Comments for Sustainable Design Update

Comment on Green Battery Design by louis

louis — Tue, 17 Jan 2012 22:27:26 +0000

I am very interested in your battery cook book for nickel iron batteries.
Would you please contact me and let me know the progress on this project? It is extremely important to me.
Thank you for your work and generosity.
Peace,
–Louis
Liberty, TN

Comment on Cheap Plentiful Solar Electricity by SolarUniverseCal

SolarUniverseCal — Sat, 14 Jan 2012 00:37:35 +0000

Solar power is really the only way to go. We all need to do our part to spread the word. It’s just about getting the word out that solar and going green takes “just about the same effort”.

Comment on 10 Futuristic Green Cars by K.C.M.

K.C.M. — Fri, 13 Jan 2012 15:13:34 +0000

I love this cars, and other designs of yours. I am designing a CO2 car for a tech class, and I am basing it off of yiours

Comment on The Biogas Bible by Glenn Muller

Glenn Muller — Mon, 09 Jan 2012 18:30:48 +0000

how to I get hold of David Houses’s book on Biogas

Comment on First LEDs now Electron Stimulated Luminescence? At only $14.98. by John

John — Mon, 12 Dec 2011 20:20:57 +0000

Hi Rob-

I like your math. No arguments. ESL lights are in their infancy and this is just a “heads up” to our readers.

At the Appropriate Technology Collaborative we are getting raw LEDs (not in fixtures) for 80 cents for a one watt LED (EBAY). The LEDs are rated for about 110 lumens which is very good. We are now in business setting up light manufacturing in developing countries where raw LEDs and circuit boards are soldered up and combined with a very inexpensive jar (glass, like a Ball jar) we make our own light bulbs. The cost of labor – and we make sure people make a living wage – is still pretty low so our cost per “light bulb” is now very low. The ESL is not configured well to compete with this application.

Check Out: http://apptechdesign.org/design-and-prototype-of-solar-replacement-for-kerosene-lamps/

Comment on Solar Vaccine Refrigerator – Please Vote! by John

John — Mon, 12 Dec 2011 20:09:26 +0000

Hi Bonnie-

Yes, we have the drawings available online at http://www.apptechdesign.org and they have been downloaded over 1,000 times. We have people in Pune India, Paupau New Guinea and other parts of the world making our refrigerators!

Thanks for the interest. In the near future we hope to update our design to make it easier to build and cheaper too.