Archive for the ‘renewable energy’ category

The Army Goes Green, Say What?

August 4th, 2009

070622-f-0782r-004Isn’t it great when you selfishly do something and it turns out to be good for everybody? The U.S. Army can now add itself to that list.

When the Army announced they were going to build a 500 megawatt solar thermal plant in the California desert, it was hard to believe they were just trying to help the environment. And with good reason.  As altruistic as the Army is, it usually isn’t well known for its philanthropy. But if it helps the planet, I won’t stop them from building it.

As it turns out, sustainable energy is safer, suggests Dr. Kevin Geiss, the program director for the project. The Army hired private developers, Clark Enterprises and a Spanish company called Acciona, that will build this massive solar plant at Ft. Irwin, California.

Right now, like many military bases, most of its energy comes from diesel generators—with long, vulnerable lines back to the fuel source. Screw the green movement, solar just makes sense.

The solar plant at Ft. Irwin will require at least 1.5 billion dollars total, and should be ready to crank electrons by 2022. A hefty price, yes, but there is the potential to earn much of it back. Located conveniently right next to high capacity transmission lines, the army can then sell most of the excess energy to southern California; and since Ft. Irwin only needs 35 megawatts at its peak, that leaves 465 to shed.

So what could be next on the irony scale? The CEO of GM driving to work in a Prius?

Read more from Wired Magazine.

The Key to a Battery-Powered House

August 4th, 2009

house-battery-470-0709Imagine a life where you would never have to deal with PG&E ever again. Sounds good, right? Soon it can actually become reality.

Without a way to store their power, no number of solar panels will free a home from the electrical grid. Until now. Researchers at Utah-based Ceramatec have developed a new battery that can be scaled up to store 20 kilowatt-hours—enough to power an average home for most of a day.

An easy sell for solar users, but it could also allow the grid to stockpile energy during less expensive off-peak hours. The new battery runs on sodium-sulfur—a composition that typically operates at greater than 600 F.

“Sodium-sulfur is more energetic than lead-acid, so if you can somehow get it to a lower temperature, it would be valuable for residential use,” Ralph Brodd, an independent energy conversion consultant, says. Ceramatec’s new battery runs at less than 200 F.

Ceramatec says that batteries will be ready for market testing in 2011, and will sell for about $2000.

Read more from Popular Mechanics.

The Revolutionary Trashcan

July 28th, 2009

trashxHave you ever been too lazy to take out the trash so you just squish it down? Not wanting to go outside, you go to great lengths to squeeze the pizza box, milk carton and moldy leftovers all into that brimming under-the-sink waste receptacle.

Well, the city of Philadelphia has found a way to beat the system – as well as saving money and helping the environment.  The cheesesteak haven has replaced 700 public trash containers downtown with 500 high-tech compactors called BigBelly’s, which use solar power to condense trash, cutting collection trips by 75%.

Facing a $1.4 billion, five-year budget deficit, the city estimates it will save $875,000 a year with the compactors, bought with state grant money.

The BigBelly is powered by light, but it does not need direct light, said Richard Kennelly, VP of Marketing for BigBelly Solar, which is based in Needham, Mass. When trash gets to the top of the bin, it breaks an electronic beam that triggers a motor that pushes it down. As trash gets more densely packed, the machine senses the resistance and changes a light on the front of the bin from green to yellow.

The cans also have a wireless monitoring system that notifies the city when they’re full. In addition, the city is introducing curbside recycling containers next to many of the compactors.

Read more from USA Today.

The Last Place You Would Have Ever Looked For Fuel

July 22nd, 2009

n1216552007_8159Topping off your hydrogen-fueled car’s tank may soon have an entirely new meaning.

Ohio University scientists have developed an all-in-one machine to take urine, extract hydrogen from it, safely store precious-yet-dangerous gas and later extract it to generate energy. The researchers think their pee-powered prototype could finally make a case for practical hydrogen power.

