All PV inverters are responsible for managing grid interaction and PV production. With traditional string inverters, PV production is managed at the string level. This means that the power production of all of the panels is determined by the weakest performing solar panel in that string. So, when one of your panels becomes damaged or dirty, either the performance of all the panels drops, or the lower-performing panels may stop producing all together until the issue is resolved. However, SolarEdge’s DC optimized inverter is different. On review, the SolarEdge solution moves the management to the panel by using power optimisers. These power optimisers are responsible for managing the power of each individual panel so that each reaches its own maximum potential regardless of the performance of the other panels.
Since each panel operates individually, the SolarEdge system offers more design flexibility in the system layout, making it possible for more roofs to have a PV system. For example, panels can be installed vertically AND horizontally, and on different sides of the roof. This allows for more panels on your roof, meaning more energy at a lower cost-per-watt in the long run.