Anemometer A device that measures wind speed.

Angle of Attack – The angle of relative air flow to the blade chord.

Battery – An electrochemical device for storing energy.

Battery Bank – An array of Batteries connected in series, parallel, or both

Blade – The part of a wind generator rotor that catches the wind.

Cut-In – The rotational speed at which an alternator or generator starts pushing electricity hard enough (has a high enough voltage) to make electricity flow in a circuit.

Drag – In a wind generator, the force exerted on an object by moving air. Also refers to a type of wind generator or anemometer design that uses cups instead of a blade with airfoils.

Freewheeling – a wind generator that is NOT connected to a Load is freewheeling, and in danger of self-destruction from overspeeding.

Furling – The act of a wind generator yawing out of the wind either horizontally or vertically to protect itself from high wind speeds.

Furling Tail – A wind generator protection mechanism where the rotor shaft axis is offset horizontally from the yaw axis, and the tail boom is both offset horizontally and hinged diagonally, thus allowing the tail to fold up and in during high winds. This causes the blades to turn out of the wind, protecting the machine.

Generator – A device that produces Direct Current from a rotating shaft.

Kilowatt – 1000 watts

Rated Power Output – Used by wind generator manufacturers to provide a baseline for measuring performance. Rated output may vary by manufacturer. For example, one manufacturer’s 1500 watt turbine may produce that amount of power at a 30 mph windspeed, while another brand of 1500 watt turbine may not make 1500 Watts until it gets a 40 mph windspeed. Manufacturer’s ratings statements vary – so read carefully.

Regulator – A device to adjust incoming power so as to avoid overcharging a battery bank. In solar power, the regulator generally just turns the solar array off when the batteries are full. With a wind generator, the regulator generally diverts all or part of the incoming power to a Dump Load when the batteries fill, thus keeping a Load on the wind generator so it will not Freewheel.

Root – The area of a blade nearest to the hub. Generally, the thickest and widest part of the blade.

Rotor –The blade and hub assembly of a wind generator.

RPM – Revolutions Per Minute. The number of times a shaft completes a full revolution in one minute.

Shaft – The rotating part in the center of a wind generator or motor that transfers power.

Start-Up – The windspeed at which a wind turbine rotor starts to rotate. It does not necessarily produce any power until it reaches cut-in speed.

Tail Boom – A strut that holds the tail (vane) to the wind generator frame.

Tape Drive Motor – A type of permanent magnet DC motor often used as a generator in small wind generator systems.

Taper – The change in wind turbine blade width (chord) along the length.

Thrust – In a wind generator, wind forces pushing back against the rotor. Wind generator bearings must be designed to handle thrust or else they will fail.

Thrust Bearing – A bearing designed to handle axial forces along the centerline of the shaft – in a wind generator, this is the force of the wind pushing back against the blades.

Tilt-Up – A tower that is hinged at the base and tilted up into position using a gin pole and winch or vehicle. Wind turbines on tilt-up towers can be serviced on the ground, with no climbing required.

Tip – The end of a wind generator blade farthest from the hub.

Tip Speed Ratio (TSR) – The ratio of how much faster than the windspeed that the blade tips are moving.

Torque – Turning force, equal to force times radius

Tower – A structure that supports a wind generator, usually high in the air.

Trailing Edge – The edge of a blade that faces away from the direction of rotation

Vane – A large, flat piece of material used to align a wind turbine rotor correctly into the wind. Vanes are usually mounted vertically on the tail boom. They are sometimes called a Tail.

Vertical Axis Wind Turbine (VAWT) – A wind generator design where the rotating shaft is perpendicular to the ground, and the cups or blades rotate parallel to the ground.

Wind Generator – A device that captures the force of the wind to provide rotational motion to produce power with an alternator or generator.

Windmill – A wind generator or wind turbine, also used to describe machines that pump water with wind power.

Wind Turbine – A machine that captures the force of the wind. It is called a “wind generator” when used to produce electricity. Called a “windmill” when used to grind grain or pump water.

