pvwatts inverter model

This is a plot of the pvwatts inverter model. Nominal efficiency is 92%, but if the input power is between 10 and 100%, a 4th order polynomial is used to calculate efficiency, and convert dc power to ac. If this is accurate (I haven’t yet found any efficiency curves published by inverter manufacturers), then there are some clear implications for string sizing.

pvwatts inverter model

pvwatts inverter model

Leave a Reply

Your email address will not be published. Required fields are marked *