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ETA Engineering, Inc.
4049 E. Presidio St., Suite 117
Mesa, AZ 85215
Phone: 480-966-1380
Toll Free: 1-877-964-4188
Fax: 1-480-966-1516
info@etaengineering.com
Southwest Windpower's Air-X vs. Air 403
powerAmerican Wind Energy Association

Solar Association Arizona Solar Energy Association

Solar CenterArizona Solar Center

Hydrogen American Hydrogen Association

Phoenix Electric Auto Association

Green Building Scottsdale Green Building Program

Note: Prices are subject to change without notice due to changes in other vendors' prices to us. These changes may arise from normal product development plus fluctuations in foreign exchange rates and commodity prices.

Frequently asked questions (FAQ).

Wind Turbine Tower Kits

Southwest Windpower has designed a series of tower kits customized for each of their products. Below is the NEW EZ Tower for all Air series turbines. Below that you will find more affordable tower kits for the Air series, as well as for the Air-X Marine. Below that you will find the towers for Southwest Windpower's Whisper series turbines.
EZ Tower for Air-X Series Turbines

The brand new 29' (8.8m) EZ Tower for all Air series turbines is the easiest tower to install ever!

Installs in two hours!
Ships in one box via UPS anywhere!
All materials included, even pipe!

Fully engineered to withstand 110 mph winds, galvanized tubing, cable, and hardware.

No concrete
No gin pole
No winching

Entire kit ships in 74" box, and weighs 65 lbs.

List Price: $499
Your Price: $459

Southwest Windpower Air Tower Exclusively designed for the AIR line of products, the AIR TOWER comes in a roof mount, 27' (8.1m) and 45' (13.5) heights.  These kits are Professional Engineer (PE) Certified.
27' Tower Kit 45' Tower Kit Roof Mount Kit w/Seal 9' Aluminum Marine Pole Set AIR Marine Tower Hardware Kit

For current pricing, call us toll-free 1-877-964-4188.

AIR Marine Tower Kits
AIR Marine Hardware Kit
  • All stainless steel hardware with self-locking nuts

  • Mast and stays are white powder-coated Aluminum

  • The 9' (2.7m) mast is 1.5" schedule 40 pipe.  The two 9' stays have an outside diameter of 1"

  • Specially designed vibration dampening mounts minimize noise

  • Designed to withstand hurricane force winds

  • Can be installed on transom or deck in just a few hours.

Whisper Tower Kits
Southwest Windpower Whisper

One of the most difficult challenges of the installation of a wind turbine is assembling and erecting a tower. Fortunately, the engineers here at Southwest Windpower have designed towers that are easy and safe to install. A number of heights for each product are available. Keep in mind, the larger the turbine the more complex the tower design. None of the towers require any kind of welding or machining and only the largest towers may require concrete. Most designs can be installed within a few hours to a day. Lastly, all work with Southwest Windpower towers is done on the ground.

You will NEVER need to climb a tower.

All of Southwest Windpower’s tower kits include everything you need with the exception of:
1) Pipe material
2) Anchors
3) Power wires

To keep your costs low and to consider site variables, these components should be purchased locally. When selecting the materials for the construction of your tower, please consider the following:

Pipe Material: For most conditions, we recommend a “schedule 40” pipe material. This offers a wall thickness of .125” which is strong enough to resist most wind conditions. If you are using fence pipe material, make sure you ask for “SS40”. If you live in an environment were your winds will never exceed 80 mph (140 km) then we suggest using a thinner wall material such as a “schedule 20”. In conduit material, this is called “SS20”.

Anchors: The anchors are by far the most difficult part of installing a tower. Once you have them in the ground, a tower installation gets really easy. There are various soil materials that you should consider prior to installing your tower. The type of anchor should also vary. Our owner manuals have recommendations based on soil type.

Power wires: Because of the size of turbine and variable length from the turbine to your batteries/inverter, it is impossible to know the proper wire size. Once you have understood the distance from the turbine to the battery, refer to the wind turbine’s owners manual for the proper wire size. Be sure to select the right type of wire for your environment.

VERY IMPORTANT: Prior to the installation of your tower, read the owners manual thoroughly and make sure you understand the environmental conditions at your site prior to purchasing materials. Manuals are free to download and review prior to purchase via the Southwest Windpower website.

 
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©2001-2008 ETA Engineering, Inc. All rights reserved. Last updated: January 17, 2008