DC/AC Ratio Calculator

Optimize inverter loading ratio to balance clipping losses against improved energy harvest.

Total panel nameplate capacity
Inverter continuous output
Optional: GHI or POA
Soiling, wiring, mismatch

DC/AC Ratio Guidelines

Ratio Climate Notes
1.0-1.1Very SunnyMinimal clipping
1.1-1.2ModerateOptimal balance
1.2-1.3CloudyMore low-light hours
1.3-1.5Very CloudyMax energy capture

Understanding DC/AC Ratio

DC/AC Ratio = DC Array Size / Inverter AC Rating
Clipping occurs when DC > Inverter capacity

Higher ratios improve morning/evening and cloudy day production but increase peak clipping. The optimal ratio depends on local climate patterns.