Alternative Energy

Alternative Energy Diggs

Top alternative energy news stories, posted on Digg.com


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Alternative Energy Diggs for November, 2007

29Nov

The Implications of Biofuel Production for United States Water Supplies

Long post at one of the BEST climate blogs, with charts. Short version: There is not enough water supply to run the country (U.S.) on corn.read more | digg story
29Nov

What Geothermal Energy Could Do for Consumers

Geothermal power is expensive to tap into (though cheap to maintain) because it involves an exploration and drilling process similar to oil. However, it's as clean as energy comes, and a well-managed field churns up a steady stream of steam power day in and day out for decades at a time.read more | digg story
29Nov

Hydrogen From Biodiesel Waste

Scientists at the University of Leeds are turning low-grade sludge into high-value gas in a process which could make eco-friendly biodiesel even greener and more economical to produce.read more | digg story
29Nov

Turning Brownfields Into Biofuels

What if you could use plants to turn industrial waste sites into fertile, productive cropland? Better yet, what if you could produce biofuels in the process? By marrying bio-remediation and crop production, a group of Carnegie Mellon University graduates hope to produce biodiesel and ethanol while cleaning up the environment.read more | digg story
29Nov

Meet the Texas Wind Rangers

In a state known for its cowboy mentality & colossal CO2 emissions, it comes as a bit of a surprise that it can also brag about one more thing -- Texas leads the country in wind energy production. According to the experts, West Texas might possibly be the nation's bread basket for wind energy, due to its average wind speed of 17mph.read more | digg story
29Nov

Southeast Asia Paying High Environmental Price for Palm Oil

In its annual Human Development Report released yesterday, the United Nations Development Program (UNDP) highlighted the untenable environmental impacts of palm oil production. As a supposedly environmentally-friendly biofuel and healthier food ingredient, it is becoming clear that palm oil comes with a pretty heavy ecological cost.read more | digg story
29Nov

The first lithium motorcycle - an All-electric Chopper!

This all-electric, nearly-silent, one-off, custom motorcycle was created by the California Highway Patrol (CHP). While the Chopper holds an intimidating (and beautiful) V-twin motor, its insides have been gutted and replaced with an electric motor that holds six 48-volt lithium cell batteries.read more | digg story
29Nov

Film May Lead to Car Battery that is Lighter and Safer

It seems that everyone is getting into the battery business, one of them will succeed in making a smaller, lighter and less expensive battery. This development by ExxonMobil sound very promising.read more | digg story
29Nov

Harnessing Kinetic Energy: A microgenerator could power devices for troops

Soldiers who are packing multiple portable technologies could soon have less heavy lifting to do.read more | digg story
29Nov

New Fuel Cell Powered With Glucose From Biomass

A new type of fuel cell powered with glucose derived from biomass is described in the latest issue of the Inderscience Publication International Journal of Global Energy Issues. The experimental device works by using sunlight to convert the glucose into hydrogen to power the cell, which produces several hundred millivolts.read more | digg story
29Nov

Major Breakthrough For Super Efficient LED Lighting

A North Carolina company has achieved a major breakthrough on LED lighting that will dramatically lower costs. The company will also release the world's most energy efficient LED lights.read more | digg story
28Nov

America to Ethanol: “The Honeymoon’s Over Baby, Get to Work.”

For a while there, it seemed like everyone could agree on something. Subsidies for farmers,read more | digg story
28Nov

Cool Japanese Electric Bike Gets 110 Miles Per Charge

An intriguing electric bike, the EV-X7, has a magnetic motor built into its rear wheel. The motor is a hybrid between a electromagnet and a permanent magnet. It was designed by the Axle Group in Japan.read more | digg story
28Nov

The Wind Shade Roof

A swimming pool complex with wind turbines integrated into the roof. The turbines provide power for night lighting, pool heating and pumps.read more | digg story
28Nov

World’s First Building-Integrated Wind Turbines

Three wind turbine blades have been successfully installed on the Bahrain World Trade Center, a twin skyscraper complex. This is the first time that a commercial development has integrated large-scale wind turbines within its design to harness the power of the wind. The three massive turbines, measuring 29 meters in diameter...read more | digg story
28Nov

Map of Proposed High Speed Train Corridors for U.S.

