Which of the following is NOT listed as a factor influencing the choice of inverter topology (central vs string vs microinverter)?

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Inverter topology is chosen based on how the DC side of the PV array is configured. System size, shading patterns, and module voltages determine how many modules can be tied together in strings, what voltage the array will present to the inverter, and how shading affects energy capture—all of which influence whether a central, string, or microinverter is most suitable. Battery voltage, on the other hand, relates to energy storage rather than the PV inverter’s arrangement, so it doesn’t drive the topology choice for a PV-only system. If storage is added, you’d deal with storage-specific inverters or hybrid solutions, but that concerns the storage side, not the basic PV inverter topology.