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Look for documented certification of the complete assembly, where required—not merely certified components inside it. UL identifies UL 1741 among the standards it uses for PV combiner evaluation; the applicable certification depends on the product and application. DC disconnects must also carry suitable DC ratings.
For every purchase, require these before placing the order:
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A written compliance and exceptions list: Every requirement matched to the offered equipment, with deviations clearly identified.
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Approval drawings: Dimensions, weight, cable entries, terminals, electrical diagrams, and foundation or mounting requirements.
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A defined testing package: Routine factory tests, any required witnessed acceptance tests, and commissioning responsibilities.
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A credible delivery schedule: State whether lead time begins at order placement, drawing approval, or another milestone.
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Complete commercial terms: Freight, unloading, installation, startup, spares, warranty start date, field labor coverage, and exclusions.
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Evidence of service capability: Comparable installations, local support, response commitments, and parts availability.
The most useful buyer question Unicorn Solar can get from its customers is: “Show us the documentation proving this exact configuration meets our project requirements, and identify everything excluded from your price.”
.…by Robert Benedict
Unicorn Solar is watching, studying, and working with companies innovating within the solar and decarbonization space. Please reach out to us, and we can work together to build a more efficient energy world.
If you have any questions or would like to work with a team of professionals who can help you achieve your success, please don't hesitate to contact Robert, Karlita, Sebastian, or Jayde for more information. Also, if you have supply-related questions, please contact Sarahy. For BESS, inverter, and transformer questions, please reach out to George or Sebastian.
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