It was also an exciting week for energy storage tech as New York prepared to power up the world's first grid-scale flywheel energy plant and researchers cracked the code on a new cryogenic energy storage system. We also showcased a plan for a ribbon-like solar field that unfurls over the desert and saw researchers unveil a transparent solar spray that can transform practically any surface into a sun-capturing source of energy.
In other news, solar tech energized the arena of interior lighting as we showcased an adorable solar-powered table lamp and were dazzled by this set of folding OLED origami lights. Finally, a team of scientists blew our minds with this light-bending invisibility cloak made from gold-coated silk.