RETC solar module testing report finds 12 high-achieving brands
California-based independent engineering and certification test laboratory Renewable Energy Test Center (RETC) has released its “2025 PV Module Index Report,” which tests solar panels for reliability, performance and quality. This year, RETC recognized 21 module manufacturers for high achievement across 14 testing sequences. RETC also identified 12 manufacturers as meeting the criteria for its “Overall… …
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