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Fabian.HOQ

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Everything posted by Fabian.HOQ

  1. Hello everyone, I am working with PVsyst simulations and I would like to know how I can evaluate the losses associated with grid voltage variations on the inverter. My understanding is that when the AC voltage deviates from the nominal value, the inverter may increase the current to maintain the power, which could lead to limitations or losses. Is there any specific parameter or report in PVsyst that shows these losses due to operation outside the nominal grid voltage range, or should they be analyzed indirectly through "grid limitation" or another indicator? In addition, is it possible to analyze this effect in graphs or specific reports within the software, and what type of analysis could be obtained to quantify it?
  2. How should the PR P90 be determined in PV energy yield assessments? Specifically, what considerations should be taken into account regarding climate variability? Should the variability of the solar resource affect both the numerator (delivered energy) and the denominator (theoretical energy), as it would in real measured PR calculations, or should it only affect the numerator, as some simulation methodologies assume?
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