DC optimiser technology was developed to maximise the energy harvest from solar photovoltaics

A DC optimiser is a technology developed to maximise the energy harvest from solar photovoltaics. They do this by individually
tuning the performance of the panel through maximum power point tracking, and optionally tuning the output to match the
performance of the inverter.

Power optimisers are especially useful when the performance of the power generating components in a distributed system will vary widely,
differences in equipment, shading of light or wind, or being installed facing different directions or widely separated locations