Lack of electricity is a serious problem for vaccines and medicines that need to be cooled. It is hard to imagine that this is a problem, living in the USA, but this is still a problem today. As readers of this blog notice I really like appropriate technology solutions that provide real quality of life enhancements for hundreds of millions of people (which undoubtedly is influence by my father).
Related: Cooling with Clay Pots, Sand and Water – appropriate technology posts – Water and Electricity for All – Inspirational Engineer – Technology, Entertainment, Design (TED) posts (great webcasts)
Even i admire appropriate technology methods pedal power.Producing heat energy from rice husk would also be an ideal solution.So i think this would be an ideal method to conserve electricity and refrigeration can be made possible using one such above mentioned methods.