Solar PV water pumping study - FINAL REPORT ... - UNDP, Namibia

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Feasibility Assessment for the Replacement of Diesel Pumps with Solar Pumps FINAL REPORT: September 2006 3.2.3.2 Summary breakeven analysis ................................................................................................. 32 3.2.3.3 Comparison to previous work .................................................................................................. 35 3.2.4 Unit water cost ............................................................................................ 36 3.2.5 Sensitivity analysis....................................................................................... 39 3.2.5.1 Discount rate ........................................................................................................................... 39 4 Facilitation of PV Pumping........................................................................................ 41 4.1 High Level Market Potential Assessment ........................................................................41 4.2 Financing....................................................................................................................43 4.3 Measures for theft prevention.......................................................................................44 4.4 Dissemination of latest information ...............................................................................45 4.5 Greenhouse Gas reduction ...........................................................................................46 5 Conclusion .............................................................................................................. 47 6 Recommendation..................................................................................................... 50 7 References.............................................................................................................. 52 Annexure....................................................................................................................... 53 A1 Stakeholders........................................................................................................ 53 A2 Cost modelling inputs ........................................................................................... 54 A3 Workshop proceedings ......................................................................................... 69 A4 Terms of Reference.............................................................................................. 73 Page iii
Feasibility Assessment for the Replacement of Diesel Pumps with Solar Pumps List of Tables FINAL REPORT: September 2006 Table 2.1: PVP performance overview ................................................................................... 6 Table 2.2: PVP uptake during 2001 to 2005......................................................................... 12 Table 2.3: Technology use at DRWS administered water points ......................................... 13 Table 3.1: Operating heads for pumping comparison........................................................... 17 Table 3.2: Transport rates .................................................................................................... 19 Table 3.3: Replacement schedule for PVPs ......................................................................... 21 Table 3.4: Maintenance and replacement intervals for diesel engines: DRWS and Private installations..................................................................................................................... 21 Table 3.5: Maintenance costs of diesel engines................................................................... 22 Table 3.6: Financial parameters for the life cycle costing..................................................... 22 Table 3.7: Reference case parameters ................................................................................ 24 Table 3.8: Years to breakeven for PVP vs. DP over the operating range ............................ 32 Table 3.9: Unit water cost for PVPs...................................................................................... 37 Table 3.10: Unit water costs for DPs .................................................................................... 37 Table 3.11: Sensitivity values for transport distances........................................................... 40 Table 4.1: Number of recorded boreholes in Namibia .......................................................... 41 Table 4.2: Potential number of boreholes suitable for PVP .................................................. 43 Table 4.3: GHG reduction potential ...................................................................................... 46 Page iv
Page 1 and 2: MINISTRY OF MINES AND ENERGY BARRIE
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Solar PV water pumping study - FINAL REPORT ... - UNDP, Namibia

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