National Wind Watch Picture Gallery


annoyance-wind-turbine-vs-transportation.png
Comparison between the dose-response relationship for transportation noise and wind turbine noiseComparison between the dose-response relationship for transportation noise and wind turbine noise (Leq = average sound level; DNL = day-night average sound level) - Pedersen and Persson Waye, J Acoust Soc Am 2004;116(6)3460
Iain-Green-Loch-Ness-Monsters.png
Loch Ness monstersThe latest pics of the Loch Ness monsters - by Iain Green
LOCH-NESS-WIND-FARM-UPDATE-18-JAN-2013.jpg
Loch NessBy courtesy of "alan sloman's big walk" - http://alansloman.blogspot.com/
Turbine-money-fire-sWINDle.jpg
Up in flamesUp in flames - another billboard by Preston McClanahan of the Rhode Island School of Design - for campaigners in Iowa
wind-turbine-infrasound.png
Wind turbines generate infrasoundRecording and graphs by courtesy of Rick James
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Capacity versus outputTotal capacity in 2013: 2,011 MW; average production in 2013: 529 MW (26.3%) - graph by courtesy of thejournal.ie
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Unweighted, C-weighted, and LAeq(LF) levels, but not A-weighted level, drop when turbines shut downWhen turbines are shut down, the unweighted, C-weighted, and LAeq(LF) levels drop correspondingly, whereas A-weighted level does not.
Lempster4sale.jpg
Lempster for saleHouses for sale around the Lempster, New Hampshire, wind turbines, Feb. 9, 2012 - by courtesy of Vermonters for a Clean Environment
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Wind turbine noise averaged 4.5-9 dB louder than predictedAt 10 different facilities, acoustical engineers Robert Rand and Stephen Ambrose measured wind turbine noise to be 3-12 dB (average 4.5-9 dB) louder than had been predicted.
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Annoyance from wind turbine noiseFrom Pedersen E, van den Berg F, Bakker R, Bouma J. Response to noise from modern wind farms in The Netherlands. Journal of the Acoustic Society of America 2009;126(2):634–43.
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Wind-power generation does not correlate with demandWind-power generation (blue), insolation (gold), and power demand (red) time series data show wind energy's poor correlation with demand. Thirty days of data collected in April 2010 from Bonneville Power Administration are superimposed and normalized to their maximum values. Average values are in color-highlighted black lines. From Barnhart et al., DOI:10.1039/C3EE41973H
wind-turbine-size-growth.jpg
Wind turbine sizes over the yearsNote significant increase in wind turbine size in 2000 - from Garrad Hassan
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