A Multi-Criteria Assessment of Water Supply in Ugandan Refugee Settlements

Susanna Andreasi Bassi*, Iskandar Tange, Benjamin Mathias Ejlebæk Holm, Alessio Boldrin, Martin Rygaard

*Corresponding author for this work

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Abstract

Water supply challenges in emergency situations have increased in recent years and there is a need for analyses targeting economic and environmental sustainability. Our study investigated the end-user water demand, the capital and operational costs, the carbon footprint, the freshwater availability and the risks surrounding water quality for several groundwater supply alternatives in Ugandan refugee settlements. We compared hand pumps, motorised pumps (solar, diesel and hybrid) and water trucking. The end-users’ survey highlighted the significant variability of water access. The economic evaluation showed that the breakeven year for solar and diesel pumps was greatly affected by the length of the water distribution systems (e.g., pipes, storage tanks), the chosen timeframe and the daily working hours of the diesel engine. When excluding capital investment, most alternatives were economically viable at the existing water fee (0.8 USD/m3), and solar driven pumps were down to 0.09 USD/m3. Finally, the combustion of diesel caused the highest CO2-eq emissions per m3. Water trucking is the worst option in both the economic and environmental analysis at 7–8 USD/m3 and >1 kg CO2-eq/m3. The methodology and the results of this paper will support decision-makers to build and finance sustainable water provision solutions in refugee settlements.
Original languageEnglish
Article number1493
JournalWater
Volume10
Issue number10
Number of pages19
ISSN2073-4441
DOIs
Publication statusPublished - 2018

Keywords

  • humanitarian emergencies
  • solar pumps
  • water pumps
  • cost-benefit analysis
  • carbon footprint
  • sustainability assessment
  • Hydraulic engineering

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