Solar panel provides DC or AC?

DC.            

DC only from the panels then fed to inverters that change it to AC so you can use it

It provide variable DC current. High at the peak of the day when sun light intensity is more, low at dust/ dawn.

Solar panels provide DC power to charge the battery bank.
An Inverter supplies AC power output from the Battery Bank DC input.

it is dc but i cant send short messages so i made it longer