Because commercial wind turbines capture more than 80% of the theoretically available energy from the wind, these people’s claim that their devices double the energy output is a lie.
Category: Wind Energy
Yet Another Small Wind Scam
Conventional wind turbines extract about 90% of the theoretically available kinetic energy from the wind, making this statement at left a bald-faced lie. In addition, there is a reason that small wind no longer exists: it’s inherently impractical; the output …
Tagged with: small wind
Hydro Wind Energy
I have to admit that I have a morbid curiosity about clean energy technologies that have no prayer of success, but whose founding partners vigorously hawk as the future of renewables, while they aggressively cultivate investors. “Hydro Wind Energy” writes: …
Flower Turbines Looking for More Investors
Other than common sense, there is nothing that prohibits investors from pumping cash into companies like Flower Turbines, that one day, owners claim, will build and sell devices that capture small amounts of wind energy. In fact, until about a …
A Return to Wind-Sailing Cargo Vessels?
Here’s a piece from Fossbytes, the same people who claim that the costs of maintaining EVs is greater than that of gas- and diesel-powered vehicles. A cargo ship named the Pyxis Ocean equipped with two 123-feet-tall WindWing sails embarked on …
Wind Harvest
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 …
Tagged with: Wind Energy
Wind Catcher
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 …
Tagged with: portable solar PV array
Is This Wind Turbine a Scam? Let’s Do Some Math.
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 »
Tagged with: wind turbine
Small Wind Hasn’t Given Up
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 …
Small Wind
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 …
Tagged with: small wind
