Photovoltaic power systems - Reliability practices for operation

IEC TS 63265:2022 outlines methods that can be utilized to ensure reliability throughout the PVPS project phases. It is derived from a management motivation for long lasting and cost-effective energy performance, energy production, secure production and revenue, and safe function. The application of reliability practices in this document is designed to be practical and reduce the costs of unreliability. This document further identifies and defines a normative minimum set of processes and tools to meet the requirements of this document.
Key objectives of this document are to inform users of reliability tools and assessment methods (historic, predictive, and analytical) that can satisfy the stakeholders needs for dependable PV Power System (PVPS) operation. This document provides a fundamental process for ensuring reliability needs can be understood and met. IEC TS 63019 addresses availability which is a higher-level metric that combines reliability and maintainability, and it complements this document as a key normative standard. It should be used in combination with this document.

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IEC TS 63265

Edition 1.0 2022-06


Photovoltaic power systems – Reliability practices for operation
IEC TS 63265:2022-06(en)

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IEC TS 63265


Edition 1.0 2022-06





Photovoltaic power systems – Reliability practices for operation




ICS 27.160 ISBN 978-2-8322-3877-6

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® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TS 63265:2022 © IEC 2022
1 Scope . 6
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 9
3.1 Terms and definitions . 9
3.2 Abbreviated terms . 11
4 Interrelationship of reliability, availability and maintainability . 11
4.1 General . 11
4.2 Information model . 11
4.3 Link to IEC TS 63019 . 13
4.4 Benefits and justification for a robust reliability program . 14
5 Development phase of a PVPS project . 14
5.1 General .

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