kjs55 Posted April 25 Posted April 25 Suggestion to add a third option for the ac losses power reference value, namely, a custom user-defined input value field. The reason for this is that sometimes ac losses are not defined at either of the two (2) presently available toggle options in PVsyst, namely, "PNomPV(ac) at STC" or "PNom (inverters)", but rather at some other ac losses power reference value (e.g., driven by the grid limit). Thanks.
MNWild Posted 7 hours ago Posted 7 hours ago (edited) One of my supreme annoyances over 11 years. PVsyst did final add ac losses and MPT losses in that big update so they did add KVA or base rating for other ac losses like power industry does. So we can enter load losses for equipment at certain ratings on right side. But for some reason the PVsyst just couldn't fix ac cable losses. I think it still still still rides with the MWdc installed on variants. PVsyst opted to keep tying it to DC rating * efficiency or something I can never decipher. PnomPVac at STC which makes no sense since AC power is independent of "standard test conditions" which is related to modules flash test nameplate and dc power...It's all tied back to a time I bet with dc/ac ratios were 1 to 1 so it all got mixed up. And Pnom (inverters) is an arbitrary .ond file rating, not what MVT are load loss tested too. All very fun to navigate. I sympathize. Edited 7 hours ago by MNWild
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