National Wind Watch Picture Gallery

Latest additions - Graphics
Wind turbines generate infrasoundRecording and graphs by courtesy of Rick JamesMar 30, 2014
Capacity versus outputTotal capacity in 2013: 2,011 MW; average production in 2013: 529 MW (26.3%) - graph by courtesy of thejournal.ieFeb 23, 2014
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.Feb 13, 2014
Lempster for saleHouses for sale around the Lempster, New Hampshire, wind turbines, Feb. 9, 2012 - by courtesy of Vermonters for a Clean EnvironmentJan 11, 2014
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.Oct 26, 2013
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.Oct 07, 2013
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/C3EE41973HSep 12, 2013
Wind turbine sizes over the yearsNote significant increase in wind turbine size in 2000 - from Garrad HassanJul 29, 2013
Wind turbine sizes over the yearsNote significant leap in 2000 - from 29, 2013
How A-weighted sound measurement ignores low frequenciesThe shaded area represents the degree of low-frequency part of the spectrum ignored by A-weighting - from Salt & Kaltenbach 2011, Bulletin of Science, Technology & Society 31(4):296-302Feb 14, 2013
New Hammer of the ScotsAlex Salmond: historic wrecker of a beautiful country - from Cartoons by Josh ( 08, 2013
Happy new year?Happy new year? - from the European and North American Platforms Against WindpowerDec 30, 2012
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