Inverters transform the DC electricity produced by your PV modules into the alternating current (AC) electricity commonly used in most homes for powering lights, appliances, and other gadgets. Grid-tied inverters synchronize the electricity they produce with the grid’s utility grade AC electricity, allowing the system to feed solar-made electricity to the utility grid.
Most grid-tie inverters are designed to operate without batteries, but battery-based models also are available. Battery-based inverters for off-grid o
r grid-tie use often include a battery charger, which is capable of charging a battery bank from either the grid or a backup generator during cloudy weather.
Most grid-Intertied inverters can be installed outdoors (ideally, in the shade). Most off-grid inverters are not weatherproof and should be mounted indoors, close to the battery bank.
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