When the sun shines, PV (photovoltaic) cells in the solar panels convert sunlight into DC (direct current) electricity.
This energy is converted into AC (alternating current) power, by an inverter (included in your purchase), for use in your home.
Your home appliances (fridge, lights, TV, etc.) use this solar power before drawing any additional power needed from the electricity grid.
Excess energy created can be stored in a battery to be used when the sun goes down or exported back to the electricity grid.
That’s it.