Overview
IEC TS 62989:2018 - Primary Optics for Concentrator Photovoltaic Systems is a technical specification developed by the International Electrotechnical Commission (IEC) under Technical Committee 82, focusing on solar photovoltaic energy systems. This specification outlines the essential characteristics and measurement methods for primary optical elements-such as lenses and mirrors-used in concentrator photovoltaic (CPV) systems. These elements play a critical role in directing and focusing sunlight onto photovoltaic cells to maximize energy conversion efficiency.
The document provides guidance on optical performance, mechanical geometry, mechanical strength, materials, and surface morphology. It supports manufacturers, system integrators, test labs, and stakeholders in specifying, evaluating, and comparing primary optics for CPV modules, ensuring consistent quality and facilitating the global adoption of high-performance solar technologies.
Key Topics
IEC TS 62989:2018 covers a comprehensive set of characteristics and parameters for primary optics in CPV modules:
Applications
The practical value of IEC TS 62989:2018 is found in its wide range of applications across the solar energy industry:
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Product Specification and Quality Control
- Enables manufacturers to benchmark and document the quality of lenses and mirrors against internationally standardized metrics.
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Module Development and Integration
- Assists CPV module and system integrators in selecting and validating primary optics with optimized efficiency, durability, and performance.
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Testing and Certification
- Provides test laboratories with precise procedures for evaluating the optical and mechanical properties of CPV primary optics, supporting reliable certification and comparison.
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Procurement and Compliance
- Facilitates transparent communication of product characteristics between manufacturers, buyers, and regulatory authorities.
- Assists in compliance with related environmental, health, and safety requirements.
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Innovation and R&D
- Supports research and development teams exploring new materials, coatings, or geometries for increased solar concentration and reliability.
Related Standards
IEC TS 62989:2018 makes reference to and is complemented by several key international standards:
- IEC 60050-845: International Electrotechnical Vocabulary – Lighting
- IEC 60904-3: Photovoltaic Devices – Measurement principles for terrestrial PV solar devices
- IEC 62108: CPV Modules and Assemblies – Design qualification and type approval
- IEC 62788-1-4: Measurement procedures for PV module encapsulants
- ISO 291: Plastics – Standard atmospheres for conditioning and testing
- ISO 10110 series: Optics and photonics – Preparation of drawings for optical elements
- ISO 11664 series: Colorimetry standards for defining color characteristics
- ISO 14782: Plastics – Determination of haze
By adhering to IEC TS 62989:2018 alongside these related standards, organizations ensure robustness in product development and quality assurance for concentrator photovoltaic systems, thereby contributing to the advancement of solar energy technologies worldwide.
Keywords: concentrator photovoltaic systems, CPV, primary optics, IEC TS 62989, lenses, mirrors, solar energy, optical performance, measurement methods, photovoltaic module testing, international standards.