Performance of Enphase Microinverter Systems v. Pvwatts Estimates

SUMMARY Results The results of a recent field study of over 143 sites in operation for 6 months or more indicate that Enphase installations outperform their PVWatts estimates by 8% on average, with most sites outperforming by more than 11%. A review of similar published studies indicates that solar installations using standard inverters actually underperform PVWatts estimates by 8% on average. When considered together, these results indicate that Enphase Microinverters can improve the performance of solar installations by 16% on average versus standard inverter technology.