Question

Question 3

1 pts
• A solar panel absorbs 6,771 J of radiant energy, and produces 3,291 ) of
electrical energy. What is it's percent efficiency?
(make sure you multiply x100 to get a % between 0 and 100)

Answer 1

9514 1404 393

Answer:

48.6%

Explanation:

Efficiency of energy conversion is the quotient of output energy and input energy.

(3291 J)/(6771 J) × 100% ≈ 48.6%

The solar panel's conversion efficiency is about 48.6%.

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Additional comment

With current (2021) technology, the best efficiency one can expect from a solar panel is in the neighborhood of 23%.