Greg Pahl has just released a new book about Biodiesel. Pahl is the author of the informative book Natural Home Heating, which we featured previously. We like biodiesel because it a renewable fuel that can replace conventional diesel worldwide without the need for massive infrastructure change. Here is a review of the book: After setting… [Continue Reading]
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The Largest Building In The World To Be Green
January 22, 2008 by 18 Comments
Foster + Partners have just been granted preliminary permission to start construction on this volcano-shaped superstructure in Moscow, which will be dubbed “Crystal Island”. In terms of efficiency monolithic buildings like this seem unnecessary, but the proposed dimensions are amazing: it will be 1,500 foot tall with 26,909,776 foot squared of floor space, that’s enough… [Continue Reading]
The Largest Wind Farm In The World: Horse Hollow
April 23, 2007 by 54 Comments
What is the largest wind farm in the world? Well, right now it’s the Horse Hollow Wind Energy Center in Texas. This wind farm has 421 wind turbines that generate a total capacity of 735 megawatts. The wind turbines are spread across 47,000 acres of land in Taylor and Nolan County, Texas.
Rooftop Wind Turbines Ready For Commercial Use
April 16, 2007 by 93 Comments
Note: Images and Video © Lucid Dream Productions Wind turbines designed to be installed on rooftops are generating a lot interest lately. These compact turbines can be located on top of buildings, or attached to other parts of large structures like bridges. In turns out, though, that installing wind turbine in a city environment is… [Continue Reading]
The Best Rechargeable Batteries and Chargers Of 2013
January 13, 2012 by 156 Comments
In A Nutshell Overall, the best rechargeable AA battery is the Eneloop Pro (aka Sanyo XX Battery Powered By Eneloop). These batteries hold their charge for 12 months. They also have a high energy capacity (2500 mAh), and they perform better than similar high-capacity AAs (see my article for more information). Another good rechargeable AA is Maha’s Imedion battery, which is cheaper than the… [Continue Reading]
Skyscraper Creates All Its Own Energy
May 12, 2007 by 29 Comments
This skyscraper, to be built in Dubai, is called the Burj al-Taqa (‘Energy Tower’), and it will produce 100% of its own power. The tower will have a huge (197 foot diameter) wind turbine on its roof, and arrays of solar cells that will total 161,459 square feet in size. Additional energy is provided by… [Continue Reading]
Finding Inexpensive Non-Toxic Bedding
February 6, 2009 by 9 Comments
We spend about one third of our lives in bed. It’s a time when our body regenerates itself. We release about 3 liters of water while we sleep, and our bodies go through cycles of cooling down and heating up. We also absorb substances through our skin and through our lungs. So keeping one’s bed… [Continue Reading]
Windspire: Propeller-Free Household Turbine Gets Approval
February 9, 2008 by 57 Comments
We just featured the largest wind turbine in the world, now here’s something at the opposite end of the spectrum: a household wind turbine. In the last few years, we’ve seen a lot of mini-wind turbines that haven’t turned out to be very useful. But the Windspire turbine from Mariah Power sounds interesting. The Windspire… [Continue Reading]
Efficient Jeans: Those Made With Organic Cotton Or Hemp
November 4, 2008 by 13 Comments
Efficient jeans are still hard to find. Conventionally grown cotton requires more pesticides to grow than any other crop. The more efficient method is to grow organic cotton or hemp. The surf company Reef makes some good organic cotton jeans, like their Heritage Jeans (shown above), their Philosopher Jeans and Heritage Cords. The outdoor clothing… [Continue Reading]
Costa Rica Is 99% Powered By Renewable Energy
April 8, 2008 by 43 Comments
Costa Rica is a country rich with renewable energy. In fact, it gets about 99% of all its electrical energy from clean sources, and it’s aiming to be the first country to become carbon neutral (more about that below). Some of Costa Rica’s energy sources include geothermal energy, the burning of sugarcane waste and other… [Continue Reading]
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