In the last decade, solar energy has experienced a rapid growth, which brings both environmental and economic both reducing the system cost and increasing the grid-integration performance. Similarly, solar-powered water pumping technologies are increasingly in demand in developing countries as they provide cost-effective solutions to increase agricultural productivity. In many countries, there is still no electricity grid extension in rural areas, and in the absence of a reliable electricity supply, farmers have to resort to diesel-based pumping irrigation systems. These systems create high operating costs, often experience service gaps, contribute to greenhouse gas emissions and to the energy import bill in countries that do not produce such fuels. Therefore, renewable energy options, particularly solar power, are a promising solution for sustainable agriculture in regions with high-solar-insolation. In principle, the operation of solar water pumping systems is limited to peak sunshine hours which has a high impact on the sustainability of water resources, i.e. groundwater aquifers and surface water. The solar photovoltaic (PV) system generates clean energy and eliminates the risk of environmental pollution in the form of oil spills, contaminated soil and carbon dioxide emissions. In fact, the generated energy can be utilized low maintenance costs and requirements compared to diesel-operated pumps. Solar systems have comparatively high initial costs, but thanks to subsidies available in some countries and cost-sharing arrangements by the governments for agricultural purposes, it represents now a viable option in different contexts compared to other solutions. Operation and maintenance of the solar PV pumping system is a technical job that requires specialized knowledge and information to keep the system in working condition and sustainable and in working conditions. For this purpose, this sourcebook is designed to provide information on the design, operation, inspection, troubleshooting, and maintenance of solar PV pumping systems. PV pumping systems include mounting structures, photovoltaic modules, combiner boxes, the balance of system components such as the variable frequency drive, inverter, switch boards, solar pumps, distribution boards, and associated wiring. It is assumed that the reader of this sourcebook is knowledgeable in solar system basics and has previous experience with solar energy use in general. Operation and maintenance of the solar PV pumping system is a technical job that requires specialized knowledge and information to keep the system in working conditions. For this purpose, this sourcebook is designed to provide information on the design, operation, inspection, troubleshooting, and maintenance of solar PV pumping systems. PV pumping systems include mouting structures, photovoltaic modules, combiner boxes, the balance of system components such as the variable frequency drive, inverter, switch boards, solar pumps, distribution boards, and associated wiring. It is assumed that the reader of this sourcebook is knowledgeable in solar system basics and has previous expericence with solar energy use in general.