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Off-grid PV system (1) The
PV modules collect the sun's rays and convert it into electric energy
(2) Wires distribute the electric energy created from the PV modules.
(3) The
charge controller is used to regulate in-flow of electric energy to avoid overcharging the battery.
(4) The
energy storage system stores electric energy for later use.
(5) A
low voltage disconnect - which can be stand-alone or integrated into the
charge controller and
inverter - regulates out-flow of electric energy to avoid emptying the battery completely.
(6) The
loads - light or other appliances - can consume electric energy from the
energy storage system as needed.