Those 4,000 watts translate into 4 kilowatt hours, which is the unit of measurement used for energy usage. You can see your previous kilowatt hours used on old electric bills. The average household uses more than 10,000 kilowatt hours per year. To cover all of your energy needs, you may need quite a few panels.
Price includes ;
-5kva 48v hybrid inverter must.
-8pc 500watts solar panel.
-10pc 200ah Gel Ritar battery.
-4pc mounting rail.
-20mtrs dc auto cable.