How much more harvestable energy can an MPPT controller yield over a PWM unit?
Answer
10% to 30% more
The text contrasts older Pulse Width Modulation (PWM) controllers with modern Maximum Power Point Tracking (MPPT) controllers, highlighting the advanced capability of the latter. An MPPT controller is engineered to actively seek out the most efficient voltage and current combination available from the solar panel under the current environmental conditions. This sophisticated tracking mechanism results in a measurable performance gain, typically harvesting between 10% and 30% more usable energy compared to the simpler, less dynamic PWM unit.
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