Optimum inverter sizing in consideration of irradiance pattern and PV incentives

This paper proposes a general method of sizing the inverter for a PV system. The method evaluates effects of PV incentive policies, inverter efficiency curves, and inverter protection schemes on optimum inverter sizing through system-level cost analysis. Specifically, different scenarios of PV incentives are discussed and compared to show that the optimal inverter size varies notably by location and context. © 2011 IEEE.