Power consumption at night is grayed out

Dear Sam,

Do you mean that the "power consumption during operation" input variable is greyed out?

For the flat-plate PV model and the "Inverter Datasheet" option on the Inverter page, you must use the "manufacturer efficiency" instead of the "weighted efficiency" if you want to specify a power consumption during operation value.

The weighted efficiency accounts for the inverter's own power consumption, so it is not necessary to provide that loss as an explicit value.

Best regards,
Paul.