How many square meters of photovoltaic cells would be required to provide sufficient energy to light a 100 W light bulb? Photovoltaic cells are 15% efficient in converting 1000 W\m² of solar energy to electricity.

Question

Quizplus · Accepted Answer

To power a 100 W bulb, you need 100 W of electricity. With 15% efficiency, the cells convert 1000 W/m² to 150 W/m². Therefore, 100 W / 150 W/m² = 0.6667 m², which is approximately 6.6 × 10^−1 m².

How Many Square Meters of Photovoltaic Cells Would Be Required