The turbine presented here has blades that are 0.5 meters in length, and the average home requires 1.2 KW. When we plug this into a wind power calculator, we learn that we’ll need an average wind speed of 37 mph. …
Tag: wind turbine
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
“Go-with-the-Flow” Wind Turbine
Here’s a concept for a new design in wind turbines. Contrary to what readers may have come to expect when they read that first sentence, this appears to make sense. The idea is based on the fact that, although today’s …
With Wind Turbine Generators, As Is the Case with All Things, There Is No Such Thing as a Free Lunch
What happens in the nacelle, that box-like thing shown here at the top of a wind turbine? In its simplicity, it’s where we convert mechanical into electrical energy, i.e., it’s the home of the generator. From there, however, things get …
The Joulebox
A reader asked my opinion on the Joulebox for operation in Chile and Latin America. I had never heard of this, but here is a video on the product, along with some observations.
From Guest Blogger Matt: Rooftop Wind Turbines
There is a lot of talk about green living nowadays, about energy efficient, sustainable homes, about reducing the consumption of energy by using and reusing natural resources and materials. This is all with the purpose of reducing pollution, waste, and …
Take a COOL Guess – the Fun Quiz on Clean Energy. Today’s Topic: Efficiency in Wind Turbines
Question: In physics, the Betz Limit is the top theoretic percentage of kinetic energy that can be extracted from a moving fluid, e.g., wind. It’s based on the fact that, if you took it all, i.e., stopped the wind dead, …
Beach Produces Occasional Discussions on Renewable Energy
I like to jog on a dog-friendly beach in Santa Barbara to get a bit of exercise and to take in the beautiful sights, sounds, and fragrances. After my run, I slow to a walk and often stop to talk with …
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From Guest Blogger Heather: Renewable Home Energy Tips For Your New Home
There are quite a few options after moving to utilize possible renewable energy sources around your home, such as wind turbines, solar panels and more. In most cases using solar panels is the popular choice for heat, lighting and electrical …
From Guest Blogger Heather: Renewable Home Energy Tips For Your New Home Read More »
From Guest Blogger Brain McGowan: Using Nickel Iron Batteries to Store Energy from Solar and Wind
Well my nickel-iron batteries have finally arrived from China on Friday afternoon. I have unpacked them and set them up and attached them to my system for their first charging. They are bigger than I imagined they would be — …
