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Understanding the Current Science, Regulation, and Mitigation of Shadow Flicker Webinar

February 10, 2011

This is the fifth in a series of free webinars funded by the DOE Wind Powering America Initiative. The webinar included a panel of experts in the fields of visual assessment, landscape architecture, and environmental planning with a question and answer session.

The webinar was designed for attendance by the general public, local officials, state regulators, facility siting decision-makers, policy-makers, and others interested in a review of objective information on the impacts of wind energy.


The following documents are available as Adobe Acrobat PDFs. Download Adobe Reader.

  • Thomas Priestley (PDF 7.2 MB), Senior Environmental Planner, CH2M Hill
  • Matthew Allen (PDF 1.5 MB), Principal, Saratoga Associates
  • Richard Lampeter (PDF 299 KB), Senior Scientist, Epsilon Associates

Discussion Topics

The presentations and discussion provided webinar participants with an understanding of:

  • What shadow flicker is, and how it is created;
  • The methodologies used to forecast when, where, and how much shadow flicker will occur;
  • How forecasted data are analyzed to estimate the potential impact on nearby receptors;
  • The current landscape of state and local regulations, ordinances and guidance documents, and their role in the wind project permitting process;
  • Available mitigation and management practices; and,
  • Areas in need of additional research and analysis.

Audio and text versions of the webinar are available (WMV 16.4 MB) Download Windows Media Player. Time: 02:04:03. Text Version (PDF 213 KB) Download Adobe Reader.

Receive Notices for Future Webinars in the Series

If you would like to be on the NEWEEP mailing list to be notified of future NEWEEP webinars via email, please provide us with your contact information. Subscribers will also receive periodic email announcements about newly posted information on the New England Wind Forum website and new editions of the New England Wind Forum newsletter. The addresses and information of those signing up will not be distributed to anyone else for any other purpose. Past NEWEEP webinar audio visual files and transcripts are available.

—Julie Jones