Sure, it would be great if all our homes were juiced via solar panels, but since a lot of us rent and we can only demand so much from our landlords, we have to make do with what we've got. One way to keep your electrical use to a minimum is to buy energy efficient gadgets and appliances, and you can't get more energy efficient than with a gizmo with its own solar panels...




This would need a very long time in the sun to store enough energy (in a battery) to make a single cup of coffee-- espresso machines typically use >1KW of power when heating. A solar panel of that size would likely only produce 1 or 2 watts.
It would be great if all designers had friendly neighborhood engineers to consult with about ideas like this-- this is science fiction.
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