Question Four

$[10$ Mark

A solar standalone system contains four $(4)250Ah,12V$ batteries supplying a $1\mathrm{.}5$ kW pump. For how long can they supply power to the pump after the sun has gone down? Wl capacity of solar panels rated $12$ V is needed for the system if it is designed to run in the nis on batteries and during the day for $5$ hours in a climate with $6$ peak sunshine hours? Determ also the size of charge and discharge controllers needed including the inverter. The syst operating voltage is $24$ V $.$

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