For those that have always wondered how solar and batteries work in conjunction with each other, there is a simple explanation.
How batteries work:
Solar panels charge batteries.
Solar batteries work by the conversion of the AC energy that is produced in the solar panels and is stored in the form of DC power in batteries to be used at a later stage.
In some instances, though, solar batteries have their own inverter and therefore are able to incorporate integrated energy conversions.
Larger solar systems will always require a battery that has a bigger capacity for storage of DC power.
When solar batteries are installed as part of a solar system, excess solar electricity for the home will be stored – this is instead of being sent right back to the grid of the power utility.
For those that have solar panels that produce a surplus of solar energy, the excess energy will be used to recharged the battery.
That means as and when the solar panels are no longer producing electricity, the surplus stored power will now be drawn from this surplus for cloudy days or night-time use.
Electricity is only sent back to the grid when the battery is fully charged and you will only draw power from the grid when the battery is flat.
Solar systems that have an excess solar storage will be able to store surplus solar power on-site for later use when the sun goes down and can also offer a short period of backup power when the power goes down.
The above is a brief synopsis on how batteries work.