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Takeaway: How do we know how good a solar cell is?

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Takeaway: How do we know how good a solar cell is?

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How much power does a solar panel produce?

How much power does a solar panel produce?

Answering that question is surprisingly difficult

Solar energy production depends on the sunlight characteristics

The sunlight varies depending on time of day and geographic location

To solve this problem, engineers have come up with a common standard

They meet regularly to adjust their instruments at the same location

That’s how they know how good solar panels really are