Typical AC modules available in the market include microinverter-based AC modules and DC optimizer-based AC modules. Here’s a brief explanation of each type:
1.Microinverter-based AC Modules: Microinverter-based AC modules have a microinverter integrated into each individual solar panel. The microinverter converts the DC electricity generated by the solar panel into AC electricity. This means that each panel operates independently, optimizing the performance of each panel regardless of shading or other issues affecting individual panels. Microinverter-based AC modules offer panel-level monitoring and control, allowing you to monitor the performance of each panel separately.
2.DC Optimizer-based AC Modules: DC optimizer-based AC modules use DC optimizers, also known as power optimizers, which are connected to each solar panel. The DC optimizer optimizes the DC electricity generated by the solar panel before it is converted into AC electricity by a central inverter. The central inverter then converts the DC electricity from multiple panels into AC electricity. DC optimizer-based AC modules offer some of the benefits of microinverter-based AC modules, such as panel-level MPPT and improved system performance in shaded conditions. However, the optimization occurs at the DC level rather than at the panel level.
Both microinverter-based AC modules and DC optimizer-based AC modules offer simplified installation, improved system performance, and monitoring capabilities. They eliminate the need for a separate string inverter, simplify the wiring, and allow for individual panel performance monitoring. These features make AC modules an attractive option for residential and commercial solar installations.
It’s important to note that different manufacturers may have variations in the design and functionality of their AC modules. Therefore, it’s recommended to consult with a professional solar installer or research specific product specifications to understand the features and benefits of a particular AC module before making a purchase decision.