fastcoexist.com - More than 1 billion people around the world don’t have electricity, and even more don’t have access to reliable electricity; when they flip a switch, it may or may not work. While dozens of startups are working on new sources of cheap off-grid energy--from solar panels to gravity-powered lights--one of the challenges that remains is storing electricity so it can be used later. Juice Box , from the Seattle-based design firm Artefact , might be one answer to that problem:
