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ENPHASE ENERGY M250 Solar Microinverter

2 490 €

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Yole RS146 Enphase M250 Microinverter CoverFlyer4th generation of Enphase Energy microinverter increased power, efficiency, MPPT. 
What is different inside from previous M215 ?

The M250 Photovoltaic Inverter is the 4th Generation micro-inverter released by Enphase Energy. It produces 250 Watts peak AC output power with MPPT to optimize efficiency in difficult solar conditions.

In the M250, the DC circuit is isolated and insulated from ground, so no External Ground Electrode Conductor (GEC) is required. The M250 is fully filled with Resin to protect the components from the weather constraints and to improve the thermal dissipation.

Based on a complete teardown analysis, the report provides an estimation of the production cost of the M250 inverter, and a comparison with previous report on M215.

This reverse costing report contains:

  • Detailed photos
  • Material analysis
  • Manufacturing process flow
  • In-depth economical analysis
  • Manufacturing cost breakdown
  • Selling price estimation

Table of contents

1. Overview / Introduction 3
> Executive Summary
> Differences Unveiled
> Reverse Costing Methodology
> Company Profile : Enphase Energy
> Main Features

2. Physical Analysis 10

> Views and Dimensions of the Inverter
> Inverter Opening
> Connectors of the Inverter
- Electronic Board
- Electronic Board – Top Side – Global View
- Electronic Board – Top Side – High Definition Photo
- Electronic Board – Top Side –  Markings
- Electronic Board – Top Side – Components Identification
- Electronic Board – Bottom Side – Global View
- Electronic Board – Bottom Side – High Definition Photo
- Electronic Board – Bottom Side – Components Identification

3. BOM Cost 42

> Accessing the BOM
> Estimation of the cost of the PCB
> Estimation of the cost of the Enphase ASIC
> BOM Cost – Electronic Board
> Estimation of the cost of the Housing Parts
> BOM Housing
> Material Cost Breakdown

 4. Added Value Cost 63
> Assessing 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

5. Estimation of the selling price 73

> Manufacturing cost breakdown 
> Estimation of the Selling Price
> Comparison between M250 and M215

6. Contacts 79



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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