There are two types of solar panel kits available for purchase today. Grid-tied kits designed to provide power into the normal electrical grid from your home and off-grid kits designed to charge up battery bank.
[pdf] Independent power producer, Africa REN, has commissioned a 20MW of solar PV power plant with a 10MW/20MWh battery energy storage system (BESS) in Senegal. Named the Walo Storage project, it marks West Africa’s first solar installation with dedicated energy storage for frequency regulation.
[pdf] After production finishes, the usage stage begins when solar panels go to work converting sunlight into energy. During this period, the power generated by solar PV installations offsets the energy used during the production stage, before delivering renewable energy to the grid.
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