Comparing ramp rates from large and small PV systems, and selection of batteries for ramp rate control

Daniel Cormode, Alex D. Cronin, William Richardson, Antonio T. Lorenzo, Adria E. Brooks, Daniella N. Dellagiustina

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

28 Scopus citations


We compare the AC power fluctuations from a 1.6 MW and a 2 kW photovoltaic (PV) system. Both of these PV generating stations exhibit fluctuations exceeding 50% of their rated capacity in under 10 seconds. The smaller system can fluctuate more rapidly, exhibiting 50% dropouts in 3 seconds. Although the MW-scale system covers 4000 times as much ground area, the bandwidth of the fluctuations is remarkably similar. We explore explanations for this observation, and we discuss the impact of this on battery sizing.

Original languageEnglish (US)
Title of host publication39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Print)9781479932993
StatePublished - Jan 1 2013
Event39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States
Duration: Jun 16 2013Jun 21 2013

Publication series

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


Other39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Country/TerritoryUnited States
CityTampa, FL


  • Battery integration
  • Grid interconnection
  • Intermittency
  • Monitoring
  • Output fluctuations

ASJC Scopus subject areas

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

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