Zephy Flies For 80+ Hours Nonstop

August 20, 2008 by Chris
We previously covered the Zephyr Solar Powered UAV on PyroElectro and it's back already. Just this sunday the UAV flew nonstop for 83 hours and 37 minutes. It used rechargeable batteries for flight during the night. Both articles are linked below.


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Solar Powered UAV

August 10, 2008 by Chris
This is probably one of the more interesting projects I've seen in a while, at least conceptually. A solar powered UAV seems at some level a no-brainer especially if it could fly high enough over the clouds & fast enough to always be in sun-light. The engineering behind it however is very complex. The project website has all the details you'd ever want!


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Solar Power: Wind Turbines

July 16, 2008 by Chris
The drive for renewable energy sources has been a heated issue lately. Here is a wind turbine project write-up that details out the process of using wind for generating electricity. The write-up is thorough and concise (but could use a few more pictures of the build process).


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DIY Solar Battery Charger

April 5, 2008 by Chris
This project is a very basic battery charger using solar energy to do it! The best thing about it is that it uses standard house-hold parts and the design is easy to put together.




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