When multiple panels are connected together in a string, the combined output flows to the string inverter. This inverter then converts the entire array’s DC output into usable AC power. Once converted, the electricity can be used on-site or fed into the power grid.
[pdf] When multiple panels are connected together in a string, the combined output flows to the string inverter. This inverter then converts the entire array’s DC output into usable AC power. Once converted, the electricity can be used on-site or fed into the power grid.
[pdf] Lithium batteries are connected in series when the goal is to increase the nominal voltage rating of one individual lithium battery - by connecting it in series strings with at least one more of the same type and specification - to meet the nominal operating voltage of the system the batteries are being installed to support.
[pdf] 
