Evaluation of Curtailment Associated with PV System Design Considerations

Joseph Azzolini, Matthew Reno, Kelsey Horowitz

Research output: Contribution to conferencePaper

3 Scopus Citations


Distributed photovoltaic (PV) systems equipped with advanced inverters can control real and reactive power output based on grid and atmospheric conditions. The Volt-Var control method allows inverters to regulate local grid voltages by producing or consuming reactive power. Based on their power ratings, the inverters may need to curtail real power to meet the reactive power requirements, which decreases their total energy production. To evaluate the expected curtailment associated with Volt-Var control, yearlong quasi-static time-series (QSTS) simulations were conducted on a realistic distribution feeder under a variety of PV system design considerations. Overall, this paper found that the amount of curtailed energy is low (<; 0.55%) compared to the total PV energy production in a year but is affected by several PV system design considerations.
Original languageAmerican English
Number of pages5
StatePublished - 2020
Event2020 IEEE Power and Energy Society General Meeting (PESGM) -
Duration: 2 Aug 20206 Aug 2020


Conference2020 IEEE Power and Energy Society General Meeting (PESGM)

NREL Publication Number

  • NREL/CP-5000-75395


  • curtailment
  • distribution feeder
  • inverters
  • photovoltaics
  • simulations
  • solar PV
  • system design
  • Volt-Var


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