Feed Laws


SheerWind-Invelox is another sad entry into the ducted turbine hall of shame. Like many others it arrived in a blaze of media hype in the tech press. Unfortunately, SheerWind's pitch snared several unsuspecting high-profile clients, including the Nature Conservancy and the Michigan National Guard.

Videos of the Defunct Sheerwind-Invelox Ducted Device Still Up

January 15, 2019,   by Paul Gipe

Sheerwind-Invelox, a ducted-turbine fiasco, officially went bust in early 2018. Incredibly, there are a number of promotional videos still on line at and on vimeo. The latter is even more...[more]

Category: Sheerwind-Invelox

Video of SheerWind-Invelox in Iran

January 30, 2018,  

Daryoush Allaei extolling the wonders of his device in his native land. Note the location of the device--down below the ridge on which they are standing. Also notice that there are some real wind...

Category: Sheerwind-Invelox

The Nature Conservancy Clams Up on Ducted Turbine Debacle--Who Will Pay to remove it?

January 13, 2018,   by Paul Gipe

The Nature Conservancy (TNC), one of the nation's premier land preservation trusts, isn't talking about its failed investment in a ducted wind turbine debacle 1,000 miles from Hawaii.[more]

Category: Sheerwind-Invelox

FaceBook Comments on SheerWind Ducted Disaster

January 10, 2018,   by Paul Gipe

The following are comments to Another Ducted Device Dead: SheerWind-Invelox Bankrupt. They were so insightful I decided to repost them here where they are more easily archived.[more]

Category: Sheerwind-Invelox

Another Ducted Device Dead: SheerWind-Invelox Bankrupt

January 9, 2018,   by Paul Gipe

My inbox saw a flurry of emails 4 January 2018 to inform me that ducted turbine darling SheerWind-Invelox was bankrupt. While the event wasn't much of a surprise, it did take much longer than I'd...[more]

Category: Sheerwind-Invelox

SheerWind Invelox Demo Turbine in Need of Demolition

July 10, 2017,   by Paul Gipe

The Chaska, Minnesota promoter of a ducted wind turbine appears to have fallen on hard times. The fabric covering of the intake duct for their demonstration turbine is torn and in disrepair and the...[more]

Category: Sheerwind-Invelox

SheerWind-Invelox--Is the End Nigh for Another Ducted Turbine?

February 23, 2017,   by Paul Gipe

Is the end near for SheerWind’s Invelox ducted wind turbine? The problems with SheerWind’s design are coming to a head as its signature clients lose faith.[more]

Category: Sheerwind-Invelox, Inventions & Questionable Wind Turbines

Sheerwind Invelox: all hype, no substance

July 8, 2014,   by Mike Barnard

Sheerwind makes radically inappropriate comparisons between their long-disproven approach to wind generation and actually useful wind generation. The numbers show that they are likely about eighteen...

Category: Shrouded & Ducted Wind Turbines, Sheerwind-Invelox

Fantasy Wind Turbines or If It's Too Good To Be True . . .

July 20, 2009,   by Paul Gipe

Scams, Frauds, & Flakes--Tell-Tale Signs[more]

Category: News on Small Wind, Inventions & Questionable Wind Turbines, Shrouded & Ducted Wind Turbines, Vortec, Sheerwind-Invelox, FloDesign-Ogin, Elena Energie, Windtamer VortecFloDesign-Ogin

© 10/2011-05/2022  -  all rights reserved by  -  paul gipe  -   webwork by