例如，一款在售的可折叠太阳能电池板，尺寸约12平方英尺，产生62瓦峰值功率。

For example, one commercially available foldable solar panel measures about 12 square feet and produces 62 watts of peak power.

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为了降低费用，人们一直在探索在保证采光量的情况下，减少太阳能电池板的尺寸。

To keep the expense down, people have been searching for ways to minimise the size of solar panels relative to the amount of light they can harvest.

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