Books
Wind
Feed Laws
Renewables
About

Wulf Test Field

BWC 850 at the Wulf Test Field in the Tehachapi Pass circa 1998. The 24 acre (10 ha) site near Oak Creek Pass in the Tehachapi Mountains was bequeathed to Paul Gipe by Ed Wulf in the spring of 1997 for furthering the development of small wind turbines.

There are two test stands at the site, one for micro-wind turbines, the second for mini-wind turbines.


Update

The Air Breeze installed in December 2007 continues to operate reliably and charge the site's batteries. In early 2016, the turbine continues to operate unattended. The turbine has operated more than eight years without intervention. One cable clip needed repair. One storage battery may have a bad cell. I left the site with the turbine charging the batteries and all the loads switched off to see if the batteries would recover their full charge.


In May, 2009 we inspected the site and the Selsam Super Twin had a blown diode.

We removed Selsam's Super Twin on October 31, 2009.


In the spring of 2008, we installed an unusual experimental turbine, the Selsam SuperTwin. The turbine uses two eight-foot rotors on a single shaft.


In December 2007 we removed the AirX s/n ABeta004 after it failed sometime in the fall. We replaced it with a Air Breeze s/n BR0001068 for testing at the request of SWP.


The Whisper H40 on the second test stand was removed and scrapped in June 2006.

Paul Gipe and Nancy Nies raising an Air 303 using a NRG tilt-up tower and a Griphoist at the Wulf Test Field in the Tehachapi Pass.


The site is adjacent to one of the world's largest concentrations of wind turbines and is very windy. The property also has a large erosion gully formed by a seep or spring. At the time the property was transferred the access road was bare and suffered from sheet and rill erosion during spring rains.

Since 1997, my wife, Nancy Nies, and I have installed several small wind turbines. We have also experimented with various erosion control practices and revegetation seed mixes to control erosion from the access road.

We have tested several micro- and mini-wind turbines at the Wulf Field: BWC 850, Air 303H, Air 403, AirX (various versions), LVM 6F, Marlec 910F, Ampair 100, and Whisper H40. Results of noise and power curve tests can be found by following the links below. The results are also summarized in Wind Power: Renewable Energy for Home, Farm, and Business published in 2004. Tests on the Air series of wind turbines (Air 303, 403, and Air X) by other researches have confirmed the findings first reported here.--Paul Gipe

Charts of Field Tests on Air Breeze BR0001068

February 1, 2011,   by Paul Gipe

We have operated an Air Breeze BR0001068 since December 2007. The turbine has performed well without any problems and significantly quieter than previous versions in the Air series of micro wind...[more]

Category: Wulf Small Wind Turbine Test Field Results

Small Wind Turbines Monitored at Wulf Test Field

December 6, 2009,   by Paul Gipe

Below is a tabular list of the micro and mini wind turbines tested at the Wulf Test Field and the type of tests performed. [more]

Category: Wulf Small Wind Turbine Test Field Results

Wulf Test Field Equipment Description

December 6, 2009,   by Paul Gipe

During the winter of 1998 through the spring of 1999, I installed equipment to measure the power curve of first mini and then eventually micro wind turbines. The description of this effort and the...[more]

Category: Wulf Small Wind Turbine Test Field Results

Photos of Small Wind Turbines Tested at Wulf Field

November 3, 2009,   by Paul Gipe

     [more]

Category: Wulf Small Wind Turbine Test Field Results, News on Small Wind

Selsam Super Twin Removal

October 31, 2009,   by Paul Gipe

The turbine had failed sometime in the spring of 2009. We were living in Canada for most of the spring and early summer. When we returned it was the fire season and we didn't drive onto the site...[more]

Category: Wulf Small Wind Turbine Test Field Results

Early Field Tests on Air Breeze BR0001068

December 27, 2007,   by Paul Gipe

We installed an Air Breeze at the request of Southwest Windpower in mid December. The turbine was provided by SWP at no charge. We are testing the turbine pro bono.[more]

Category: Wulf Small Wind Turbine Test Field Results

Air X ABeta004 Wulf Test Field Final Report

December 15, 2007,   by Paul Gipe

The Air X s/n ABeta004 was installed for noise testing in December 2003. It ran unattended until the fall of 2007 when it failed.[more]

Category: Wulf Small Wind Turbine Test Field Results

Wulf Test Field Panorama Views

November 27, 2007,   by Paul Gipe

The Wulf Test Field is situated at latitude 35° 4'20.64"N and longitude 118°23'40.12"W and is at an elevation of 4,600 feet (1,400 m) on the north facing flanks of the Tehachapi Mountains in the...[more]

Category: Wulf Small Wind Turbine Test Field Results

Whisper H40 Final Report

June 15, 2006,   by Paul Gipe

We returned to the site to remove the turbine for repair. The blades were removed without incident. However when removing the generator-yaw assembly the entire assembly came off in my hands without...[more]

Category: Wulf Small Wind Turbine Test Field Results

Doug Selsam's Super Twin at Wulf Field

May 1, 2005,   by Paul Gipe

Selsam's SuperTwin had operated unattended from March 2008 through sometime in the spring of 2009.[more]

