Batteries provide power for users who are off-grid or need power during the night time. Different types of batteries fit with different situations.
Many inverters include controlling of the batteries, while certain systems may require a separate charge controller unit to monitor the flow of electricity in and out of batteries.
For grid tied systems used primarily during day time hours, batteries might not be necessary. Not including batteries greatly reduces the price per watt-hour of a system. Many businesses and schools with access to the power grid may not require batteries.
We would have to consider all the factors involved with your situation to figure out what will work for you. How can we discuss your situation with you?
