Grid-tied solar systems connect directly to your utility grid without batteries, using the grid as a virtual battery to draw power when panels underperform and send excess generation back for bill credits through net metering programs.
The photovoltaic grid-connected junction box combines the DC inputs of up to 24 photovoltaic cell components in series into one or multiple outputs, with each output equipped with fuses, lightning arresters, and circuit breakers.
Polycrystalline solar panels work by using multicrystalline silicon cells to absorb sunlight and convert it into electricity. This is a result of the photovoltaic effect, where electrons within the cells of the panel are knocked loose as a direct result of contact with sunlight.
An off-grid inverter is a device that converts direct current (DC) from solar panels or battery banks into alternating current (AC), which powers everyday appliances.
Most solar system owners should choose a grid-tied solar system because it's typically the most cost-effective. You may go off-grid if you live in a remote area, don't consume much electricity, and have the capital to invest in a complete home storage backup system.