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How much extra energy do micro-inverters produce?

The extra output claim depends on a number of factors, such as the system design, the actual solar module efficiency and site/roof specific issues. Many micro-inverter brands claim up to 25% increase in yield for their product when compared to string inverters, in situations where the panels experience heavy shading. The increase in yield would in most cases be between 5 to 10% in installations with no shading or compromising issues. For a detail analysis of what suits your specific installation situation please discuss the option of string versus micro inverter with your LG solar panel installer.