[kbenson]

Maybe that "unwarranted amount of attention" is because it has a different set of requirement for use than solar which makes it particularly attractive. Considering only the energy efficiency and not how it could or would actually be used by the target consumers seems shortsighted to me. It may yield a the most efficient product, but it may not yield the most effective product.

[ris]

Yeah, sure, but that set of requirements is, I'd argue anyway, probably more appropriately served by something clockwork or something crank-based that charges a battery.