The Solar Tree
The Solar Tree designed by Gurdeep Sandhu, it uses just a small space in your backyard, it can wing-out the panels to absorb sunlight and fold back when not used. You can uproot and move it, or even upgrade the panels when needed.
Solar-Powered Speedboat
Czeers MK1 is the world’s first solar-powered speedboat, this 10-meters speedboat can go about 30 knots (about 55 Km/H) with powered from 14 square meters solar cells. No price announced yet, but with something looks like carbon fiber, it would cost a lot.
Source: Czeers