1,301 views

4:38

Watch
- Search Videos
  
  Advanced search »
- Submit a New Video
Discuss
About
- Try clicking on the various channels to see videos posted to that channel - if you're into music you can click the Music channel to get more music sifts - go on and explore! Use the "hotness" when you have opened the channel link to get videos that have gotten a lot of votes, or use "newness" to have a look at the new sifts.
  When browsing sifts you like, have a look at the Related Posts list to see other related videos, click the tags under the video title to see more sifts tagged with the same tags or have a look at other sifts from the same user in the More Posts By list. If the sifted video is in a play list, have a look at the play list to see other interesting videos the Sift users have linked together.
  Enter the Sift Lounge to chat with online sifters about anything and everything, or read interesting posts in the Sift Talk forum.
  The Top New Videos list is always full of interesting, current videos. It is always recommended that you have a look through the Top New Videos, but also have a look at these:
  - Upcoming Unsifted Videos - active video submissions that neither are published to the front page nor archived to the submitter's personal queue
- Have you seen a really funny, surprising, scary, interesting, cute or in any other way extra good quality video?
  Post and share it here - VideoSift is the best video aggregator on the Web, where we share, discuss, promote, and interact with the best videos out there on the web. Post it here, and share it with the large community of video-interested users. And - you are guaranteed to find more very good videos here already!
  Mind you, we only share videos you discover that someone else has made; if you "self link," by posting a video you have made, have posted or have interests in, you risk the ban hammer - read the posting guidelines before posting. The sift is NOT for promoting your own videos - it is for sharing videos others have made.
  Submit a Video Now »
Login

Kite Gen Stem: Green energy from kites

submitted by smiley

1 decade 1 year 11 months ago

From kitegen.com:
A 3 MW KiteGen generator
In the “Stem” configuration the wing pull the cables that, through a pulley system, activate the alternators on ground, which in turn produce electricity. When cables are entirely unwound, the wing is guided to a position where it looses its wind resistance and the cables are wound in. Energy consumption of the winding phase is a minor fraction of the energy generated during the unwinding phase.

At the very core of the project is the software that autonomously pilots the power kites, so that the flight patterns can be controlled and normally directed to maximise the production of energy.

In 2006 KiteGen Research has built a first prototype, codenamed KSU1, tested at an altitude of 800m with the authorization of ENAC and ENAV (Italian Civil Aviation Authorities).

Beyond the verification of the theoretical data, the KSU has produced energy, thanks to the unwind/rewind cycle: 5kW average and 40kW peak, with a ground of 4.5 m/s.

The first operative Stem is located in Sommariva Perno (CN), its construction started in 2010 while now (Feb 2012) it is completed in all its components and it is under testing and optimization phase.