What Happens to Excess Energy from Grid-Tied Solar?

Feed-In Tariffs (FITs) and Net Metering

In a grid-tied solar system, excess energy is typically sent back to the electrical grid through a process called net metering. This involves a bi-directional meter that measures both the energy produced by the solar panels and the energy consumed from the grid. Under a net metering agreement, the utility company will typically compensate the homeowner for excess energy produced, often through Feed-In Tariffs (FITs) or a credit on their electricity bill.

Inverter and Grid Connection Requirements

The inverter is a critical component in a grid-tied solar system, as it converts the DC power generated by the solar panels into AC power that can be fed back into the grid. In the United States, the inverter must meet specific requirements, such as IEEE 1547 compliance, to ensure safe and reliable grid connection. Homeowners should consult with a qualified solar installer to ensure their inverter and grid connection meet local and national standards.

Monitoring and Energy Management

Monitoring and energy management systems can help homeowners optimize their solar energy production and minimize energy consumption from the grid. These systems can track energy production, consumption, and exports in real-time, providing valuable insights to homeowners on how to improve their energy efficiency and take advantage of their solar energy system.