Windward – Toward the direction from which the wind blows.

Yaw – Rotation parallel to the ground. A wind generator Yaws to face winds coming from different directions.

Frequently Asked Questions about Wind Power

How do you know what wind speeds are in your area?
visit http://www.eere.energy.gov/windandhydro/windpoweringamerica/wind_maps.asp

Can I find out the wind speed and prevailing wind direction of my site?
Yes, type in the location address using Google Earth (longitude and latitude). Then go to www.awstruewind.com and type in the Google Earth reference to get the wind speed and prevailing wind direction.

Does my local utility company buy back any power from my turbine that I don’t use?
Yes, a wind turbine can be combined with a “net meter” from the power company.

Can I combine a solar system with a wind turbine?
Yes, it is called a “hybrid” system and utilizes energy from both the sun and the wind.

Can I install a system that is not connected to any utility?
Yes, a “stand-alone” system can be used in remote locations where it would be too expensive to connect to the local utility. These systems can store the power into a battery bank with the power to be used when needed.

Did you know?
Wind turbines and wind farms: A single utility-scale wind turbine can prevent the emission of 1,500 tons of carbon dioxide (CO2) into the atmosphere per year. It would take a 500-acre forest to dissipate the same amount of Co2. An ideal location for a wind farm is one that has an average annual wind speed of at least 14 miles per hour. One large, 200-foot tall wind turbine tower takes up about ¼ acre of land; 90 percent of the land remains accessible for farming or other development. According to the American Wind Energy Association, wind plants now power the equivalent of 7.5 million average American homes. Wind power has the potential to supply more than one and a half times the current electricity consumption of the United States The Midwest has some of the highest wind power potential on earth. Iowa, Minnesota and Wisconsin all are in the top 20 states for wind power potential. Currently, wind power supplies about one percent of the nation’s total electricity production at a cost of about 2.5 cents more per kilowatt-hour, after federal tax credits, than electricity generated by standard sources.

Will Wind Power work for me?

Yes, if you live in an open area with average annual wind speeds of at least 9-10 miles an hour and your local zoning codes allow for a wind turbine. Rule of thumb: Turbines need to be 30 feet above the tallest structure and a clear area around them for 300 feet. Are there obstacles that might block the wind in the future? (large planned developments, growing trees etc.) If so, you will need to plan for this to ensure your turbine is not blocked off from your wind source. Contact your local utility company to learn if it is able to connect a wind turbine to its grid.

Contact us today to learn if wind power is right for you. For an on-site consultation, please call 801-748-0412.

How does wind power work?

Converting wind into energy is done by wind blowing through blades causing them to rotate. The blades capture kinetic energy and provide lift which is turned into torque. This converts wind energy into mechanical energy. One revolution of the blade produces 7 revolutions into a generator which produces electricity. Wind generated power is available for residential and commercial uses. Contact Green Power Solutions for an evaluation of your energy needs and to see if wind power is right for you.

CONTACT BRADLEY F. STEVENS | 801-748-0412 | brad@greenpowersolutionsinc.com
You've no-doubt seen the wind at work - being harnessed as energy via windmill. Wind can be converted to energy on many different scales according to your needs - from a vast, sprawling wind farm to a single structure generating enough power to supplement the energy needs of a small farm, residence or remote facility be it commercial, private or government-operated.

Wind power can be used in tandem with other renewable energy sources such as solar power. This is what is known as a hybrid system. This sytem is truly remarkable. It generates power far more efficiently than either of the two systems by themselves and is becoming more popular in rural areas simply because of its potential to create a self-sufficient energy environment.

Wind power works as a hedge against rising energy costs. If you're running a commercial farm, a country residence or remote government facility, wind-generated power will decrease the amount of money you pay for energy produced by traditional methods. Plus, most power companies will buy back excess energy produced by your wind system.

Many state and local governments also offer financial incentives in the form of rebates and tax cuts to make the purchase and installation of wind power more affordable.

Consult with Green Power Solutions for a more thorough explanation of benefits associated with the ownership and operation of a wind power system.

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