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A new standardized quality rating for photovoltaic systems has been launched by the Texxecure Rating Foundation, according to a report from pv magazine Deutschland. The Texxecure PV Quality Rating evaluates solar modules, inverters, and complete projects against uniform technical criteria, condensing technical risk into a single score ranging from AAA to D.
The system is intended for use by project developers, asset owners, financial institutions, investors, and insurance companies. It allows these parties to assess the investment soundness of ground-mounted solar projects and identify potential technical failure risks. The evaluation process is designed to start during a project’s planning phase.
The assessment involves two steps: a review of documentation followed by a physical on-site inspection. Both components contribute to the final rating. Projects that receive scores from AAA through B are granted a certificate and a detailed inspection report. The results are stored in a database, with the client controlling access to the rating information.
A central element of the system is a component Type-Rating, primarily for modules and inverters. Ratings for individual components are incorporated into the overall project evaluation via an algorithm. The rating can also be applied to existing installations for purposes such as resale, refinancing, or insurance.
The system was developed in collaboration with insurer HDI-Gerling and is reinsured by Munich Re. It has received support from individual banks and was referenced in an International Energy Agency report from August 2025. The rating is presented as an alternative or supplement to traditional technical due diligence, offering a complete and standardized technical evaluation that covers relevant ISO/IEC standards, quality management principles, and ESG criteria.
Inspections are carried out and certificates issued by certified engineering firms, known as rating bodies, which operate under established rules and procedures. Organizations already accredited to ISO/IEC-17000 follow a simplified admission process, while others must undergo an audit. Initial projects were conducted with TUV Rheinland, and other qualified engineering organizations may apply to become rating bodies.
The system is international in scope. Its ongoing development is managed by an advisory board and stakeholder groups, which also oversee the systematic integration of new technologies.
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