The climate crisis has caused 9.2 million people in southern Africa to be seriously food insecure. Food insecurity statistics include nine countries in the region: Angola, Kingdom of Swaziland, Lesotho, Namibia, Malawi, Madagascar, Mozambique, Zambia, and Zimbabwe. This peak is expected to increase to 12 million during the off-peak season from October this year to March next year. Factors such as floods, droughts and economic downturns have led to a rapid increase in the number of hungry people. In Zambia, it is expected that 2.3 million people will be seriously deprived of food during this period.
The solar submersible irrigation system is a good solution for Zambian food problems. The solar submersible irrigation system consists of a DC submersible pump, a solar controller, and a solar photovoltaic panel. The solar submersible irrigation system is a green energy system that uses renewable energy solar-powered water pumps to pump water from deep wells for irrigation and drinking water. In Africa, such as Zambia, solar energy resources are very rich and suitable for the promotion of solar energy systems. The system has the advantages of low operating cost, simple maintenance, energy-saving and environmental protection, and no pollution.