With airports and highways more congested than ever, new steel-wheel and maglev lines that move millions in Europe and Japan have the potential to resurrect the age of American railroads. Interactive map shows where high speed trains would run, and the chart compares efficiency and eco-friendliness high speed trains vs. planes and automobiles.read more | digg story
28Nov

U.S. Could Cut Energy Use in Half in 18 Years

Economy would save $500 Billion: new public-private report. Energy efficiency is the cheapest, easiest, lowest hanging fruit to boost the economy and the environment.read more | digg story
28Nov

Green Finance: Clean Energy Investing

Want to invest in a portfolio that focuses on clean and renewable energy providers? Take a look at the ETF, PowerShares WilderHill Clean Energy (AMEX: PBW) based on the WilderHill Clean Energy Index, which has signifcant holdings in solar power companies, as well as other renewable energy products.read more | digg story
28Nov

Hydro-electric power: Dam’ed if we do, damned if we don’t

We look at the world's largest hydro-electric dam opened last year in China, and ask if the environmental impact of renewable power schemes is really worth it?read more | digg story
28Nov

Test Driving Fuel Cells and a Hydrogen Economy

Interesting article about hydrogen fuel cell powered cars and Iceland as a show case for advanced auto technology.read more | digg story
28Nov

Each Drop Is Pure With Solar Water Purifier

The solar water purifier collects heat from sunlight and uses it to evaporate unpurified water running through the panel.read more | digg story
28Nov

THE MAGLEV: The Super-powered Magnetic Wind Turbine

1 Maglev wind turbine, which uses full-permanent magnets to nearly eliminate friction by "floating" the blades above the base could power up to 750,000 homes. According to developers, the technology is capable of scaling to massive sizes, and the ability to generate power with winds as slow as three miles per hour.read more | digg story
28Nov

Solar-powered kayak attachment nixes need for paddling

Although this isn't the first time we've heard "solar-powered" and "kayak" used in the same sentenceread more | digg story
27Nov

Google Wants To Make Clean Energy Cheaper Than Coal

In an ambitious move, Google has created a new initiative called REread more | digg story
27Nov

Google plans to spend “hundreds of millions” on Green Energy

A new Google initiative, known as REread more | digg story
27Nov

Cleaner Nuclear Power?

Congress pushes for another look at thorium fuel, saying it could reduce the amount of high-level nuclear waste produced by reactors.read more | digg story
27Nov

Smarter energy storage for solar and wind power

Development of the first hybrid battery suitable for storing electricity from renewable energy sources such as solar and wind is now a step closer.read more | digg story
27Nov

China’s Biggest Solar Geek

You can't look at a roof in China's countryside without seeing a solar water heater, often a dozen of themread more | digg story
26Nov

Enertia Electric Motorcycle To Debut In December

Brammo Motorsports will be debut their electric Enertia Bike at the EV23 Show. The Enertia Bike was designed from the ground up to be a fully electric bike.read more | digg story
26Nov

Biomass Atlas to map and tap bioenergy potential

India ranks second in the world for biogas utilization and fifth in wind power. But the largest potential can be found in energy from biomass. In order to map and tap this potential, the Indian government is designing a 'Biomass Atlas', utilizing satellite data as inputs for geographical information systems.read more | digg story
26Nov

The New Velomobiles: Can They Replace A Car?

Check out the latest velomobiles on the market, these include electric assist motors and modified carbon shells. (A velomobile is a “bicycle car”, or more officially, a human-powered vehicle, enclosed for protection from weather and collisions.)read more | digg story
26Nov

Algae Hydrogen Balloon Fuel by 20/2 Collaborative

While the hydrogen fuel cell might not be viable for commercial vehicles for years, here’s some hope for the promising element.read more | digg story
26Nov

Making Fuel from Leftovers

Unsure what to do with your Thanksgiving leftovers? According to Penn State University (PSU) researchers, feeding table scraps to bacteria may be a clean and efficient way to produce hydrogen that can be used as fuel.read more | digg story
25Nov

