Given below are two statements: Statement I: Increasingly, photovoltaic panels…
2022
Given below are two statements:
Statement I: Increasingly, photovoltaic panels are being used to supplement electrical energy from the power grid.
Statement II: One issue with grid-connected photovoltaics is that PV cells produce Alternating Current (AC) whereas power grids use Direct Current (DC).
In the light of the above statements, choose the correct answer from the options given below:
Answer: C. Statement I is true but Statement II is false — ConceptPhotovoltaic cells convert light into electrical energy as direct current. A grid-connected photovoltaic system uses an inverter to convert this direct…
- A.
Both Statement I and Statement II are true
- B.
Both Statement I and Statement II are false
- C.
Statement I is true but Statement II is false
- D.
Statement I is false but Statement II is true
Attempted by 1 students.
Show answer & explanation
Correct answer: C
Concept
Photovoltaic cells convert light into electrical energy as direct current. A grid-connected photovoltaic system uses an inverter to convert this direct current into alternating current synchronized with the power grid, allowing solar generation to supplement the grid supply.
Application
Statement I describes photovoltaic generation being used alongside electricity from the power grid. That is the operating purpose of a grid-connected photovoltaic system.
Statement II reverses the electrical forms: photovoltaic cells produce direct current, while ordinary power grids use alternating current; the inverter performs the DC-to-AC conversion.
Cross-check
A grid-tie inverter is required precisely because the module output and the grid waveform are different. This independently confirms the DC-to-AC path.
Therefore, Statement I is true and Statement II is false.