Detail of the innovative solar panel made with human hair developed by eighteen year old science student Milan Karki. The handmade solar-hair panel is believed to be the first of its kind using human hair as a cheap alternative to silicon in modern solar panels. The solar-hair panel is estimated to be four times cheaper than an industrial made solar panel of comparable capacity. The inventor, Milan Karki, an eighteen year old science student, grew up in a small village too remote to be connected to the Nepalese electricity grid.