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Frequently Asked Questions

How much electricity does one wind turbine produce?

BWEA - Frequently Asked Questions
One 1.8 MW wind turbine at a reasonable site would produce over 4,7 million units of electricity each year, enough to meet the annual needs of over 1,000 households, or to run a computer for over 1,620 years.
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How much electricity does a wind turbine generate?

One 2 MW wind turbine on a typical site can produce enough electricity to meet the annual needs of over 1,000 households.
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How does a wind turbine make electricity?

The simplest way to think about this is to imagine that a wind turbine works in exactly the opposite way to a fan. Instead of using electricity to make wind, like a fan, turbines use the wind to make electricity. Almost all wind turbines producing electricity consist of three rotor blades which rotate around a horizontal hub. The hub is connected to a gearbox and generator, which are located inside the nacelle.
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BWEA - Small Wind and Frequently Asked Questions
Most wind turbines have three blades which face into the wind; the wind turns the blades round, this spins the shaft, which connects to a generator. A generator produces electrical energy from mechanical energy. See more information here.
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How much Electricity does the Acuscope Produce?

Equine Electro-Accuscope Therapy
The amount of electricity produced by the Acuscope is measured in microamps (millionths of an amp), an extremely tiny amount of current in comparison to the amount of electricity flowing from a wall socket. It has been scientifically proven that this level of current produces the most beneficial effect on the body's cells.
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How much electricity can one marine turbine produce?

Tidal power - Crest Energy
The amount of power each turbine will produce depends on the speed of the tidal flow, the size of the turbine rotor, the tidal cycle and the efficiency of the design. There are nearly two high tides and two low tides each 24 hours in the Kaipara. This means that each turbine will be in action for at least 15 hours each day. Spring tides generate more flow than neap tides, and the outgoing or ebb tide is more powerful than the incoming or flood tide.
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How much will a Scirocco wind turbine produce at my site?

FAQ
Short of installing a wind monitor (anemometer) at the exact site and, if possible the height as well, of the future wind turbine, and letting it log data for a year or so, it is impossible to tell exactly how much a Scirocco is going to produce for you. By the way, that is exactly what the big guys do before deciding on that 1 MW windmill. Having said that, there is a way to get a good idea of the wind potential at your site without ever leaving your chair.
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What is a wind turbine and how does it work?

Western Wind Energy
A wind energy system transforms the kinetic energy of the wind into mechanical or electrical energy that can be harnessed for practical use. Mechanical energy is most commonly used for pumping water in rural or remote locations - the "farm windmill" still seen in many rural areas of the U.S. is a mechanical wind pumper - but it can also be used for many other purposes (grinding grain, sawing, pushing a sailboat, etc.).
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How much of the time do wind turbines produce electricity?

BWEA - Small Wind and Frequently Asked Questions
A modern wind turbine produces electricity 70-85% of the time, but it generates different outputs dependent on wind speed. Over the course of a year, a small wind turbine in the UK will generate about 20% to 30% of the amount it would generate in a constant strong wind. This is known as its 'load factor' (or 'capacity factor').
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TVA: Wind Turbine Energy
Energy is generated when the wind speed reaches about 10 miles per hour, and a speed of 25 miles per hour allows the turbines to generate at their rated capacity. They shut down when the wind exceeds 55 miles per hour. Although wind speed varies according to the time of day, season, height above ground, and terrain, the proper placement of a wind turbine in a breezy location away from large obstructions enhances its performance.
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Can I connect the wind turbine to the grid to sell the electricity?

Navitron Renewable Energy General Price List
The wind turbines producing less than 1kW of power are low-voltage machines, designed for charging 24v-48v battery banks. You will need a 'grid tie inverter' to feed electricity into the mains supply. These are special inverters that must meet the requirements set out in the G83 electrical standard (http://www.iee.org/Publish/WireRegs/Commentary-updateJun03.pdf )However, grid-tie inverters are usually designed for input voltages of 200-600v, so most are not suitable for this application.
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How does a Wind Turbine save me money?

FAQ's
System owners no longer pay the utility company for the energy that their system produces! This means with a 1kw turbine you can save up to 30% off your electricity costs. The best part is that as the price of electricity continues to skyrocket your payback gets better and better.
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How long does it take to install a wind turbine?

FAQ's
The answer varies greatly on the size and complexity of the system but most residential systems can be installed in under a day . Commercial system installations vary more widely. No matter the size or complexity of the installation you can be assured that our teams will maintain a neat, clean and safe work environment withy the minimum possible disruption to you.
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Can I have my own wind turbine?

BWEA - Small Wind and Frequently Asked Questions
Small wind turbines are ideal for householders, communities and small businesses to use for on-site energy generation. There are a range of different types of small wind turbine models and thanks to their flexibility small wind turbines can be installed in most locations. Your individual site specifics (such as location, wind speed and local landscape) will eventually determine the best turbine type and size for your case.
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How does the wind generate electricity?

