Solar Cell Efficiency

Janet Said:

If the cell is running at 25% efficiency, how much energy will be produced in one minute? ?

We Answered:

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Sean Said:

Solar cell has light-gathering area 10cm^2 & produces .20A at .80V (dc). sunlite 1000W/m^2. What's efficiency?

We Answered:

W = VI = 0.8 x 0.2 = 0.16 W
Energy gather per area = E'/A = 0.16W / 10 cm² = 0.16 W / 0.001m² = 160 W/m²
Efficiency is then: E' / E = 160/1000 = 16%


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