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An Inexpensive Electric Bike Conversion Kit

by Justin Thomas •

An Electric Bike Convesion Kit by AmpedBike

Sales of electric bikes have spun into high gear this year — some merchants reporting a 6000% increase in sales. This is good news, because, for short trips, the efficiency and convenience of electric bikes is hard to beat. You may have heard that in the U.S.,  40% of all trips are made within two miles of the home, and 50% …

48

The Three Fundamental Flaws Of The Modern Toilet

by Justin Thomas •

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My unwinking, analytical gaze of efficiency now turns to the toilet. Unfortunately, the design of the modern Western toilet is highly inefficient, in fact, it is so inefficient that it is actually harming our health. The modern toilet has only been around for about 150 years — the “porcelain throne” was created to “give dignity” to the water closet, rather …

84

The Best LED Desk Lamps Of 2015

by Justin Thomas •

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Best Overall: TaoTronics Elune Desk Lamp The TaoTronics Elune is priced at $50 and it is probably the best value LED desk lamp available. This lamp has 30 LEDs that shine with 450 lumens at full power. The lamp has a slide touch switch on the top that allows you to adjust the brightness to any one of 7 brightness levels. …

60

LiFePO4 Batteries: A Breakthrough For Electric Vehicles

by Justin Thomas •

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Note: If you looking for AA-sized LifePO4, you can find them here. Soon, we’ll probably be seeing Lithium Iron Phosphate (LiFePO4) batteries being used in most electric cars and bikes. This new battery type is set to dominate the market. Based upon lithium ion technology, LiFePO4 batteries offer many advantages over lithium cobalt dioxide (LiCoO2) batteries which are commonly used …

4

7 Excellent Swap and Share Sites

by Tracy McGill •

Remember the 20th century when we were in a consumption frenzy? Terms like swap and share weren’t even on our radar. The economic downturn combined with our fundamental need to connect with others has started a swap and share movement that has been defined as Collaborative Consumption. Businesses are now using the efficiency of the internet and mobile technology to …

67

LED Grow Lights

by Justin Thomas •

A lot of readers expressed interest in using red and blue LEDs for hydroponic growing. These LED lights can be found at Amazon. It is, of course, more efficient to grow plants outside, but when this is not possible, LEDs are an efficient choice.

86

2010 Review Of Tankless Water Heaters

by Justin Thomas •

Tankless water heaters have been used in Europe and Asia for 50 years, and they are gaining popularity in the US. Right now they represent about 8% of new sales in the US. Tankless heaters, also called on-demand, flash or instant water heaters, qualify for a $300 federal tax credit. How efficient are tankless water heaters?

54

The Largest Wind Farm In The World: Horse Hollow

by Justin Thomas •

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.

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$2 Billion Wind Turbine Order Is Largest Ever

by Justin Thomas •

Texas oilman T. Boone Pickens has placed an the largest ever order for wind turbines: he ordered 667 wind turbines from GE, each costing $3 million dollars, making the total order $2 billion. Pickens plans to develop the world’s largest wind farm in the panhandle of Texas.

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New Rooftop Wind Turbine Tested: The Helyx

by Justin Thomas •

Recently, I wrote about the low-profile Aerotecture wind turbines, which are designed to be installed on the rooftops of city buildings. Now I’ve heard of another rooftop wind turbine under development. It’s called the Helyx Wind Generator, and it’s composed of two twisted wings of fiberglass that rotate around a vertical axis. The turbine is also colored bright green, which …