Category: Wulf Small Wind Turbine Test Field Results

Summary of Power Curves Measured at the Wulf Test Field

December 8, 2003,   by Paul Gipe

December 8, 2003 by Paul Gipe For an explantion of the following chart see the article on measuring power curves. Though some of the turbines do not meet their manufacturer's advertised power...[more]

Category: Wulf Small Wind Turbine Test Field Results

Specifications of Small Wind Turbines Tested for Noise

November 4, 2003,   by Paul Gipe

Specifications of Small Wind Turbines at Wulf Test Field   Rotor Swept Rated Number Approx.   Tip Speed   Tip Speed Turbine Dia. Area Power of rpm   m/s   Ratio   m m2 W Blades @ 8 m/s @ 10...[more]

Category: Wulf Small Wind Turbine Test Field Results

Cruising World Noise Measurements

November 4, 2003,   by Paul Gipe

Cruising World Noise Measurements Turbines Rotor Swept Rated SPL* Tested Dia. Area Power @11 knots   m m2 W dBA Rutland 913 0.91 0.65 70 75 Ampair 100 0.92 0.66 50 78 Air 403 1.17 1.08...[more]

Category: Wulf Small Wind Turbine Test Field Results

Summary of Small Wind Turbine Noise Measurements in dBA

November 4, 2003,   by Paul Gipe

Summary of Small Wind Turbine Noise Measurements at Wulf Test Field in dBA   Hub Reference Slant     Sound   Projected   Projected Turbine Height Position Distance SPL   Power   100   to 45...[more]

Category: Wulf Small Wind Turbine Test Field Results

Comparison of Noise from Small Wind Turbines

November 4, 2003,   by Paul Gipe

Comparison of Noise from Small & Selected Medium-Size Wind Turbines                 ECN/Van der Borg   Difference Turbine Rotor Swept Rated Tip Speed Sound Power   Data Projection @ 8 m/s...[more]

Category: Wulf Small Wind Turbine Test Field Results

Air 403 Noise Measurements

November 4, 2003,   by Paul Gipe

Air 403 Ambient Noise.   Air 403 Noise. Linear regression trend and data for Air 403 charging a constant load. NREL's Arlinda Huskey notes that the data suggests turbine noise begins to level off...[more]

Category: Wulf Small Wind Turbine Test Field Results

Ampair 100 Noise Measurements

November 4, 2003,   by Paul Gipe

Ampair 100 Noise Ambient.     Ampair 100 Noise Charging.   Ampair 100 Noise Unloaded.   Ampair 100 Noise Summary. [more]

Category: Wulf Small Wind Turbine Test Field Results

Summary of Ambient Noise Measurements

November 4, 2003,   by Paul Gipe

    There was generally good agreement with the measurement of ambient conditions for the three seperate tests. Note that the ambient for the Ampair and Air 403 tests was higher than that for the...[more]

Category: Wulf Small Wind Turbine Test Field Results

BWC 850 Noise

September 28, 2003,   by Paul Gipe

BWC 850 Ambient Noise. Linear regression trend and data from one-minute Leq with the turbine parked. Copyright 2001 by Paul Gipe. All rights reserved.[more]

Category: Wulf Small Wind Turbine Test Field Results

AirX Noise Emission Measurements

January 30, 2003,   by Paul Gipe

Both versions of the AirX monitored at the Wulf Test were qualitatively and quantitatively quieter than the Air 403.[more]

Category: Wulf Small Wind Turbine Test Field Results

AirX Fails Power Curve Tests

January 29, 2003,   by Paul Gipe

Tests during 2002 at the Wulf Test Field demonstrate that the AirX fails to meet the manufacturer's power curve by a wide margin.[more]

Category: Wulf Small Wind Turbine Test Field Results

Air 303H and Air 403 Measured Power Curves

January 1, 2000,   by Paul Gipe

[more]

Category: Wulf Small Wind Turbine Test Field Results

Marlec 910F Measured Power Curve

January 1, 2000,   by Paul Gipe

[more]

Category: Wulf Small Wind Turbine Test Field Results

LVM 6F Measured Power Curve

January 1, 2000,   by Paul Gipe

  [more]

Category: Wulf Small Wind Turbine Test Field Results

Ampair 100 Measured Power Curve

January 1, 2000,   by Paul Gipe

  [more]

Category: Wulf Small Wind Turbine Test Field Results

BWC 850 Measured Power Curves

January 1, 1998,   by Paul Gipe

[more]

Category: Wulf Small Wind Turbine Test Field Results

Wulf Test Field Site Description

January 1, 1997,   by Paul Gipe

Since 1997 Paul Gipe and Nancy Nies have used the site to gain experience installing and operating small wind turbines, to measure small turbine performance and noise emissions, and to experiment...[more]

Category: Wulf Small Wind Turbine Test Field Results

© 10/2011-08/2018  -  all rights reserved by wind-works.org  -  paul gipe  -   webwork by www.beebox.com