TailWinds wind energy questions
Giant blades that are mounted on a tower catch the wind and turn a shaft. The turning shaft spins a generator that makes electricity.
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How long does it take for a turbine to "pay back" the electricity used to manufacture it?

The comparison of energy used in manufacture with the energy produced by a power station is known as the "energy balance". It can be expressed in terms of energy "pay back" time, i.e. as the time needed to generate the equivalent amount of energy used in manufacturing and installing the wind turbine or power station. The average wind farm in the UK will pay back the energy used in its manufacture and installation in its first year of operations.
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How high does a wind turbine need to be installed?

FAQ
Installing a wind turbine on too short a tower is like installing solar panels in the shade. The wind is the 'fuel' for the turbine, starving it of fuel is going to result in disappointing production. Just like a car needs gasoline of a specific grade, your wind turbine needs nice, even wind. Turbulence will kill production, and given time, kill your wind turbine as well because of the additional stress it creates. Turbulence is generated by every obstacle that the wind hits.
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How much electricity does West Virginia produce?

CALP FAQ
A total of 89,749,562 megawatt hours of electricity were generated in West Virginia in 2004 (the latest data available) and only 28,919,000 megawatt hours (32% of total electricity produced) were consumed in West Virginia (www.eia.doe.gov/cneaf/electricity/st_profiles/west_virginia.html, www.eia.doe.gov/emeu/states/sep_fuel/html/fuel_use_es.html).
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How much power does the wind farm produce?

Desert Sky Wind Project
The Desert Sky Wind Farm has a power generation capacity of 160.5 megawatts (160,500 kilowatts), enough to supply about 40,000 average American homes.
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How big is a wind turbine?

Western Wind Energy
Utility-scale wind turbines for land-based wind farms come in various sizes, with rotor diameters ranging from about 50 meters to about 90 meters, and with towers of roughly the same size. A 90-meter machine, definitely at the large end of the scale at this writing (2004), with a 90-meter tower would have a total height from the tower base to the tip of the rotor of approximately 135 meters (442 feet).
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How can I install a mini wind turbine?

Frequently Asked Questions relating to Sustainability
Free energy from the wind is harnessed using a small wind turbine mounted on an outside wall of your house. The 'Windsave' kit includes a wind generator and the electrical equipment needed so that the system is simply plugged into your home power circuit. It also includes fitting. This has recently been promoted through B&Q DIY Stores and can also be arranged through local specialists.
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How can I connect my house to a wind turbine?

About PPC: FAQ
Positive Power Co-op's current focus is to develop large scale utility grade wind turbine projects and connect them to the electricity grid to add to Ontario's overall supply mix.
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How would I have a wind turbine installed at my home?

Canadian Wind Power Inc. Take Back The Power Solar, Wind, En...
Most dealers offer either complete turnkey (ready-to-operate) installations or the option to purchase direct from the factory and install the system yourself. The first option offers more customer support from the company. Self-installation offers significant savings and a hands-on understanding of the turbine. Prospective owners can discuss the options available with manufacturers to decide which method best suits their budget and technical skills.
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Who should consider buying a wind turbine?

Welcome to Fire Mountain Solar -Solar Electric Solar Panels ...
A residential wind turbine can be a relatively large device and is not suitable for urban or small-lot suburban homes. Except for very small wind turbines (i.e., with rotors one meter or less in diameter) on very small towers, a property size of one acre or more is desirable. The economics of a wind system are very sensitive to the average wind speed in the area, and to a lesser extent, the cost of purchasing electricity.
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Where should your wind turbine be located?

Welcome to Fire Mountain Solar -Solar Electric Solar Panels ...
You can have varied wind resources within the same property. If you live in complex terrain, take care in selecting the installation site. If you site your wind turbine on the top or on the windy side of a hill, for example, you will have more access to prevailing winds than in a gully or on the leeward (sheltered) side of a hill on the same property. Consider existing obstacles and plan for future obstructions, including trees and buildings, which could block the wind.
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Is a wind turbine difficult to install?

Welcome to Fire Mountain Solar -Solar Electric Solar Panels ...
Installing a wind turbine is a bit more involved than installing solar panels, but they are still relatively easy to incorporate into your alternative energy system. Some smaller turbines can be mounted to the rooftop of your house, but vibrations from the turbine may be transferred to the frame of the building. Rooftop turbine mounts often come with rubber vibration dampers to minimize this problem.
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What about solar panels or a wind turbine?

FAQ
Your boat spends all day in the sun and wind so in theory it is a good idea. However it is a relatively expensive option compared with paying for electricity from the mains. But you will be independent and very green!
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