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ELECTRICITY FROM WOOD-FIRED GASIFICATION IN UGANDA - A 250 AND 10KW CASE STUDY Thomas Buchholza, Izael Da Silvab, John FurtadoC 8Gund Institute for Ecological Economics, University of Vermont, Vermont, USA,
[email protected] bCentre of Excellence in Renewable Energy & Sustainable Development (CERESD), Strathmore University, Nairobi, Kenya CDepartment of Industrial Ecology, KTH Royal Institute of Technology, Stockholm, Sweden ABSTRACT Wood
gasification
systems
have
the
potential
to
contribute to the rural electrification in Sub-Saharan Africa.
This
economic
paper
analysis
presents
of
two
an
operational
wood-based
and
gasification
systems (250 and 10 kW) installed in Uganda in 2007. Both
systems
proved
their
potential
to
compete
economically with diesel generated electricity when operating close to the rated capacity. At an output of 150 kW running for �12 h/day and 8 kW running for �8h/day, the systems produced electricity at US$ 0.18 and 0.34/kWh, respectively. A stable electricity demand close to the rated capacity proved to be a challenge for both
systems.
Fuelwood
costs
accounted
for
level [5, 6]. Gasifiers running on air-dried wood (moisture content
