Page - 144 - in Clean Water Using Solar and Wind - Outside the Power Grid

144 Clean Water Using Solar and Wind: Outside the Power Grid Biol. reactors Cooking Solar PV modules Wind turbine Battery storage Diesel generator Inverter Inverter Small appliances Charge controller Start/stop Lighting Water pumps Disin- fection Desalination Energy management controller Water tanks Figure 11.1 Block diagram of an energy management system for a combined solar PV and wind turbine system in a stand-alone operation. The production units are shown above the control system and the consuming devices are below the controller. The wide arrows indicate the energy flow through the system, while the broken arrows show the information and command flows. It is apparent that energy management ought to take many operational modes into consideration. Naturally the user should not worry about the details. Still it is crucial to clearly explain to the user how the system prioritises its operations. Downloaded from https://iwaponline.com/ebooks/book-pdf/520710/wio9781780409443.pdf by IWA Publishing user