"Nespresso Battery" places disposed espresso capsules, coffee grounds, salt water, and copper strips in little pots-and uses them to power clocks.
The "Nespresso Battery" places disposed espresso capsules, coffee grounds, salt water, and copper strips in little pots, and turns them into batteries. Each collection of six pots powers a small clock. The entire installation runs a small stereo.
Dezeen (where you can find more photos like these) reports that it was one of three winning entries in the Vienna Design Week's Sustain.Ability.Design competition.