Green Options

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Carbon capture and storage (CCS) technology will get a chance to prove itself next week at the 1,600 MW Schwarze Pumpe coal-fired power plant in Germany. The CCS demonstration will capture up to 100,000 tons of CO2 each year and bury it 3,000 m under a nearby gas field.

The scheme uses oxyfuel technology, which relies on burning coal in pure oxygen and CO2 instead of normal air. This results in a byproduct of almost pure CO2 that is bottled and pumped underground.

On the Big Island’s Hamakua Coast, the 24-megawatt Hu Honua Bioenergy Facility will convert locally grown biomass into electricity.  95% of the area’s residents signed a petition in support of converting the coal burning plant into a biomass facility. The converted facility is expected to stimulate local agricultural business, prevent tens of thousands of tons of green waste from ending up in landfills, and create hundreds of local [...]

The UNEP has recommended that fossil fuel subsidies should be scrapped, and that in doing so could not only decrease the amount of greenhouse gases, but also give a “not insignificant boost to the global economy.”

The recent news that the demand for coal is climbing rapidly around the world has left many of us deeply unsettled. And a new study from Australian energy consultancy ACIL Talisman doesn’t make things sound any more cheery.

The company believes that clean coal technologies such as carbon capture and storage are unlikely to be commercially available before 2020 unless major technological breakthroughs occur in the very near future.

However, the firm predicts that both geothermal and concentrated solar will be in widespread commercial use by the 2020 target date. But none of these technologies can squelch the CO2 coming from the 40% increase in coal consumption expected by 2030.

For renewable energy to be competitive with coal, natural gas, nuclear, and oil, it needs to be cost effective and reliable. Energy storage is key to achieving this.

Here’s why:

Lower Cost of Renewable Energy

High prices are one of the largest barriers facing renewables. Storage can help overcome this because not all watts are created equal. During peak demand on the electric grid, electric companies will pay more for electricity. Often the additional power needs at this time are supplied by natural gas or oil, which have higher fuel costs, yet can produce electricity at a moment’s notice. The opposite is true during times of low demand, when electricity costs are lower. Solar energy tends to correspond with these price fluctuations by generating large amounts of electricity during times of peak demand.

This is because air conditioning loads are largely responsible for increased electric demand. People tend to crank up the a.c. when the sun it out. Wind energy and other renewable energy sources however don’t necessarily correspond as closely. Storage will allow these energy sources to be fed to the grid during the most lucrative times.

State regulators in Colorado have given the green light to plans by Xcel Energy to shut down two coal-powered energy plants in the state, and build one of the world’s largest utility-scale solar-power facilities.

Despite the myriad recent examples of positive news in the alternative energy world, it’s important to remember that harmful non-renewables aren’t losing any ground. According to the US Department of Energy, 258 gigawatts of new generating capacity are needed to meet an expected 40% increase in consumption by 2030, and coal companies are stepping up to meet this need.

In the US, 17.5 gigawatts of coal-fueled generating capacity are under construction, and 7.3 more gigawatts are on the way.

If you ask Simran about compact florescent light bulbs, she may crack one open and cut you. Not really, that would scatter mercury, but she is loca for the light bulbs. Check Monday’s Huffington Post for the full version of this post.

People give you this whole rap about how easy saving the planet is. Change a light bulb and save the world. Yes and no. How about we consider it a start rather than an end destination?

Lighting accounts for about 20% of our electric bills. Traditional bulbs burn heat rather than light, so are extremely inefficient. Compact florescent light bulbs (CFLs) are 80% more efficient and can last up to 10 times longer than a traditional bulb. Last December, Congress voted to phase out the inefficient incandescent. By 2012, the 100-watt bulb will be history.

In the interim, environmentally-minded folks of all ilks are heralding the bulb. The virtual Stop Global Warming march reminds us swapping out three incandescent bulbs for CFLs will save us 300 lbs. of carbon dioxide and $60 a year. The Coalition On the Environment and Jewish Life suggests installing CFLs for Hanukkah as a way to redefine “energy-stretching light” and reflect environmental stewardship. Students in Pennsylvania sell light bulbs instead of candy to raise money for their schools. (Simran prefers candy.)

The American Southwest has some of the best solar resources on the globe. Nevada, with abundant land and sunshine is becoming a hot bed for the solar industry. The result is green jobs and billions of investment dollars.

Solar Panel Manufacturing

The opening of Ausra’s solar thermal power factory earlier this week in Las Vegas is a prime example. As the largest plant of its kind in the world, it employs 50 factory workers. At full capacity, the plant can generate 700 MW of solar panels, which could produce enough power for 500,000 homes. This quantity of panels would create an estimated 1,400 solar plant construction jobs.

The factory will produce giant mirrors and absorber tubes that are used for solar power plants. This technology uses the sun to generate heat and spin turbines, thus creating electricity. The giant mirrors follow the sun and reflect it onto fixed absorber tubes that are mounted above.

“Nevada is poised to be a leader in the clean energy revolution,” said U.S. Senate Majority Leader Harry Reid (D-NV). “This facility will help position our state as the premiere place to invest in these new technologies. As the factory expands operations and we continue to invest in clean energy, we’ll create thousands of good-paying jobs and keep our outdoors pristine for future generations.”

A Superior Court Judge in Fulton County, Georgia has ruled that construction of Dynegy’s Longleaf plant be halted until it is assured the plant will limit the amount of carbon dioxide it releases.

The original permit would have allowed the plant to emit 9 million tons of carbon dioxide annually, something the court said was unreasonable.

The court cited the Supreme Court’s 2007 ruling recognizing that carbon dioxide is a pollutant under the federal Clean Air Act.  It’s the first time any court has applied the ruling to an industrial source.

Commenting on the ruling, Bruce Nilles, director of the Sierra Club’s National Coal Campaign said:

“Coal-fired power plants emit more than 30% of our nation’s global warming pollution.  Thanks to this decision, coal plants across the country will be forced to live up to their clean coal rhetoric.”

For a lot of years, I’ve respected and admired Arizona Senator John McCain, and even though he is a Republican, he seemed to be more moderate than his right-wing compatriots.

That changed today when I read that he has proposed construction of 45 new nuclear reactors by 2030.  Adding insult to injury, he told a Missouri State University audience that he’d pledge $2 billion a year in federal funds to make clean coal a reality.  All in the name of reducing dependence on foreign oil and fostering a cleaner environment.