UL launches solar inspection certificate service for small PV power plants

Underwriters Laboratories LLC (UL) offers a new PV power plant certificate: a solar plant verification and inspection service for commercial and industrial large megawatt-scale PV projects. UL offers this service to solar plant developers, owners and financiers as an option for third-party independent assessment of a PV power plant's creditability and quality. The delivered certificate attests that a PV power plant complies with the criteria outlined in the inspection program, based on the IEC 62446-1 standard, at the time of the inspection. All PV plant inspection certificates will be made publicly accessible on UL's online directory.
According to UL, the goal of this new service is to verify the performance of PV systems at stages of commissioning or during operation. The company offers two tiers of assessment that include a desktop review of the power plant's components, visual field inspection, and different levels of testing of a plant's components for safety and performance. Though this service is targeted to small PV power plants, UL expects that this offering will be useful to developers and owners of larger PV plants as well.
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