Which term among the inverter options is not a standard inverter type described in PV systems?

Which term among the inverter options is not a standard inverter type described in PV systems?

• A. Multimode
• B. Standalone
• C. Interactive
• D. String

Answer: (D)

Understanding inverter classifications in PV systems: Inverters are described by how they interface with the grid and energy storage. Standalone inverters are used in off-grid setups, providing power without grid connection. Interactive inverters are grid-connected and designed to interact with the utility, supplying or drawing power as needed. Multimode (hybrid) inverters can operate in more than one mode, switching between standalone, grid-tied, or battery-backed operation depending on conditions. The term that is not a standard inverter type is "string" because it denotes a configuration of PV modules (a string of modules connected in series) rather than an inverter type or mode. While you might hear about a string inverter in practice, the word "string" by itself does not describe an inverter category, so it isn’t a standard inverter type term.

Understanding inverter classifications in PV systems: Inverters are described by how they interface with the grid and energy storage. Standalone inverters are used in off-grid setups, providing power without grid connection. Interactive inverters are grid-connected and designed to interact with the utility, supplying or drawing power as needed. Multimode (hybrid) inverters can operate in more than one mode, switching between standalone, grid-tied, or battery-backed operation depending on conditions. The term that is not a standard inverter type is "string" because it denotes a configuration of PV modules (a string of modules connected in series) rather than an inverter type or mode. While you might hear about a string inverter in practice, the word "string" by itself does not describe an inverter category, so it isn’t a standard inverter type term.