New wind installations last year offset ghg emissions ~8 million cars

Wind power in the US can be as cheap or cheaper than coal power plants. Hopefully more industries enter this field to keep up w/ the increase demand.

http://www.worldwatch.org/node/5258
2006 Wind Installations Offset More Than 40 Million Tons of CO2
Worldwatch Institute – July 25, 2007 – 6:00pm
WASHINGTON, D.C.—The 15,200 megawatts of new wind turbines installed worldwide last year will generate enough clean electricity annually to offset the carbon dioxide emissions of 23 average-sized U.S. coal-fired power plants, according to a new Vital Signs Update from the Worldwatch Institute.[1] The 43 million tons of carbon dioxide displaced in 2006 is equivalent to the emissions of 7,200 megawatts of coal-fired power plants, or nearly 8 million passenger cars.

Global wind power capacity increased almost 26 percent in 2006, exceeding 74,200 megawatts by year’s end. Global investment in wind power was roughly $22 billion in 2006, and in Europe and North America, the power industry added more capacity in wind than it did in coal and nuclear combined. The global market for wind equipment has risen 74 percent in the past two years, leading to long backorders for wind turbine equipment in much of the world.

"Wind power is on track to soon play a major role in reducing fossil fuel dependence and slowing the buildup of greenhouse gases in the atmosphere," according to Worldwatch Senior Researcher Janet Sawin. "Already, the 43 million tons of carbon dioxide displaced by the new wind plants installed last year equaled more than 5 percent of the year’s growth in global emissions. If the wind market quadruples over the next nine years—a highly plausible scenario—wind power could be reducing global emissions growth by 20 percent in 2015."

Today, Germany, Spain, and the United States generate nearly 60 percent of the world’s wind power. But the industry is shifting quickly from its European and North American roots to a new center of gravity in the booming energy markets of Asia.

In 2006, India was the third largest wind turbine installer and China took the fifth spot, thanks to a 170-percent increase in new wind power installations over the previous year. More than 50 nations now tap the wind to produce electricity, and 13 have more than 1,000 megawatts of wind capacity installed.

As efforts to reduce carbon dioxide emissions accelerate around the globe, dozens of countries are working to add or strengthen laws that support the development of wind power and other forms of renewable energy. Rapid growth is expected in the next few years in several countries, including Australia, Brazil, Canada, France, and Portugal.

“China and the United States will compete for leadership of the global wind industry in the years ahead,” says Sawin. “Although the U.S. industry got a 20-year head start, the Chinese are gaining ground rapidly. Whichever nation wins, it is encouraging to see the world’s top two coal burners fighting for the top spot in wind energy.”


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[1]
Calculations are based on U.S. data: average capacity factor for new wind power capacity (34%, from American Wind Energy Association); average capacity factor for coal-fired power plants (72%, from North American Electric Reliability Council - NAERC); average CO2 emissions from U.S. coal-fired power plants (0.95 kg/kWh, from U.S. Energy Information Administration); and average coal-fired power plant capacity (318 megawatts, from NAERC).

 

The technology is already available to provide good alternatives. I think people are looking at 80% efficient solar cells and fuel cells to project when we can become fully sustainable. Another crucial source of energy in the near future will be biologically active fuels that are processed from our waste. I don't like corn ethanol or any derivative that uses our food supply because the supply and cost fluctuates and the social interests behind them aren't necessarily well intentioned.

Just because it's available doesn't mean that it's cheap, works well with the current infrastructure, or even popular (some claim the wind farms uglify the landscape). It'll be those hurdles and not the time spent on some mythical man on the moon discovery that will delay the eventual change.

 

I agree.

There's been proposals to kinetically store energy through use of flywheels with new materials that would cheapen through mass adoption. The efficiency of those suckers are over 80%. With power plants, they can be used to store energy during the night where the demand is lower and compensate for energy spikes during the day.

Combine these with an intermittent energy source, and small towns would not need to be connected to our lumbering energy grid.

Again, the problems these techs have are mostly caused by our 100 yr old infrastructure that is in serious need of upgrading, w/ or w/o new forms of energy generation.