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The technologiesBiogasBiomass briquettesBiomass gasificationLow energy buildingsMicro-hydroSolar: grid connectedSolar: home/lanternsSolar: thermalWater pumpsWindWood stoves
EventsAshden 2013 conferenceAshden 2012 conferenceRetrofit Masterclass 2012Ashden 2011 conferenceAshden 2010 conference
SchoolsIntroductionActivitiesFilmsTaking actionSchools resource survey
Low-cost treadle pumps for irrigation
Bhikram Singh aged 78 operates a treadle pump in Uttar Pradesh.
There are photos and our 2006 film of the work of IDEI on this page, but please go to its 2009 entry for all other details.