What is MPPT and how does it work?Updated 3 months ago

Every cell in a solar panel has a point at which the current and voltage output result in the cell's maximum power output.

A Maximum Power Point Tracking (MPPT) solar controller will simulate the load required by the solar panel to achieve maximum power from the cell. 

The regulator determines at which point the cell will output maximum power and, thus, the required voltage and current to achieve maximum power. 

This means you will get the most power from your cells possible at any given time and is particularly helpful in low-light conditions.