Finding Potential Sites for Small-Scale Hydro Power in Uganda: a ...

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elinquish because of too expensive connection fees. Despite access to traditional energysources all interviewees agreed that there is a great need for electricity. Further, theinterview results demonstrate that access to electricity would lead to the usage of modernenergy service s, such as lighting, domestic duties and entertainment. Figure 5.3 shows indetail what the interviewees would like to use electricity for.Figure 5.3 Desired Energy Services if access to electricity.The most obvious disadvantage with electricity for the interviewees seemed to be theanxiety for accidents in form of electrocution, shortcuts and fire. Only a few wereanxious not to be able to pay for their electricity usage, because of the uncertainty inincome, while the remainder saw no negative effects at all.When implementing small-scale hydropower projects a basic condition is that the majorpart of the cost is covered by subsidies and contributions from the Government, NGOsand aid-organizations. Remaining costs must be covered by the consumer’s own liquidassets. 83% of the interviewees consider themselves to have some means to pay forelectricity and they are more than willing to pay more for electricity than they do for theircurrent energy sources.Another basic condition in order to attain a sustainable and economically viable smallscalehydropower project is non-profit participation and commitment by the consumers.95% of the interviewees were positive to the thought of, without any kind ofcompensation, continually maintain and handle service of a possible future powerstation. Our experience, from visited parts of our study area, is that all land is cultivatedand belongs to someone, which means that a certain degree of land sacrifice is necessary48
when constructing a small-scale hydropower station. The majority would be happy tosacrifice a part of their property in order to get electricity, while 5% says that such asacrifice would bring a too high loss in harvest income generation.5.2 GIS Analysis5.2.1 InterpolationThe interpolation turned out to be a rather time consuming operation when working ona laptop computer. An interpolation of the study area with 100-meter resolution neededapproximately 5 minutes to complete, the 30-meter resolution 30 minutes, while the 10-meter resolution interpolation needed almost 4 hours.The output from all three interpolations contained a large amount of sinks. As can beseen in Figure 5.4 the majority of sinks were concentrated to areas of low slope angle,e.g. valley bottoms or areas between contours of same elevation. The areas oftencoincide with areas containing rivers.Figure 5.4 Original contours (brown lines) and sinks (blackdots).The sinks have no significant influence on our analysis, since their locations in theinterpolated DEMs often are in irrelevant areas, such as valley bottoms. Despite this, weperformed a fill sink-function, which removed all existing sinks, in order to receive amore accurate DEM.49
Page 1:
Seminar series nr 121Finding Potent
Page 5:
AbstractOver 2 billion people, most
Page 9: AcknowledgmentsFirst of all, we wou
Page 12 and 13: 5 Result ..........................
Page 14 and 15: For the specific case of Uganda, a
Page 17 and 18: 2 Study AreaThe main reason for us
Page 19 and 20: In the 1960’s Uganda was one of t
Page 21 and 22: 2.1.3 TopographyMost of Uganda is s
Page 23: Figure 2.4 The highest volcano in K
Page 26 and 27: e able to manually write the data,
Page 28 and 29: Depending on the appearance of the
Page 30 and 31: o Then the water flows from the for
Page 32 and 33: and generator is 65% and 80% effici
Page 34 and 35: Table 3.2 Capacity and production o
Page 36 and 37: Table 3.5 Small-scale hydropower ca
Page 38 and 39: technology was supplied to an area
Page 40 and 41: component to all of these issues, g
Page 42 and 43: The Rural Electrification project t
Page 44 and 45: The closer the interviewer is to th
Page 46 and 47: Over this area we bought the follow
Page 48 and 49: The primary erosive force determini
Page 50 and 51: There are a set of tolerances used
Page 52 and 53: ivers are seasonal, since the hydro
Page 54 and 55: (a) (b) (c)Figure 4.8 An example sh
Page 56 and 57: 4.2.6 Post Processing of Output Dat
Page 58 and 59: A = ( b ⋅ h)2(4.3)Where A equals
Page 62 and 63: The first step when performing the
Page 64 and 65: more obvious in their geographic co
Page 66 and 67: By using a smaller area it is possi
Page 68 and 69: 5.3 Summary of Resultso The general
Page 70 and 71: projects are supposed to be finance
Page 72 and 73: Sinks are a reoccurring problem whe
Page 74 and 75: UTM Zone 36N projection. The study
Page 76 and 77: As described in chapter 3.3.3 all r
Page 78 and 79: and if good financing possibilities
Page 80 and 81: Hutchinson M. F., Dowling T. I., 19
Page 83 and 84: 9 Appendix9.1 Interview: Rural Elec
Page 85 and 86: 9.3 Digital DataAll data layers are
Page 87 and 88: Frame creationThis is made in order
Page 89 and 90: time2=clock;%starts timer on clock
Page 91 and 92: next(1,2)=(y-1);cell_height=(highes
Page 93 and 94: endendif height>=20;%if the accumul
Page 95: Site 16 (147486,78619)Site 20 (1560
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