How Photovoltaic Systems Work

There are three basic types of solar panel systems available for residential and commercial use: (1) Grid-Tie Solar Systems (2) Grid-Tie with Solar Battery Backups and (3) Off-Grid Solar Panels. All three use solar photovoltaic (PV) panels and are generally installed on the south-facing roof of your structure. These solar panels power the system, producing DC (direct current) electricity when the sun is available. (If roof space is restricted or compromised, we can offer alternative solutions to meet your needs and expectations.)

Grid-Tie with Battery Backup Systems

Grid-tie with backup systems are designed to function when the electric utility grid is unreliable or when the constant operation of some devices is essential. With this type of system, you’ll be able to move one step closer to total energy independence.

Typically, these systems use a bank of batteries paired with solar energy panels to supply power to the building whenever the electric utility grid is down.

For this type of system, DC power from the solar array travels to a charge controller that constantly monitors the level of charge to the batteries. When the batteries are low on charge, electricity passes to them. If they are fully charged, then the electricity is diverted to an inverter and then the electrical wiring of your structure.

When utility grids fail, batteries power the system

If the sun is not available, the utility grid provides power to the house. Excess energy can be sent back to the electric utility for credit. When there is no power from the utility grid, power is supplied by the batteries and the solar panel array.

Have more questions about solar energy or solar power systems? Check out our FAQ page for answers or contact us today. You can get a free consultation for solar installation in Lindale or East Texas while you’re at it!


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