Capitol Hill in Washington, District of Columbia — The American Northeast (Mid-Atlantic)
Power from the Wind
Sustainable Solutions: Residential Wind Turbines
You are looking at a Windspire, a vertical-axis wind turbine that generates electricity from wind power. This model produces about 2,000 kWh of electricity a year in an area with average wind speeds of 12 mph (about ¼ the needs of the average house). It can be used on-grid to power homes, businesses, even large commercial buildings, and off-grid, etc. The model you are viewing is a “giromill” style, which used vertical airfoils that, just like the airplane wings, use the concept of “lift”. Lift enables the rotor to spin around a little faster than the speed of the wind.
Since it spins around a vertical axis, Windspire can catch the wind from any direction to turn the rotor without re-orienting itself. The airfoils also spin more slowly than the tips of propeller-style blades, rendering it virtually silent. Windspire was specifically designed with aesthetics and minimal cost in mind.
How can a wind turbine convert wind power into electricity?
In areas of sufficient sustained wind, the rotor is turned in the same manner as a windmill. The rotating center pole (as seen here, can be either on vertical or horizontal axis) is attached to a generator containing strong magnets and coils inside. As the magnets rotate around the coils of copper wire, a magnetic field is created, which induces
How much electricity does a residential-scale wind turbine produce?
A wind turbine produces different amounts of electricity at different wind speeds. At higher sustained wind speeds, more energy is produced (for reasons of safety, residential turbines are limited to a maximum velocity). The energy generated from a wind turbine depends on the “windiness” of your site as measured by both the sustained wind speed and annual seasonal variability of the wind. With this information, it is possible to calculate an estimate of the amount of energy you will generate over a year.
Erected by Department of Energy.
Location. 38° 53.314′ N, 77° 0.756′ W. Marker is in Capitol Hill, District of Columbia, in Washington. Marker is at the intersection of Maryland Avenue SW and 1st Street SW, on the right when traveling east on Maryland Avenue SW. Touch for map. Marker is located on the north side of the United States Botanic Garden. Marker is in this post office area: Washington DC 20560, United States of America.
Other nearby markers. At least 8 other markers are within walking distance of this marker. United States Botanic Garden (a few steps from this marker); Green Roof Engineering Green Roof Plants (within shouting distance of this marker); James A. Garfield (within shouting distance of this marker); a different marker also named Power from the Wind (within shouting distance of this marker); Capitol Square (within shouting distance of this marker); Capitol Square, SW (within shouting distance of this marker); The Pollinator Partnership (about 300 feet away, measured in a direct line). Touch for a list and map of all markers in Capitol Hill.
Categories. • Man-Made Features •
Credits. This page was last revised on June 16, 2016. This page originally submitted on November 19, 2011, by Bill Coughlin of North Arlington, New Jersey. This page has been viewed 471 times since then. Photos: 1, 2, 3. submitted on November 19, 2011, by Bill Coughlin of North Arlington, New Jersey.