According to the title of an article published in The City of Lancaster’s Outlook (Fall 2009) magazine “The Future Looks Bright for Solar Power in Lancaster”.
My small town, all 475,000 of us, are at the forefront of solar energy! On August 5, 2009, eSolar unveiled the 5 MW (mega watt) demonstration plant known as Sierra SunTower. The solar power plant has24,000 mirrors and two giant tower house boilers. The boilers create what’s known as “thermal solar” which is said to be more cost-effective than the standard photovoltaic approach used in solar cells. The process creates steam to drive the turbine generators. The project was completed in 14 month time frame and has already begun to distribute power to Southern California Edison.
eSolar’s site says “Sierra SunTower will supply 5 MW of clean, renewable energy to the grid. This full-scale power plant, the only one of its kind in the U.S., produces electricity for Southern California Edison (SCE) and will power up to 4,000 homes.”
More sulfur dioxide and other acid gasses could be scrubbed from power plant emissions with a new technology developed by the Department of Energy’s Pacific Northwest National Laboratory. The new method, Reversible Acid Gas Capture, is a sustainable twofer: it doubles the amount of pollutants currently captured by the leading water-based scrubber, and it is far more energy-efficient. David Heldebrant, the scientist who headed the PNNL research team, points out that the technology easily lends itself to a retrofit for existing power plants. That’s good news for reducing pollution from coal-fired power plants, but it would be a mistake to call it a win for “clean coal.”
PacRim Coal’s plan to strip mine coal right through 11 miles of salmon-bearing streams in Alaska would destroy critical wetlands and headwater streams beyond the point of restoration, according to three new studies by scientists.
The salmon fisheries along the Chuit River would be severely damaged, so much so that the researchers say that restoration would be “virtually impossible”.
If the trend of extinguishing coal-fired plants continues, more and more mines will be shut down, not to mention mines that simply up and quit. But what is to be done with the abandoned mines? It isn’t as though we can just dispose of them at some hi-tech facility. These mines will become useless scars.
As a pollutant polycyclic aromatic hydrocarbons (or PAH’s as we call them in the business), are of concern because they have been identified as carcinogenic, mutagenic, and teratogenic (not good things if you were wondering). PAHs are created as a byproduct of the burning of coal, oil, and fossil fuels. Often they are of concern in urban areas where there is a higher carbon footprint, and it forms that nice cloud of yellow smoke you see floating over some of your major cities.
Now, new research out of Columbia University is showing that exposure to PAHs, can reduce neonate’s intelligence. The study performed in New York city where PAHs are in no short demand, showed IQ scores that were 4.31 and 4.67 points lower, respectively than those of less exposed children.
The discovery of a tiny bowl-shaped molecule which collects carbon dioxide right out of the air has beckoned some creative solutions to global warming.
By genetically engineering microbes to manufacture the handy molecule, scientists hope to make it useful as an industrial absorbent for CO2 capture. That could help clean up smokestacks from dirty coal-fired power plants, but it’s also possible that the molecules could be used for pulling carbon dioxide right out of the ambient air.
Written by Stacy Morford. Originally published on July 9, 2009, at SolveClimate.
In 2001, energy companies across the United States were busy drawing up plans for about 150 new coal-fired power plants. That year, Sierra Club launched its Beyond Coal campaign.
Today, the campaign celebrated its 100th defeat of a proposed coal plant.
“Coal mining is literally blowing the tops of mountains in Appalachia, coal burning is literally heating up our planet, spewing mercury across our landscape, and exposure to coal ash is wreaking havoc on streams and rivers across this country. So in every phase of the lifecycle, coal is filthy business,” Sierra Club campaign director Bruce Nilles said in announcing the milestone.
“We have persuaded the developers, the investors and the decision makers that we can do better than building dirty coal-fired power plants.”
I can see clearly now, the smoke is gone. Or prevented. Thanks to the Sierra Club, who celebrated a landmark in the fight against coal today. Thanks to advocacy in favor of ending coal, Intermountain Power decided to pull the plug on a coal plant in Delta, Utah, making the 100th plant to be either abandoned or prevented since the beginning of the 2001 coal rush.
The Delta plant “would have burdened Utah with more coal-burning pollution,” said Wayne Hoskinson, chairman of the Utah Chapter of the Sierra Club. “This opens the door for additional renewable projects, like the Milford wind development, allowing the state to still be an exporter of energy without the cost of worsened air quality and more mercury pollution.” It is exactly this shift from coal to renewables that the Sierra Club has been advocating since it began its Beyond Coal Campaign.
The abandonment of the Delta plant comes in the wake of Los Angeles Mayor Antonio Villaraigosa’s announcement last week that Los Angeles would be coal free by 2020 and is reason to celebrate. “Stopping one hundred coal plants is a huge milestone in our fight to end global warming,” said Bruce Nilles, Director of the Sierra Club’s Beyond Coal Campaign.
The Brindisi facility is Italy’s biggest coal-fired power station and the country’s largest single C02 polluter. The Greenpeace sabotage operation will entail blocking the coal conveyor belts and preventing coal from going into the plant.
Tell the world how you feel about our dirty coal addiction by wearing your message right on your arm: I’m Tired of Coal.
PacRim Coal’s plan to strip mine coal right through 11 miles of salmon-bearing streams in Alaska would destroy critical wetlands and headwater streams beyond the point of restoration, according to three new studies by scientists.
