---
title: How many solar modules can an ECU reliably communicate with and demonstrate power production?
description: How many solar modules can an ECU reliably communicate with and demonstrate power production?
---

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# How many solar modules can an ECU reliably communicate with and demonstrate power production?

While you can connect up to a maximum of 100 microinverters/ECU. We recommend connecting no more than 80 in order to optimize performance. 

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