The green shade of the notebook is a symbol of its ‘green’ capabilities. There is no requiring for you to charge the notebook as it uses hydrogen generated by electrolysis of water as its energy resource.

The Plantbook when rolled back into its cylindrical form gets placed inside a beaker full of water to soak it, thus generating hydrogen via the process of electrolysis and releasing oxygen. The energy necessary for electrolysis is provided by a solar heat plate that is affixed at the top of the device. Much like a plant, the Plantbook produces energy releases oxygen.

The designers give details, “The system uses an external water tank; therefore the Plantbook incessantly absorbs water when soaking it in water and generates electrolysis using power stored in a solar heat plate installed on the top. In this procedure, it is operated using hydrogen as energy source and discharges oxygen. If you put it into a water bottle while you don’t use the laptop, it mechanically charges a battery and discharges oxygen. A leaf-shaped strap hanging on the top is made with silicon. It plays a role of a hand ring and a green LED indicates when the battery is charged. Using this LED, users can check how much spare capacity the batter has.”