Do you have stacks of old computer equipment gathering dust ? Now you
can put some
of it to use! This guide shows you how to use PC fans as mini
wind generators for recharging solar lights and ni-cads.
This is a solar tracker that I built using some small calculator solar
panels, an old hard drive and a few relays. There are some silicone
diodes in the motor controller, but other than that it's free of
This is a small DIY system intended for backup lighting and chraging of
small device such as phones/laptops etc.
The total rated power is 26W of solar, the inverter is built to handle
150W of power. Read more