Green Options

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It had to happen, just when we were beginning to think that plug-in hybrid and electric cars were the best things since sliced bread, someone has intimated that there may be a health risk involved in driving those vehicles.

You remember, the power line scare back in the ’70’s (which really hasn’t gone away) and of course the more recent flap about cell phones emitting dangerous electromagnetic fields to the brain. In case you want to read more on these issues, a specific Google entry should suffice.Now, before you go somewhere else, hang on, there’s more to this electromagnetic field issue than you may think. That’s coming up, along with a short tip of the hat to the man who got us started on our way to the world we live in.

The giant wind turbines on the west coast of Ireland stand not only on the geographical limits of Europe, but also on the cutting edge of a revolutionary technology that makes wind power more reliable and valuable. The 32 megawatt (MW) Sorne Hill wind park will be Europe’s first to integrate a large scale battery back-up system that ensures a reliable supply of electricity regardless of how the wind blows.

“The battery enables large amounts of energy from wind or solar power to be stored, managed, controlled and sent into the electricity grid when it is needed. It doesn’t matter whether the wind is blowing or not; the battery makes the electricity output predictable and reliable,” said Tim Hennessy, CEO of VRB Power Systems, the battery manufacturer based in Vancouver, Canada.

Britain is not known for good weather. In fact, to be honest, the weather is lousy, and at certain times of the year only the most foolish Englishman ventures out without an umbrella.

For this reason, solar power has long been discounted in favour of wind on this blustery island where one’s neighbours are likely to raise a few eyebrows should one be so eccentric as to cover the roof in solar panels.

This was certainly on the mind of Ashley Seager when he laid out the princely sum of £8,500 ($16,900) in 2007 for the installation of a 3 kilowatt solar power generation system for his South London home. However, one year later and despite a year of weather that has been poor even by British standards, Ashley’s investment is beginning to pay dividends having generated 92% of the Seager household’s annual electricity requirement.

Buildings, according to calculations done by Architecture 2030, are responsible for nearly half of the total energy consumption in the United States. And 76 percent of the electricity generated in this country goes to the Building Sector. So while there are a range of steps that need to be taken in moving toward a more sustainable lifestyle, Buildings, and the energy they consume, need to be at the forefront of any considerations when moving toward greater sustainability.

Saving energy in buildings is both one of the easiest things that can be done, as well as one of the hardest. The principles for creating a building that needs less energy and operates more efficiently are well known. Most building technology is fairly basic and easy for even non-experts to understand. This makes it simple. We don’t have to wait for expensive, high tech solutions (though they can contribute greatly and will provide new flexibility and compelling possibilities for building better buildings in the future). Heavily insulated buildings can be easily constructed with readily available and well known technology. Adding more insulation to walls is easy, though there is a cost. Consumers and building owners need to become more aware of the long term costs of operating a building, and give consideration to more than just the initial construction costs. And overcoming economic considerations and taking a long-term view is the hard part.

Nicknamed, the “Dragon Power Station”, a new apparatus at the port harnesses energy from big rigs. Still in test stage, the new technology is expected to produce 5000-7000 kilowatts per day in this one location.

Photo courtesy: AEST, Inc. http://www.aesti.com

Alan Doering of AURI says agricultural residues and co-products aren’t waste, they’re potential new revenue streams to power the future.

AURI, or Agricultural Utilization Research Institute of Waseca, Minnesota, is a nonprofit organization that develops new uses for agricultural products and ag-processing co-products.

Alan Doering, an Associate Scientist with AURI, filled me in on steps being taken to utilize every bit of what used to be considered products of the waste stream.

Turkey droppings are fueling a power plant […]

Following are the top international environmental news for during the week of April 13 - 20. See an archive of top international environmental news here.

Asia

Two “Extinct” Species Discovered

First there was Swinshoe’s softshell turtle, and then the Javan Elephant. Is this more commonplace than we might believe?

Frankly, no. Despite the occasional hubbub over an animal science has lost track of– say, the Coelacanth– we’ve witnessed something extraordinary. Swinshoe’s turtle was previously believed to be extinct in the wild, with only three remaining in captivity, and therefore every one of these 300-pound turtles is a critical find.

Continue reading: Environmental Graffiti. Hot in media: Stumble Upon.

Some have noted that the renewable energy industry needs branding to confront the misconceptions surrounding it. Certainly marketing helped consumption of beef, milk, and pork increase dramatically. Imagine “Got Milk?” or “Milk: it does a body good” or “Pork: the other white meat” translated to renewable energy. Help may be on the way from the Renewable Energy Marketers Association (REMA), which will officially launch on Wednesday, April 23, at the […]

The powerful winter storms that moved across Europe in March precipitated a considerable spike in electricity supply on the European grid, thanks to continental wind farms.

Wind speeds of 100 mph were recorded across Europe and topped 135 mph at the Czech Republic’s highest mountain, Snezka. The surplus electricity on the grid, produced mostly by German and Danish wind farms pushed prices down by 12% on the spot market.

Traders buying and selling round-the-clock power reported that the ‘day ahead’ price in central Europe’s power market dropped to €49.5 ($76) per megawatt hour compared with €56 at the end of the previous week, according to a piece at Planet Ark. Unfortunately, the article also suggests that sudden drops in electricity prices on the spot market have little effect on end-use rates.

Some people are prepared to go to extraordinary lengths to promote environmental alternatives, demonstrating just what is possible in a world that has long been reliant on fossil fuels.

I recently wrote of a Swiss family who are at the half way point of an epic round the world eco journey travelling only by foot, bicycle and wind power. During this journey they aim to cross seven seas and climb seven of the world’s highest mountains.

Now, a Swiss doctor is undertaking an adventure of similar proportions. Matrin Vosseler, in a bid to raise awareness on climate change has walked across much of Europe and the Middle East, sailed a solar powered boat across the Atlantic, and is now walking across the United States from West to East.

This post is by Dr. Bill Chameides, Dean of the Nicholas School of the Environment and lead author of the forthcoming blog The Green Grok.

Everyone knows we need green energy to fight global warming. But there’s another big reason to tap renewable power sources –- not enough water.

Large swaths of the Southwest and Southeast are in the throes of debilitating droughts. North Texas and Oklahoma’s recent dry spell dragged on from 2003 to the spring of 2007 (more on U.S. droughts). Droughts have even wiped out entire civilizations like the Anasazi (see Jared Diamond’s Collapse and Eugene Linden‘s Winds of Change).

But today’s water problems are far more profound than those of the Anasazi. The huge quantities we use — unprecedented in human history — make us more vulnerable to drought. Our water woes stem from an ever-increasing demand for water to slake the thirsts of a growing population on the one hand and to irrigate crops to feed that same population on the other.

Few people appreciate that yet another sector is clamoring for more water — the power industry. Fortunately we have the technology to wean this one from our dwindling supplies.