuously expanding market, with a forecast compound annual growth rate of 5.9% through to 2021, Enphase Energy remains the world’s leading solar microinverter company. It has shipped more than 11 million units to date, with 460,000 residential and commercial photovoltaic installations worldwide.

Designed for high-powered, 60-cell modules, the advanced grid-ready Enphase S280 Microinverter achieves the highest efficiency for module-level power electronics and reduces the cost per watt. With its all-AC approach, the S280 simplifies design and installation for 280VA installations, and delivers optimal energy harvest. The S280 is compatible with storage systems, including battery management systems.

This inverter is the result of Enphase’s desire to enhance integration with a new generation of dedicated application specific integrated circuit (ASIC) in its topology. This approach reduces the size and number of components and improves reliability, safety and functionality.

Based on a complete teardown analysis of the Enphase S280, this report provides the system’s complete bill of materials (BOM) and manufacturing cost. Physical and cost analysis of the microinverter ASIC is also included in the report.

A comparison with Enphase’s previous microinverters is provided, highlighting the improvement made at the hardware level resulting in a shorter bill of material and significant cost reduction.


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Overview / Introduction

  • Executive Summary
  • Reverse Costing Methodology

Company Profile

  • Enphase
  • S280 Features

Physical Analysis

  • Views and Dimensions of the Inverter
  • Inverter Opening
  • Cable Support
  • Connectors of the Inverter
  • Electronic Board
    • Top side – overview
    • Top side – high definition photo
    • Top side – P.C.B. markings
    • Top side – main component markings
    • Top side – main component identification
    • Top side – discrete component markings
    • Top side – discrete component identification
    • Top side – magnetic component identification
    • Top side – protection component identification
    • Bottom side – high definition photo
    • Bottom side – component identification
    • Potting compound analysis

Cost Analysis

  • Investigating the BOM
  • Estimation of the Cost of the PCB
  • Estimation of the Cost of the Enphase MB8AC3100 ASIC
  • BOM Cost – Electronic Board
  • Estimation of the Cost of the Housing Parts
  • BOM Housing
  • Material Cost Breakdown
  • Investigating the Added Value (AV) Cost
  • Electronic Board Manufacturing Flow
  • Details of the Electronic Board AV Cost
  • Details of the System Assembly AV Cost
  • Added Value Cost Breakdown
  • Manufacturing Cost Breakdown

Estimated Price Analysis

  • Estimation of the Manufacturing Price
  • Estimation of the Selling Price
  • Functional Cost Breakdown
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