After connecting the solar panels to the inverter, you need to connect the inverter to the battery or grid. If you’re using a battery, connect the inverter to the battery terminals. If you’re connecting to the grid, connect the inverter to the electrical panel using a dedicated circuit breaker.
Finally, the solar power inverter is connected to the solar battery in an off-grid system. For grid-tied solar panels, large inverters or even small micro inverters may be connected directly after the charge controllers, in lieu of a storage battery onsite. If you do not plan to use any AC electricity, then a solar inverter is entirely optional.
The main purpose of connecting solar panels to an inverter is to convert the direct current (DC) electricity produced by the solar panels into alternating current (AC) electricity that can be used to power household appliances and be fed into the electrical grid.
Here are the steps to connect the inverter to the grid: Connect the solar panels to the inverter using the appropriate cables. Connect the inverter to the grid using the appropriate cables. Make sure the inverter is turned off before connecting the cables. Connect the AC output of the inverter to your home or business electrical panel.
Pay very close attention to the +’s and -’s, as connecting the wrong parts could critically damage your charge controller. Finally, connect your positive terminals on the solar panels and charge controllers to one another with an MC4 cable or special adapter. Likewise, connect the negative terminals between the two components.
From the solar panels and through the charge controller, every watt-hour of electricity produced in an off-grid DIY system is sent to a solar battery bank. The battery bank is actually connected to the charge controller, rather than the solar panels themselves, though some products may come with the charge controller already attached.