Monthly Archives: July 2009

Thank you to all who gave very helpful leads on this topic.  I came across some more examples of the difficulties of running solar powered units while in India recently, though to be fair this was a procurement / maintenance issue more than the technology itself, which is of course sound. Also, gas/kerosene is apparently [...]

I visited some hospitals and a birthing clinics without water or electricity in Tanzania some years ago.  And found them giving vaccinations shots at the birthing clinic and immediately wondered how they
refrigerated the vaccines.  Easy.  Small propane refrigerator.
Heck we have them in RV’s here in this country.
George Johnston

Dear Andrew:

In Brazil (a not so less developed country that still has less developed
areas), the solar powered units worked well and was considered practical and
appropriate. Obviously, the challenge is when these units need repair, due
to the lack of local expertise.

Another type of refrigerator/freezer that worked well is the one that uses
propane gas tanks. [...]