water to the relevant place of extraction. Further details on the approach are available in Appendix B.5. Table 23 gives an overview of the nationwide average size requirements for water pumps and solar systems, as well as daily electricity consumption by type of pumping station; note that there are significant size variances across each type of pumping station. Table : Average pump size, electricity consumption, and solar system size by pumping station Business case We first assess the annualized cost of different energy sources to power the pumping stations; the outcome of this analysis, on Region-level average, is shown below in Table 24. Table : Overview of annualized costs of different power alternatives for pumping stations While we show the business case for solar as compared to diesel-generators and grid power, consultations have revealed that the vast majority of PC, FPMH, PEA, SPP, and Mini-AEPs are in off-grid areas, leaving only hand pumping or generator-powered pumping as alternatives. In contrast, the AEPs are the urban water providers, and based on our understanding, all grid- Based on the power needs of the water stations, we find a positive business case for all pumping stations from using solar rather than diesel powered generators. The analysis also reveals that there is frequently a business case for using solar over the grid for large pumping stations of 8 kW and above. Our analysis is purely based on direct equipment cost, including replacement components, but does not account for additional operating expenses that would be incurred to manage large scale solar production facilities. In addition, such solar production sites would require vast land areas, which are not always available in direct proximity to water stations, especially for AEPs in urban locations. A breakdown of the business case by type of water station and region is provided in Table 25. Table : Annualized cost savings of switching to solar power for water pumping stations Variations in the percentage of average annualized cost savings are, to some extent, also driven by the modelling approach, i.e. marginal increases in power needs lead to a significant jump in investment levels for solar technology as larger system sizes are required.
water to the relevant place of extraction. Further details on the approach are available in Appendix B.5. Table 23 gives an overview of the nationwide average size requirements for water pumps and solar systems, as well as daily electricity consumption by type of pumping station; note that there are significant size variances across each type of pumping station. Table : Average pump size, electricity consumption, and solar system size by pumping station Business case We first assess the annualized cost of different energy sources to power the pumping stations; the outcome of this analysis, on Region-level average, is shown below in Table 24. Table : Overview of annualized costs of different power alternatives for pumping stations While we show the business case for solar as compared to diesel-generators and grid power, consultations have revealed that the vast majority of PC, FPMH, PEA, SPP, and Mini-AEPs are in off-grid areas, leaving only hand pumping or generator-powered pumping as alternatives. In contrast, the AEPs are the urban water providers, and based on our understanding, all Based on the power needs of the water stations, we find a positive business case for all pumping stations from using solar rather than diesel powered generators. The analysis also reveals that there is frequently a business case for using solar over the grid for large pumping stations of 8 kW and above. Our analysis is purely based on direct equipment cost, including replacement components, but does not account for additional operating expenses that would be incurred to manage large scale solar production facilities. In addition, such solar production sites would require vast land areas, which are not always available in direct proximity to water stations, especially for AEPs in urban locations. A breakdown of the business case by type of water station and region is provided in Table 25. Table : Annualized cost savings of switching to solar power for water pumping stations Variations in the percentage of average annualized cost savings are, to some extent, also driven by the modelling approach, i.e. marginal increases in power needs lead to a significant jump in investment levels for solar technology as larger system sizes are required. grid-
Niger-Off-grid-solar-market-assessment.docx