Solar Energy Frequently Asked Questions

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What happens at night and on cloudy days?

Because solar electric systems only produce power when the sun is shining, many consumers also connect their solar system to a utility power grid that provides additional electricity when the solar panels are not producing enough. That type of solar system is called a grid-tied system.

All of our manufacturers have been properly certified by the CEC and the local utilities for grid-connected installations.

Wind Power Advantages

  • Backup power if the solar system isn’t producing enough
  • Net metering if the solar system is producing too much power
  • Lower initial investment than for most off-grid systems


  • Some dependence on the utility grid
  • May not be able to use solar system in the event of a grid power failure
  • Some incentives require that contractors demonstrate proper licensing and capability in areas specific to grid-tied installation

What happens if a solar system produces more energy than the home needs?

In a grid-tied system, homeowners can get credit when their system produces more solar electricity than the house itself needs. Many utility companies use “net metering” or “net billing” for customers with solar energy systems. The utility credits a homeowner’s account for excess solar electricity, which goes back to the utility grid, then applies the credit to other months when the system produces less electricity.

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