Quick Answer
Net metering is not available for all types of solar systems. This policy allows homeowners to sell excess energy back to the grid, but regulations vary by state and utility company.
Net Metering Eligibility
Net metering is typically available for grid-tie solar systems that are connected to the electrical grid. These systems can be either small residential systems or larger commercial installations. In the United States, for example, the Federal Energy Regulatory Commission (FERC) has guidelines that encourage states to adopt net metering policies for grid-tie systems. However, not all states or utility companies offer net metering, and the specific rules and requirements can vary significantly.
System Size and Net Metering
The size of the solar system can also impact net metering eligibility. Most utility companies have a maximum system size that qualifies for net metering, typically ranging from 10 to 100 kilowatts (kW). Residential systems are usually limited to smaller sizes, such as 5-20 kW, while commercial systems can be larger. Homeowners should check with their local utility company to determine the maximum system size eligible for net metering.
Off-Grid and Battery-Based Systems
Off-grid and battery-based solar systems are generally not eligible for net metering, as they do not feed energy back into the grid. These systems are designed to operate independently of the grid, and their purpose is to provide a backup power source during grid outages or in areas with limited grid access. However, some utility companies may offer special rates or incentives for off-grid systems that also include energy storage components. Homeowners should consult with their local utility company to determine their options.
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