Could we use our body heat to generate electricity?

12 February 2012

Question

Could we use TEGs to generate electricity from human body heat?

Answer

Andrew - Yes, that is quite possible. Humans are 30-35 degrees C versus the ambient temperature of maybe 20-25 degrees C. A small temperature difference is sufficient to generate a small amount of power and electronics are getting more and more efficient; we are now down at microwatt level for various things. So yes, you could quite feasibly have human powered electronics using TEGs as the mechanisms for that power.

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