Spain-headquartered PVH’s Module Compatibility Letter has confirmed that photovoltaic (PV) modules were mechanically and environmentally compatible with solar trackers. It was issued to ensure compliance with industry standards and maintain optimal system performance. IEC 61215 has set requirements for crystalline silicon PV modules but excluded tracker structures, making additional evaluations necessary. IEC 62817 for solar trackers was often considered alongside these requirements. The letter included manufacturer details, technical specifications, evaluation results, installation recommendations, and operational limitations. PVH’s process included initiating requests, exchanging specifications, conducting engineering reviews, and issuing signed documentation. Certificates were updated when design changes occurred. The letter’s benefits included compliance with international standards, enhanced safety, clear warranty responsibilities, and reliable long-term performance. This process ensured modules and trackers worked together effectively under varying environmental conditions.