Solar panels have gotten so cheap that installers are seeking new ways to push down the cost per clean kilowatt. One answer: Get rid of the humans !
Behind a high fence in Menlo Park, Calif. a gray, tuna-shaped robot glides on a monorail around 20 solar panel arrays attached to steel poles, like WALL-E on a Disneyland ride. The Solbot, made by startup QBotix, stops at each array and extends a cylindrical arm to adjust the angle of the photovoltaic panels so they capture the most amount of sun as it moves across the sky and through the seasons.
Via Pol Bacquet