Are Solar Irrigation Pumps next in line for promoting efficient groundwater and energy use ?

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Solar-powered irrigation pumps are increasingly seen as an important alternative to address energy-groundwater nexus in developing world. As a result, huge subisidy is being provided in countries such as India for their adoption. However there are issues related to technical feasibility and economic viability of such option. Further, in absence of effective institutions and instruments (including water rights and energy pricing) to regulate groundwater abstraction, it seems the approach may do little to either reduce groundwater or energy use. I request group members to share there thoughts/experience on the same by providing examples from their own region.