Testing Claims in Wind Power
The text here translates into English as “Little wind energy generator can make a house energy independent.” But doesn’t that seem like a stretch, just looking at it? If you were to put something the size of a small ceiling fan on your roof, let the wind blow through it, and convert that mechanical energy into electricity, does it seem feasible that it could power your HVAC, lighting, appliances, etc?
The average American house uses about 5000 Watts of power. The diameter of the device (per their website) is 0.75 meters, so let’s plug all this into our friendly wind power calculator, which uses the equation: Power = π/2 * radius² * wind velocity³ * air density * efficiency–and see what happens.
We find that we need a constant wind speed of 81 MPH, a hurricane, which, of course, exists nowhere on Earth, and certainly not in our neighborhoods, protected as they are, by other houses and trees.
In the end we conclude that, while this device may charge your cell phone, it’s certainly not going to power your house.
Craig,
Why bother with this nonsense while you studiously ignore one of the most exciting and profound changes in new clean technology in the last 20 years!
Dr James Tour at the Rice University laboratory is converting bulk quantities of just about any carbon source into valuable graphene flakes. (building blocks of graphene).
The process called “flash graphene” is quick and economical.
This technique can convert a ton of coal, food waste or plastic into graphene for a fraction of the cost used by other bulk graphene-producing methods.
This is an astonishing breakthrough as high grade graphene is quite rare and difficult to mine.
Although the process will produce graphene from almost any source including waste food, the highest grade is created from coal slag or coal emissions from coal fired power plants.
The present commercial price of graphene is $67,000 to $200,000 per ton depending on the grade and the potential market is vast.
This is the future!