From Discovery News: “One cow can provide enough energy to supply hot water for 19 houses,” said Gerardine Botte, a professor at Ohio University developing the technology.

Now that’s what we call a stream of energy.

Article by livescience.com

From Trash to Treasure

July 20th, 2009

dsc_0752_610x407Next time your boss sees you throwing away his memo, tell him you’re doing it to help the environment. Unload the break room fridge into the garbage, and you’ll power the office for an hour or two. Surely, your hungry co-workers can’t stay mad at you knowing you are just trying to do your part.

IST Energy Corp. has launched its new product, the GEM3T120, a waste-to-energy system in the consumer market that cleanly converts trash into electricity and heat.

Perfect for office buildings, hospitals, and much more, the GEM3T120 can process up to three tons of paper, plastic, food, wood and agricultural materials daily into pellets. At full capacity, the resulting energy from these pellets is enough to power and heat a 200,000 square foot building housing more than 500 people. With no disposal costs for the waste it processes and the energy produced, IST estimates the GEM creates an annual energy cost savings of about $250,000.

The GEM can save consumers big bucks, but the benefits of using the system are not only financial. The GEM is eco-friendly and carbon negative, diminishing greenhouse gases by 540 tons annually. In fact, the system powers itself with the clean energy it produces.

Stu Haber, president and CEO of IST Energy says: “The GEM has created a value for every bag of trash we generate – first by eliminating the need for disposal and then by converting it into energy.”

Read more from livescience.com

Oregon Tech Powers Up Geothermal Plant on Campus

July 13th, 2009

campusCollege students have long been at the forefront of political and environmental change. The bright young minds at the Oregon Institute of Technology are no different, demanding sustainability efforts put into place by their school.

The Oregon Tech administration finally complied, accommodating their students’ wishes by outlining a plan to build a $7.6 million geothermal power plant on campus.

The plant will become the sole power source for the school in a few years, making Oregon Tech the only university to be powered completely by geothermal energy.

Since Klamath Falls, the home of Oregon Tech, sits near a fault line, heat and energy can be easily extracted from the earth.

In addition, the city of Klamath Falls operates a geothermal heating utility, using the energy to heat buildings, melt snow on the streets, and more.

Read more from cleantechnica.com

The Coal Industry: Misguided Priorities

July 13th, 2009

clean coal housesAs the world shifts its ideological views from cheaper to greener, how do the folks running the coal industry, possibly the dirtiest business in the world, react? Do they clean up their product? Do they produce cleaner energies? Or maybe even donate money to an environmental foundation? Of course not.

Instead, the American Coalition for Clean Coal Electricity (ACCCE) spent a staggering $45 million last year on their “America’s Power” campaign, which many believe is a deception touting the benefits of so-called “clean coal.” And if that weren’t enough, the coal and electric industries spent a jaw-dropping $125 million lobbying against federal legislation promoting clean energy and a cap on global warming pollution.

As these industries spend millions running ads implying that carbon capture and storage (CCS) is here or just around the corner, the industry refuses to spend much of anything to turn its overheated rhetoric into reality. And it’s not for lack of funds. The 48 companies that make up the ACCCE front group earned a combined $57 billion in profits in 2007 alone, yet over a period of several years they have invested just $3.5 billion in research into CCS.

Find out more at alternet.org

U.S. Government Flowing $3 Billion to Renewable Energy Projects

July 11th, 2009

dollar-sign-money-bag-1The U.S. Department of the Treasury and the U.S. Department of Energy on Thursday announced that an estimated US $3 billion will be made available for the development of renewable energy projects around the country and made issued the guidance businesses will need to submit a successful application.

Funded through the American Recovery and Reinvestment Act (Recovery Act), the program will provide direct payments in lieu of tax credits in support of an estimated 5,000 bio-mass, solar, wind, and other types of renewable energy production facilities.

Read more