If you have a site with shading, or simply want a more efficient system, then power optimizers are a great option for you. If you have a south facing roof, with low chance of cloudy days or shading, the additional cost may be unwarranted (although, this is mandatory with a SolarEdge inverter).

What does an optimizer do for a solar panel?

The SolarEdge Power Optimizer is a DC/DC converter which is connected by installers to each solar module, turning them into smart modules. The SolarEdge Power Optimizers increase energy output from PV systems by constantly tracking the maximum power point (MPPT) of each module individually.

Are microinverters worth the extra money?

To sum it all up, microinverters are definitely a value-add, but are only recommended if you need to comply with rapid shutdown requirements, have panels facing multiple orientations or you have shading issues. Otherwise, the less-expensive standard inverter is usually more cost-effective.