It lets the inverter connect more naturally to the electrical architecture used in many North American homes. Standard 120V circuits and larger 240V loads can be supplied from the same split phase inverter platform without adding a separate transformer just to create the second voltage level. That simplifies system planning for homes with mixed loads, although the final panel configuration, neutral arrangement and protection devices should still follow local electrical requirements and the installation manual. It also aligns more naturally with common North American residential service layouts.