Field testing of electric Smart ForTwo to start in London mid-December

In mid-December Daimler AG will start turning over about 100 battery-powered Smart ForTwos to customers in Central London for a large-scale field test.read more | digg story
25Nov

Debating the Merits of Energy From Air

Supporters see modern wind turbines not as Don Quixote’s ferocious giants but as elegant symbols of a clean-energy future. But as the industry expands amid global pressure to cut carbon emissions and fight climate change, an increasingly mobilized anti-wind farm lobby in Europe, North America and elsewhere is decrying the turbines as ugly, noisy...read more | digg story
25Nov

Recycled bicycle furniture

People are attached to their bikes - but happens when that cherished two-wheeled friend has outrun its course? Swedish designer Frida Kallstrom resolves this dilemma with unique furniture designs that will keep the memories of your favorite bicycle intact even after its well-worn parts have deteriorated.read more | digg story
25Nov

World’s Smallest Hydrogen Car - the H-Racer

Finally a hydrogen car that everyone can afford…. if only we could fit inside. Released earlier this year, the H-Racer is the world’s smallest hydrogen car (at 16cm x 7cm) and comes with a tiny price tag to match.read more | digg story
25Nov

How to make your own bio-diesel - Step by step instructions

If high gas prices have got you down, learn how to make your own bio-diesel with this step-by-step how-to.read more | digg story
24Nov

Crank Up a MP3 Player With a 1-Minute Wind Up

Without using any battery power, the player can also play videos (asv/mpeg5 format) on a bright 1.8-inch full color LCD screen, tune into FM radio stations, read ebooks and view photos with a slide-show functionality.read more | digg story
24Nov

Smart Eco-Youths in England Create Solar Blinds as Way to Help Power Homes

What if the blinds in hotels, homes and businesses around the world were able to collect solar energyread more | digg story
24Nov

Petravoltaic — Electricity from Rocks

Thomas Townsend Brown discovered an effect which may be related to the electrogravitic effects observed upon condensers at high voltage. He noted that certain dielectrics, and most notably certain types of igneous rocks, exhibited a weak electrical potential.read more | digg story
24Nov

A Highly Inefficient Thanksgiving

The fact is, our entire conventional food production and distribution system is highly inefficient.read more | digg story
24Nov

Nanosolar’s Breakthrough - Solar Now Cheaper than Coal!

NanoSolar's PowerSheet cells have reduced the cost of production from $3 a watt to a mere 30 cents per watt. This makes, for the first time in history, solar power cheaper than burning coal.read more | digg story
23Nov

The First Ever Solar Hydrogen House

A civil engineer, Mike Strizki, constructed the first ever solar hydrogen house that runs completely from “homemade energy”.read more | digg story
23Nov

Futuristic Eco-Island City Design

Wolf Hibertz wants to use the oceans as a future site for homes. The visionary designer has found a way to use sunlight to turn minerals in seawater into limestone. The limestone would be used to construct floating island homes.read more | digg story
23Nov

Removing Cars from People - Britain Imposes One Day per Week

The British Prime Minister has committed the nation to a ban on inessential car traffic every Wednesday. The goal is to promote alternatives to car travel and to decrease production of greenhouse gases.read more | digg story
23Nov

Why power freezers when it’s freezing?

A U.S. company selling a product called the Freeaire Refrigeration System is trying to convince companies with a walk-in freezer, cooler or cold storage that they can dramatically reduce their energy bills by cooling products with outdoor air.read more | digg story
23Nov

Sustainable water: falls from the sky

Paranoid about your drinking water? Want to make your castle more self-sufficient? Harvesting rainwater is a good way to escape your city's water system.read more | digg story
23Nov

Ferrari goes green, what does it all mean?

Ferrari succumbs to the pressure and commits to the reduction of its fleet's CO2 emissions. It's practically useless, but it makes us feel better -- doesn't it?read more | digg story
23Nov

The Post Peak Car

A fantastic account of how a 1970s Fiat 500 has been retrofitted with batteries and an electric motor to create the Post Peak Car. Be sure to watch the videos linked to at the bottom of the page.read more | digg story

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