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How Does a Solar System with Battery Backup Work?

When the sun rises, solar begins powering the home. When additional power is required within the home, the home can then pull from the utility grid. The battery system charges by solar during the day, when solar panels are producing more electricity than the home is consuming. The solar battery system then stores that energy until the home needs it, such as when solar is no longer producing at night, or when the utility grid is offline during a power outage.

Here's a brief overview of how it works:

1.  Solar Panels: The system starts with solar panels installed on the roof or in an open area. These panels capture sunlight and convert it into direct current (DC) electricity.

2.     Inverter: The DC electricity generated by the solar panels is sent to an inverter, which converts it into alternating current (AC) electricity. AC is the type of electricity used in most homes and businesses.

3.     Powering the Home: The AC electricity is then used to power the electrical appliances and devices within the home. During normal operation, if the solar system generates more electricity than the home needs, the excess can be fed back into the grid or stored in the battery.

4.     Battery Storage: The energy storage component is a battery system that stores excess electricity generated by the solar panels. This stored energy can be used during periods when the sun is not shining, such as at night or during cloudy days. Additionally, it serves as a backup power source during a grid outage.

5.     Backup Power: When there's a power outage, the solar system with a battery backup automatically detects the disruption in the grid. The system then switches to drawing power from the battery to keep essential appliances and lights running in the home.

6.     Grid Interaction (Optional): Some solar-plus-storage systems are designed to interact with the grid. They can be set to draw electricity from the grid during off-peak times when electricity rates are lower, and then use or store that electricity for use during peak times or outages.

Having a solar system with a battery backup provides a reliable and sustainable source of electricity, especially during power outages. It offers energy independence and the ability to reduce reliance on traditional grid power.

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