Dear Stovers, Michael Blunck from GTZ asked me to share the following
with you, which might be of interest also for the stove list. For
inquiries please contact him directly (see CC). Regards Christa
Paper series: Small-scale Electricity Generation from Biomass
GTZ-HERA has looked more closely into the small-scale use of biomass
for rural off-grid electrification. Results are disillusioning.
Following the hype and frustrations over a global bio-fuel market,
expectations regarding biomass now focus on local power generation in
rural areas of developing countries. International organisations and
donors advocate wood gasification, biogas, and vegetable oil as
sustainable sources for decentralized power supply. Countless success
stories on biomass use for small-scale electricity generation have
been published.
However, in practice the picture seems to be a different one: many
rumours indicate that the actual successes are not as numerous as the
stories surrounding them. As a governmental development agency, GTZ is
obliged to advocate only promising and sustainable approaches. Hence
the GTZ Programme on Poverty-oriented Basic Energy Services (HERA) has
conducted several inquiries with experts in Africa, Latin America and
Asia focussing on practical operation experience with small-scale
gasification, as well as the use of biogas and vegetable oil for power
generation. Following the analysis of literature and in particular
many direct inquiries with local experts , the survey not only
revealed an abundant number of projects but an equally multitude of
problems and obstacles.
The assessment resulted in a three-part series of papers on "Small-
scale Electricity Generation from Biomass" covering biomass
gasification (part I), biogas (part II), and plant oil (part III) for
electric power generation. The documents are now available for download:
Small-scale Electricity Generation from Biomass
Part 1 - Biomass Gasification
http://www.gtz.de/de/dokumente/gtz2010-en-small-scale-electricity-generation
-from-biomass-part-I.pdf
Part 2 - Biogas
http://www.gtz.de/de/dokumente/gtz2010-en-small-scale-electricity-generation
-from-biomass-part-2.pdf
Part 3 of the paper series which will cover plant oil for power
generation will be available by the end of this year.
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