Microinverter

A microinverter is a small inverter installed on the underside of each individual solar panel. Unlike a string inverter that handles the output of multiple panels at once, a microinverter converts DC to AC right at each panel, allowing every panel to operate independently.

The key advantage of microinverters is panel-level optimization. If one panel is shaded by a tree or chimney, only that panel’s output drops — the rest of the array continues producing at full capacity. Microinverters also enable panel-level monitoring, so homeowners can track the performance of each individual panel through an app or web portal. They are especially well-suited for complex roofs with multiple orientations, dormers, or partial shading. The trade-off is higher upfront cost compared to string inverters — typically $1,000–$2,000 more for an average residential system. However, many homeowners find the improved energy harvest and monitoring capabilities worth the investment. Enphase is the leading microinverter manufacturer in the US market.