How much energy that 1kW solar plant generates per day?

On a bright day 1kW Solar plant will gather minimum 4kWH of energy. This energy has to be stored in a battery of equivalent energy capacity. For instance one would need 24V/200AH battery. This energy collected in one day will support 500W load for 8 hours.

Please remember the load during sunny time (like TV and fans) will be directly fed from sun's energy and therefore need not be stored but loads after sunset will need storing energy in a battery of adequate WH capacity. eg the above battery will store 24Vx200AH =4800WH of energy.

Best option is to find energy consumption at night; hours of usage and Wattage of lights and fans used. That will give us energy needed at night which should be stored during the sunny hours. Battery chosen should have the capacity three times this to support load for 3 nights.
Also the user must clean pv modules preferably each day with dry cloth and once a week with a wet swob since Pakistan has lot of dust like in India.