Economic assessment of converting a pressurised water distribution network into an off-grid system supplied with solar photovoltaic energy

Abstract Converting a water pressurised distribution network into an off-grid pumping station supplied by solar photovoltaics represents challenge for utility managers, user demand assessments evaluate the energy generated in solar-powered systems to establish consumption. This work includes quantifying potential investments and economic savings that could be achieved, as well payback period which results indicator of suitability adapting power supply utilising panels. A tool (UAsolar) aid practitioners has been developed, it requires calibrated hydraulic model account requirements delivery process networks. The authors encourage students, professionals, decision-makers use this identify efficiency gains (e.g., schedule, reduction use) synchronise production Users can get with low computational time using software on six Practitioners should note irrigation networks have sized installations few photovoltaic modules, while urban show larger are required. In addition, managers match changing consumption over time, reduce quantity modules required remove need storage. ranges from 6.08 13 years cases where investment is recovered—(values yields high return lifetime PV 25 years). However, one municipality among those studied shows some scenarios not viable convert standalone system. Graphical abstract