Solar Energy Storage and Battery Systems
A battery stores solar electricity for later use. Selection depends on daily consumption, critical loads, inverter compatibility and backup duration.
kW versus kWh
kW describes simultaneous load power; kWh describes stored energy. Inverter power, appliance starting demand and usable capacity are checked together.
Will it work during an outage?
Not every battery system automatically powers the whole building. Backup output, compatible inverter, protection and critical circuits must be designed. Compatibility is checked before retrofitting.
Information needed for a quote
Share appliances, operating hours, existing inverter model and backup time. The System Builder provides an initial requirements list; final selection follows technical review.
Frequently Asked Questions
It depends on whether the existing inverter supports a battery. With a hybrid inverter the battery can be added directly; otherwise a separate AC-coupled battery inverter is used. Compatibility is confirmed by a technical review.
Daily consumption (kWh) is multiplied by the desired days of autonomy and then divided by the battery's usable depth of discharge and the system efficiency. The battery sizing tool in the calculator does this with your own figures.
Battery life is given as a number of cycles (charge–discharge rounds) rather than years and depends on the chemistry, depth of discharge and temperature. Each product's cycle life is stated in the manufacturer's data sheet.
In a ventilated place out of direct sunlight, protected from moisture and within the temperature range stated by the manufacturer. High temperatures shorten battery life.