PV ___ is an electric power system designed to supply usable solar power by means of photovoltaics.

• A. System
• B. String
• C. Module
• D. Cell

Answer: (A)

A PV system is the electric power system designed to supply usable solar power by means of photovoltaics. It covers everything needed to convert sunlight into usable electricity and deliver it to a load or the grid, including modules (panels), wiring, racking, inverters, and other balance-of-system components.

A string is just a series-connected group of modules within the system, not the whole setup. A module is a single panel composed of multiple cells. A cell is the basic photovoltaic cell that generates electricity, but on its own it can’t deliver usable power without the rest of the system.