Evaluation of Irradiance Variability Adjustments for Subhourly Clipping Correction

William B. Hobbs, Chloe L. Black, William F. Holmgren, Kevin S. Anderson

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Subhourly changes in solar irradiance can lead to energy models being biased high if realistic distributions of irradiance values are not reflected in the resource data and model. This is particularly true in solar facility designs with high inverter loading ratios (ILRs). When resource data with sufficient temporal and spatial resolution is not available for a site, synthetic variability can be added to the data that is available in an attempt to address this issue. In this work, we demonstrate the use of anonymized commercial resource datasets with synthetic variability and compare results with previous estimates of model bias due to inverter clipping and increasing ILR.

Original languageEnglish (US)
Title of host publication2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665460590
StatePublished - 2023
Externally publishedYes
Event50th IEEE Photovoltaic Specialists Conference, PVSC 2023 - San Juan, United States
Duration: Jun 11 2023Jun 16 2023

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference50th IEEE Photovoltaic Specialists Conference, PVSC 2023
Country/TerritoryUnited States
CitySan Juan


  • clipping
  • high-frequency
  • inverter
  • irradiance
  • modeling
  • photovoltaic
  • satellite
  • subhourly
  • synthetic
  • variability

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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