Small Vertical Axis Wind Turbines

DAF-Indal[1] began working with Canada’s National Research Council and provincial utilities to develop Darrieus wind turbines using Canada’s abundant aluminum in the mid 1970s.[2]

They constructed about a dozen small prototype Darrieus turbines less than 5 meters in diameter and about 9 meters tall in the mid to late 1970s, rated variously from 4 kW to 12 kW.[3] One was installed in the Arctic for Canada’s Defence Research Establishment.[4] Another was installed in Texas at the USDA’s Bushland Experiment Station in a wind-assisted pumping test. Another was installed on Block Island, Rhode Island.[5] One was still standing—inoperative–outside Toronto in 2007.[6]

The Canadian fabricator, DAF-Indal, installed a second generation 50 kW Darrieus turbine in 1981 at the the Romero Overlook Visitor … Read more

Prototype Flowind 17 Meter 100 Kw Darrieus Google Maps

NREL’s Owen Roberts reports that FloWind’s prototype 100 kW Darrieus wind turbine installed in early 1982 is still standing inoperative … Read more

Because of my critical articles on Vertical-Axis Wind Turbines, Wind Harvest’s Kevin Wolf contacted me with background on what failed … Read more

So there you have it. Both Heirloom and AirLoom are variants of long-failing technological pathways. They are both massively mechanically complicated for little return. They are both funded by Bill Gates. They are both destined for the dust heap of history. It’s remarkable that anyone would give them money, and it’s remarkable how much fawning press they’ve received. In this case, history is both repeating itself, and rhyming.

Transpower By Vaughn Nelson In Other Wind Turbines Fig 6b

Transpower was another of those companies that thought they had a bright idea about how to harness wind energy in … Read more

While strolling through the Bakersfield Museum of Art this summer—yes, don’t laugh, we have an art museum here—I came across … Read more

Thilo Wirth visited the Grevenbroich test site west of Cologne 24 September 2023. He found that Agile Wind Power’s test … Read more

Agile Windpower Thilo Wirth 20230528 Crop

Agile Wind Power is removing its giant VAWT from the Grevenbroich test site. The dismantlement follows the second failure of … Read more

Swiss VAWT Vertical Sky has been re-installed at Germany’s Grevenbroich test site west of Cologne.