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SEAOC Wind Design for Solar Arrays PV2-2017 is now available

Friday, November 10, 2017  

The SEAOC Wind Committee and SEAOC Solar Photovoltaic Systems Sub-Committee are pleased to announce the publication of their report PV2-2017 “Wind Design for Solar Arrays.” The 2017 edition is an update to the Committee’s 2012 report on this topic, which formed the basis for new design provisions in ASCE 7‑16. PV2-2017 references the ASCE 7‑16 provisions, incorporates knowledge from research since 2012, and provides background and recommendations beyond those in ASCE 7‑16.
For rooftop low-profile arrays, examples of new information include:

  • an interior roof zone for large roof sizes
  • ability to consider building corners independently according to the wind vortex conditions
  • optional refinements for array edge factors
  • more flexibility for proportioning gaps between solar modules

For rooftop flush-mounted arrays, an important option related to gap sizes between modules is provided, and refinements to the array edge factor are given. Additional provisions and commentary are provided for wind tunnel testing of solar arrays, and important commentary is added on wind dynamic effects on ground-mounted solar arrays.
David Banks of CPP Wind Engineering Consultants is the principal author of the 2017 update, with substantial assistance from Karl Telleen of Maffei Structural Engineering. SEAOC is grateful to these authors, as well as Jennifer Carey of Unirac who led the development of example problems, Joe Maffei who chairs the SEAOC PV Committee, and the broad participation from numerous engineers in consulting and in the solar industry.

Visit the SEAOC Bookstore to download the publication today. FREE for SEAOC members, $20 for non-members.