Windspire wind turbine.

	The Windspire Vertical Axis wind turbine is a new addition to the wind turbine lineup for Event Horizon. We have seen many vertical axis turbines through the years but none have been very impressive in output and have not been very reliable. After researching manufacturers of these turbines, talking to their customers and visiting installations, we can finally say we have found a vertical axis turbine that is high quality and produces its rated power. The Windspire is a 1.2Kw grid tie wind turbine that stands 30ft tall and is a very attractive addition to any property. And best of all, made in Michigan!

	clean. Simple. smart.^™

The Windspire^® wind turbine is an aesthetically designed vertical axis wind turbine that stands only 30 feet tall, and operates quietly while generating electricity for immediate use in your home or business.

The Windspire is also the lowest priced alternative energy system in the one kilowatt range on the market.

And it’s manufactured in the USA. Windspire invites everyone to explore the potential of clean energy from the natural power of the wind.

Wind Requirements
The Windspire wind turbine was designed to operate in areas with minimum average wind speeds of at least 10 mph (4.5 m/s) though it works best with average winds of 11 mph (5 m/s). A special Windspire for extreme winds is also available for locations subject to unusually high wind events. Wind speeds vary by location, even within a property. Your authorized Windspire Dealer can discuss site guidelines with you in more detail.

Windspire Specifications - Standard Unit 1.2kW

Annual Energy Production	2000 kWh/yr1
Rated Power	1200 watts2
Cut-in Wind Speed	8.5 mph \| 3.8 m/s
AEP Average Wind Speed	11.2 mph \| 5 m/s (AWeA Standard)
Rated Power Wind Speed	24 mph \| 10.7 m/s
Survival Wind Speed	105 mph \| 47 m/s
Standard Unit Height	30 ft \| 9.1m (pole extension available)
Total Weight	624 lb \| 283 kg
Unit Color	Soft Silver
Sound Output	6 dBA above ambient (15 mph wind, 6ft from base)
Warranty	5 Year Limited
Rotor Type	Vertical Axis - Low Speed Giromill
Rotor Height/Diameter	20 ft \| 6.1m /4.1 fT \| 1.2 m
Swept Area	80 sq ft \| 7.43 sq m
Max Rotor Speed	420 rpM3
Tip Speed Ratio	2.3
Speed Control	redundant electronic
Wind Tracking	instantaneous
Generator	High efficiency Brushless permanent Magnet
Inverter	inverter custom integrated Grid Tie 120 VAc 60 Hz
Inverter Certification	Meets ieee 1547.1; UL 1741
Performance Monitor	integrated Wireless Zigbee Modem
Foundation	poured concrete
Foundation Size	2 ft diameter by 7 ft base4
Rotor Material	Aircraft Grade extruded Aluminum
Monopole/Structure Material	recycled High Grade Steel
Finish	2 coats, corrosion-resistant industrial Grade paint
Coatings	rust Veto & Zinc olive Drab

notes: 1: Aep is based on the power curve and standard assumptions including a rayleigh wind distribution and 1400m air density. 2,3: performance is based on independent test data (site specific).

4: foundation size may vary for non-standard soil conditions or non-standard heights.

frequently Asked Questions

What is the difference between energy and Power?

At wind speeds greater than 8 mph, the Windspire^®will begin producing power, which is measured in Watts (W) or kilowatts (kW). power output jumps up and down as quickly as the wind changes speed, so the industry measures energy in kilowatt-hours (kWh), which is how many watts of power are consumed over a full hour. Your electric company charges you for energy usage based on a rate/kWh. over the course of a year, each 1.2kW Windspire will produce approximately 2000 kWh in 11 mph average winds to help offset the energy you require from the electric company. elevation will affect energy production.

How does it work?

Windspires operate with three sets of tall, narrow airfoils that catch the wind while spinning around a vertical axis. As the rotor turns, a generator conditions the energy into electricity. The grid-tie inverter then converts the electricity from a direct current (Dc) to an alternating current (Ac) that can be used for buildings and homes.

Are there tax Credits Available?

The federal Government provides an uncapped 30 percent tax credit for the total cost of your complete system, including installation. Many state and local municipalities also offer rebates, as do local power companies.

Are there specific Requirements for Potential Customers?

A Windspire site requires access to unobstructed wind and adequate space for installation. The Windspire also needs at least class two winds – ideally class three (an average of 11 mph) – and a tie to the power grid.

Is the Windspire a Grid-tie or Off-Grid Product?

The currently available Windspire is grid-tie, which requires the unit to be tied into the local utility grid.

Can I sell electricity back to the grid?

Some utilities offer net metering agreements that allow credit for excess power sent back to the grid.

Is the Windspire independently tested and Certified?

The Windspire is independently tested at Windward engineering in Spanish forks, Utah. This testing allows customers to know what level of power production to expect from specific wind ranges. The Windspire inverter received eTL certification as of March 2008 for the U.S. and canada, which includes UL and ieee testing.

Is it safe for Birds?

The Windspire rotates at a lower speed than most wind turbines and is more visible to flying birds. So far, we have had no reports of collisions – and we have had one report of a nest built under an active unit.

How does the Braking system Work?

The Windspire is designed to operate in wind speeds of 7-25 mph. At wind speeds higher than 27 mph the redundant electronic braking system will engage as a safety feature. While it may seem counterintuitive to engage brakes and therefore cease energy production during high winds, this is essential to the safety and reliability of the Windspire. per UL specifications, the Windspire will also engage the brake if the grid voltage or grid frequency falls outside the regulatory ranges.

Power Predictor

Please call or email for pricing or to order.