Q: Sean My question is about determining the minimum number of modules required to turn the inverter on. All modules I have reviewed have "temp coefficient for Voc" but none have "temp coefficient for Vmp" Example from Canadian Solar module Temperature Coefficient (Pmax) -0.43% / °C Temperature Coefficient (Voc) -0.34 % / °C Temperature Coefficient (Isc) 0.065 % / °C Is Temperature Coefficient (Pmax) -0.43% / °C used when calculating minimum number of modules required? Thanks A: Most module datasheets do not come with the temperature coefficient of Vmp, however whenever I have seen the manufacturer list the temperature coefficient of Vmp, it has been the same as the temperature coefficient of power, so I just use the temperature coefficient of power. Thanks, Sean White |

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