While the costs for solarizing water points are normally higher as opposed to other technologies such as diesel pumping systems, it has been established that adoption of solar energy systems for pumping water translates to higher savings with time.

This document try to establish whether, when adding Storage (Li-Ion high voltage batteries) to existing solar pumping systems, the financial rational is still strong when compared to equivalent diesel options.

To this end, 2 pilots are studied. Both of them were existing stand alone solar pumping systems in Kenya and Zimbabwe that were retrofitted with high voltage Li-Ion batteries and an inverter during 2024.