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Power Tolerance in Solar Panels
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What does Power tolerance mean on solar module datasheets?
Power tolerance on solar module datasheets indicates the acceptable range within which the actual power output of the module may vary from its rated power output under standard test conditions (STC). It is typically expressed as a percentage. For example, a solar module with a power tolerance of ±3% means that its actual power output may vary by up to 3% above or below the rated power output listed on the datasheet. This tolerance accounts for variations in manufacturing processes and ensures that customers receive modules with power outputs within an acceptable range. Modules with tighter power tolerances typically command a higher price due to their consistency and reliability in performance.
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