Appropriate tech in Guatemala: AIDG biodigester

Custom PCB design
Custom PCB design at AIDG

This past winter, I spent a month in Guatemala studying Spanish, checking out appropriate technology projects, and zipping around the geologically manic country around the Western Highlands. Here’s a reportback from a visit to the offices of the Appropriate Infrastructure Development Group (AIDG). I got to check out some prototype wind and solar designs and take a peek at their new kit-built CNC machine and custom circuit board designs.  Later, I got to poke around the office and come along on a site visit to a biodigestor installation they did outside of the city.  It lets the farmers nearby turn animal waste into organic fertilizer and cooking gas while reducing greenhouse emissions.  I got to hear about the combination of technical and user friendliness challenges they encountered and saw how the system is working now that it’s been tweaked a few times.  Pretty cool stuff.

Read more, o pedir esta historia en Español

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