trezor.io
Rate this file (Rating : 5 / 5 with 11 votes)
young curly blonde girl wearing a headband in the wind farm with wind turbines
trezor.io

Young Curly Blonde Girl Wearing A Headband In The Wind Farm With Wind Turbines

The first utility grid-connected wind turbine to operate in the UK was built by John Brown & Company in 1951 in the Orkney Islands.
Resources
A quantitative measure of the wind energy available at any location is called the Wind Power Density (WPD) It is a calculation of the mean annual power available per square meter of swept area of a turbine, and is tabulated for different heights above ground. Calculation of wind power density includes the effect of wind velocity and air density. Color-coded maps are prepared for a particular area described, for example, as "Mean Annual Power Density at 50 Meters". In the United States, the results of the above calculation are included in an index developed by the National Renewable Energy Laboratory and referred to as "NREL CLASS". The larger the WPD calculation, the higher it is rated by class. Classes range from Class 1 (200 watts per square meter or less at 50 meters altitude) to Class 7 (800 to 2000 watts per square meter). Commercial wind farms generally are sited in Class 3 or higher areas, although isolated points in an otherwise Class 1 area may be practical to exploit.

File information
Filename:478075.jpg
Album name:Babes
Rating (11 votes):55555
Keywords:#young #curly #blonde #girl #wearing #headband #wind #farm #turbines
Filesize:81 KiB
Date added:May 11, 2012
Dimensions:721 x 1073 pixels
Displayed:519 times
URL:displayimage.php?pid=478075
Favorites:Add to Favorites