Sun light consist of particles called photons, As photons observed by the Solar PV Panels installed on your roof generate Direct current (DC).
A grid connected inverter convert Direct Current (DC) in to 240V Alternate Current (AC) Suitable for your household appliances.
AC Current gets distributed to your home or business through electrical panels.
Any excess energy generated by your solar system will be exported in to electricity grid through the utility meter.
The grid supplies electricity to the switchboard on a cloudy day or during the night time when solar panels are not generating electricity.