Portable Vertical Wind Turbine Fits in a Backpack
For portable power, there are a bunch of options for small solar chargers, which can allow you to charge your mobile devices with the sun’s energy, but there aren’t too many options when it comes to using the wind to produce energy on a small scale. There is one small 15W vertical wind turbine, called Trinity, which is in the midst of a successful crowdfunding campaign, and appears that another, more powerful, version of a portable vertical wind turbine has…