# Number of MPPT Channels

How many independent maximum power point trackers the inverter has, each able to optimise a separate group of strings at its own voltage and current. More channels allow strings on different roof orientations or with different shading to work without dragging each other down.

Source: https://inverterdata.com/en/glossary/number-of-mppt-channels/
Site: InverterData (inverterdata.com) — open technical specification database
Last updated: 2026-08-24
License: free to quote with attribution to inverterdata.com

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One tracker forces every connected string to sit at a single compromise operating point, so a roof with an east face and a west face, or one string partly shaded in the morning, loses energy. Two or more independent trackers let each group find its own optimum. This is the specification that most often decides whether a slightly cheaper inverter is actually suitable for a complex roof. Check the per-channel current and power limits as well as the count — channels are not always symmetrical, and a second channel is sometimes rated for fewer strings than the first.

## This spec across the catalog

Recorded on 77 models in this database, from 1 to 30, averaging 3.91.