Maximum Power Point Tracking (MPPT)
An algorithm in solar inverters and charge controllers that constantly adjusts voltage and current extraction to keep panels operating at their maximum power output as conditions change.
Why It Matters
MPPT enables 20-30% more harvest compared to non-MPPT controllers. All modern solar inverters use MPPT, but it is especially important for battery charge controllers.
Related Terms
Inverter
A device that converts direct current (DC) electricity from solar panels into alternating current (AC) electricity used by your home.
Power Optimizer
A DC-to-DC converter installed behind each solar panel that maximizes the output of individual panels before sending power to a central string inverter.
Charge Controller
A device that regulates the voltage and current from solar panels to a battery bank, preventing overcharging and deep discharge. Common types are PWM and MPPT.