IEC 61724-1:2021 

Photovoltaic system performance - Part 1: Monitoring

Note: a redline version of this publication exists
IEC 61724-1:2021 RLV


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IEC 61724-1:2021 is available as IEC 61724-1:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 61724-1:2021 outlines terminology, equipment, and methods for performance monitoring and analysis of photovoltaic (PV) systems. It also serves as a basis for other standards which rely upon the data collected. This document defines classes of photovoltaic (PV) performance monitoring systems and serves as guidance for monitoring system choices. This second edition cancels and replaces the first edition, published in 2017. This edition includes the following significant technical changes with respect to the previous edition:
- Monitoring of bifacial systems is introduced.
- Irradiance sensor requirements are updated.
- Soiling measurement is updated based on new technology.
- Class C monitoring systems are eliminated.
- Various requirements, recommendations and explanatory notes are updated.

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Additional information

Publication typeInternational Standard
Publication date2021-07-21
Available language(s)English/French
TC/SCTC 82 - Solar photovoltaic energy systemsrss
ICS27.160 - Solar energy engineering
Stability date  2026
File size2883 KB

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