The Sustain miniHome: A Modern Green RV

We first featured the Sustain miniHome last year. It’s a compact green dwelling that fits on the back of a truck. Now there’s a video of the home, demonstrating it’s space-saving features…

Red LEDs to Grow Lettuce

Apparently red LEDs are 60% more efficient than fluorescent light when growing vegetables hydroponically. According to IEEE Spectrum Online: Of all the colors of the rainbow, red is lettuce’s favorite. Chlorophyll, the electrochemical engine of photosynthesis, runs on red photons. So if you are growing the vegetable indoors in a factory, why waste energy on colors you don’t need?

Road Runner Shower Head Has Unique “Pause” Feature

I’ve been testing the Road Runner low-flow showerhead, which is rated at 1.59 gallons per minute. Currently, it’s my favorite showerhead, beating out my previous favorites: the 2GPM Oxygenics showerhead, and the 1.75GPM Nigara Earth Massage showerhead. The Road Runner has a unique feature: it has a built-in sensor that detects when the water gets warm enough for showering (95° …

New LED Light Bulbs Can Replace 100W Incandescents

Update: See our latest post on LED Light Bulbs For The Home. I recently had the chance to test two state-of-the-art LED light bulbs from EarthLED. LED bulbs have many advantages over incandescents and compact fluorescent: they use very little power, they last 10 years or more, and they contain no hazardous substances. They are also tough: they can be …

The Best Electric Bikes For Commuters

Electric bikes are ideal for commuting because they allow you travel up to 30 miles in a stretch, and you are less likely to drenched in sweat when you arrive at your destination. Some models have motors that assist as you pedal, making your ride easier, especially when going up hills. Some models allow you to power the bike via …

First U.S City To Be Lit With 100% LEDs: Ann Arbor

Solar Powered LED Street Light by Sharp

Ann Arbor is on its way to being the first U.S. city to light up its downtown with 100% LED-based streetlights. The city expects to install more than 1,000 LED streetlights beginning next month. The city anticipates a 3.8-year payback on its initial investment.

Staber Washer: Highly Efficient

The Staber Washer is good washer if you are interested in saving electricity, water and detergent. It is the only top loading, horizontal-axis clothes washer made in the U.S. It operates in a similar way to an efficient front load washer, but you get top loading convenience. Compared to conventional vertical-axis agitator washers, the Staber uses 66% less water, 50% …

Solar Powered Air Conditioner Released

A company called GreenCore Air has released an air conditioner than can be powered by a single 170 watt solar panel. The GreenCore air conditioning unit can heat and cool a 600 square foot room. It runs on DC power, so there is no need to put an AC inverter between the solar panel and the air conditioner. This eliminates …

A Solar Flower Tower Rises In The Desert

This unusual solar tower was designed by Israeli architect Haim Dotan for AORA Solar. It is set to launch on June 24 in South Israel. The tower has 30 tracking mirrors (heliostats) that reflect sunlight towards the top of a 30-meter high solar tower. The top of the tower has a special solar receiver and a 100kw gas turbine. The …

Storing Solar Power In Molten Salt

Solar power is a truly efficient source of energy, but it tends to fluctuate, and, as you might know, it turns off at night. One clever way to alleviate this intermittence is to store solar energy in the form of heat using molten salt. An aerospace company, Hamilton Sundstra, has created a venture called SolarReserve, and it plans to have …