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This new book, the fourth volume in the Innovations and Challenges in Micro Irrigation book series, examines the potential of solar energy and other emerging energy technologies in micro irrigation to create sustainable energy sources. The authors discuss a variety of innovative micro irrigation system designs, with a special focus on solar energy and photovoltaic (PV) energy.
This case study describes the community of a small village called Ingotse in Kakamega county in western Kenya. Like most rural, food-insecure communities in sub-Saharan Africa, Ingotse village relied on rain-fed agriculture for production of staple crops. Farmers in this village raised some funds to sink a borehole. This was done in collaboration with a non-governmental organisation (NGO) known as Water for All which gave the community a solar-powered pump to distribute the water to the homesteads. Water from the borehole was used for irrigation, providing food crops all year round. Women and children no longer had to walk long distances to the river to fetch water; they had extra time in their day for other activities such as doing homework with children.
The report gives a state-of-the-art overview of policies, regulations and incentives for the sustainable use of solar-powered irrigation technologies (SPIS) around the world. SPIS offer a viable, low-tech energy solution for irrigated agriculture, providing a reliable source of energy in remote areas, contributing to rural electrification, reducing energy costs for irrigation and enabling low emission agriculture. Nevertheless, SPIS have a significant initial investment cost and require innovative financing models to overcome this barrier to adoption, especially for small-scale farmers. Technical knowledge and service infrastructure is needed to ensure that the systems run effectively. Moreover, SPIS – if not adequately managed - bear the risk of fostering unsustainable water use as lower energy costs may lead to over-abstraction of groundwater. This report looks at how different countries work to create an enabling environment for SPIS technologies, while managing the risks that come with it.