Understanding Maximum Power Point of PV Modules
A solar PV module, or solar panel, has specifications that include various terms and ratings indicating its performance.
While Open-Circuit Voltage and Short-Circuit Current are crucial specifications to evaluate, there are other key factors to consider. This article aims to shed light on one such specification: Maximum Power Point.
What is Maximum Power Point?
Maximum Power Point, commonly represented as Pmax, refers to a specific point on the current-voltage (I-V) curve (illustrated below), where the product of current and voltage reaches its highest value.
In simpler terms, it is the point at which a solar panel generates the maximum power output, measured in watts (W).
The Maximum Power Point of the panel is impacted by a wide range of variables, including the irradiance intensity or the amount of light falling on the cells, the solar panel's temperature, and the presence of irregularities like micro-cracks and device degradation.
Why is knowing Maximum Power Point important?
Pmax serves as an indicator of the panel's ability to produce the highest achievable power output, making it one of the most pivotal specifications to consider when selecting a solar panel to meet your requirements.