PV Modules 21.5% Efficient

I often get the question, “how efficient are solar modules?”.   A decade and a half ago, if one was doing back of the envelope calculations, they would make the assumption of 10% efficiency as that was a pretty typical industry average, at least within a rounding error.

SunPower Modules cmpThe 10% assumption stuck around long after it had been surpassed because it was such an easy number to work with.  However progress marched on and today the people typically use 15%.   While polycrystaline modules dominate leading to the weighted average of all modules sold to be closer to 15%, the trend towards improvement continues with several companies at or near 20%.

SunPower, the current leader offers a glimpse of what the future holds.  Last year they introduced a module with 21 1/2% efficiency.


This entry was posted in Exciting Technology Breakthroughs, Industry Growth, Path to a New Paradigm and tagged , , , . Bookmark the permalink.

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