While there are plenty of solar-powered peripherals that plug into your laptop to boost its battery power, we haven’t yet seen a model that runs solely on solar. Industrial Designer Andrea Ponti‘s concept for the Luce Solar Panel Powered PC could become the greenest laptop ever made.
The computer has two solar panels: One on the back of the monitor and one underneath a touch keyboard. Ideally, the two panels would be able to power the computer continuously, though it’s unclear whether this has been successfully tested. Using a laptop in the sun is far more battery intensive than indoors since the screen brightness needs to be cranked up to compete with the sun’s bright light.
*tctechcrunch.files.wordpress.com/2011/06/luce-back.jpg
PS: Apart from this being a Solar Power Laptop, it's Looks are Stunning too!
Source: Could This Be The First Solar Powered Laptop?