Determining PV Performance Ratios

There are several challenges to address, and aspects to consider when building a solar energy plant. The path from engineering to becoming fully operational is often long and arduous, with many stakeholders that need attention.

Determining PV Performance Ratios

Image Credit: OTT HydroMet - Solar Energy

One of the most crucial aspects of this process is monitoring the performance ratio (PR). It is important to begin this process correctly and use the appropriate techniques to measure the effectiveness of a solar project.

Performance Ratio Challenges

The performance ratio is typically understood as a comparison between the final (actual) yield and the reference (design) yield.

Performance ratios for a specific solar energy project are varied, theoretical and actual. These are generally related to different phases of the project, for example, its design, installation, commissioning, contractual agreements and operation.

Many factors will also influence the calculated outcome, including environmental conditions and the choice of components.

Kipp & Zonen has published a whitepaper that summarizes and explores the six key factors that influence PR and how to address these, allowing users to select a performance ratio that is best suited to their needs.

This information has been sourced, reviewed and adapted from materials provided by OTT HydroMet - Solar Energy.

For more information on this source, please visit OTT HydroMet - Solar Energy.


Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    OTT HydroMet - Solar Energy. (2022, May 26). Determining PV Performance Ratios. AZoCleantech. Retrieved on September 30, 2022 from

  • MLA

    OTT HydroMet - Solar Energy. "Determining PV Performance Ratios". AZoCleantech. 30 September 2022. <>.

  • Chicago

    OTT HydroMet - Solar Energy. "Determining PV Performance Ratios". AZoCleantech. (accessed September 30, 2022).

  • Harvard

    OTT HydroMet - Solar Energy. 2022. Determining PV Performance Ratios. AZoCleantech, viewed 30 September 2022,

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type