If you’ve ever wondered how the physicists who have been studying how to extract the most energy out of the wind for the last three hundred years, whose work has been greatly accelerated in the last few decades, these people …
If you’ve ever wondered how the physicists who have been studying how to extract the most energy out of the wind for the last three hundred years, whose work has been greatly accelerated in the last few decades, these people …
The people from Wind Catcher say their product is “perfect for camping, RVing, and off-grid living. It’s lightweight, easy to install, and produces enough energy to power your devices and appliances for days.” Of course, “easy to install” is a …
Assume the turbine presented here is 1.5 meters tall, as shown, and let’s say 0.5 meters wide, meaning that its swept area is 0.75 square meters if it were refashioned into a standard bladed turbine, spinning in a circle, with …
Is This Wind Turbine a Scam? Let’s Do Some Math. Read More »
Apparently, there is still a conference for small wind, defined as anything under 25 KW, to be held this year in Jutland, a remote part of Denmark (see map). Perhaps the site was chosen because it’s one of few places …
From SkyWind: Energy from wind, generated right where you need it – that’s our SkyWind NG. The first independently tested micro wind turbine is efficient, quiet and made in Germany. This is a fabulous example of the saying, “If you …
If you can be convinced that anything about these people’s claims is true, by all means, jump in with both feet. One such claim is that they generate some energy at wind speeds that are lower than those that activate …
After a second catastrophic failure, Agile Wind Power is removing its giant VAWT from the Grevenbroich test site. From this: The dismantlement follows the second failure of the test turbine (see photo). The Swiss company has been developing the mammoth giromill …
Massive Vertical Axis Wind Turbine (“VAWT”) Coming Down Read More »
Something about the picture here looks amiss, though it may be hard to put your finger on. Here’s the problem: the microscopically small amount of power that comes from small wind. Let’s say that the turbines shown here are 10′ …
A Wind Turbine on the Roof of Your House: What’s Wrong with this Picture? Read More »
Here’s another appeal to potential investors in this wind energy concept. The problem: The economics of small wind and small solar are completely different. Depending on where you live, putting solar on your roof makes sense. Putting this on your …