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Exelon Corp. plans to invest $3 billion to boost the output of its nuclear plants as environmental regulations make competing coal-fired generation more expensive.

The investment is part of a plan announced Tuesday to spend $5 billion between 2010 and 2015 to increase generation capacity and reduce the company's carbon footprint.

The company already has the lowest carbon footprint of any major power producer because 93% its power is generated by its huge fleet of nuclear reactors, which emit almost no carbon dioxide. As Exelon increases its output of nuclear power, the company will close a pair of money-losing coal plants in Pennsylvania.

greennumbers nuclear power exelon

If the federal government established a standard requiring utilities to obtain 25 percent of their electricity from renewable sources by 2025, it would create 297,000 new jobs, according to a 2009 analysis by my organization, the Union of Concerned Scientists. Echoing our analysis, a February 2010 study by Navigant Consulting found that a 25 percent by 2025 standard would create 274,000 jobs.\n\nEnergy efficiency programs also would produce more jobs. A 2009 study by the American Council for an Energy-Efficient Economy found that a national standard requiring utilities to institute programs reducing electricity demand by 15 percent and natural gas demand by 10 percent would generate more than 220,000 jobs by 2020.

nuclear power renewables energy efficiency jobs greennumbers

Barack Obama's new dream of a nuclear renaissance faces a major reality check tomorrow when the state of Vermont is expected to shut down an ageing nuclear reactor with a history of leaks.

It would be the first time a state has moved to shut down such a reactor, and follows Obama's announcement last week of $8.3bn (£5.4bn) in loan guarantees for the construction of two new reactors in Georgia. White House officials said the money would help spur a burst of new construction – the first since the Three Mile Island meltdown.

obama nuclear power vermont

The Department of Health said late Monday there appears to be “a very large area” at the Vermont Yankee nuclear reactor contaminated with radioactive tritium, and contamination levels continue to rise.

Because the area is so big, according to William Irwin, radiological health chief, there are many potential sources of radioactive water at this particularly high concentration of tritium.

tritium radiation nuclear power nuclear reactors contamination

The Associated Press recently reported that at least 27 of 104 nuclear reactors across the United States are leaking potentially dangerous levels of tritium into the groundwater around the plants.

The scope of the problem surfaced after the recent discovery of a leak at the Vermont Yankee nuclear plant. According to the AP, new tests have shown that the levels of tritium in the wells at the Vernon, Vermont site are more than three-and-a-half times the federal safety standard.

nuclear power tritium greennumbers nuclear reactors groundwater

After decades as a forgotten commodity, uranium, the radioactive element used as the primary fuel for nuclear power, is hot property again. Agents for companies, many of them government-controlled, are fanning out across the globe to gain access to the powdery, radioactive ore

uranium uranium mining nuclear power

"AS THE world prepares for the largest investment in nuclear power in decades, owners of uranium mines last week raised the prospect of fuel shortages. To make things worse, the reliability of estimates of the amount of uranium that can be economically mined has also been questioned."

nuclear power uranium peak uranium

"The idea that a few new reactors can solve climate change is attractive – and completely unrealistic"

nuclear renewables renewable power nuclear power greenmonktv

"Waste from French power stations was being deposited in the open air in Russia, French newspaper Liberation said on Monday.

The paper said 13 percent of French radioactive waste produced by power group EDF could be found in the open air in a town in Siberia to which access is forbidden. The paper said it based its information on an investigation due to be broadcast on TV channel Arte on Tuesday."

edf nuclear power nuclear waste siberia greenmonktv

Building B30 is a large, stained, concrete edifice that stands at the centre of Sellafield, Britain's sprawling nuclear processing plant in Cumbria. Surrounded by a three-metre-high fence that is topped with razor wire, encased in scaffolding and riddled with a maze of sagging pipes and cabling, it would never be a contender to win an architectural prize.

Yet B30 has a powerful claim to fame, albeit a disturbing one. "It is the most hazardous industrial building in western Europe," according to George Beveridge, Sellafield's deputy managing director.

sellafield nuclear waste nuclear power greenmonktv

Research on nuclear fusion continues apace...

MIT researchers are keeping hope alive in the long quest for fusion energy. Researchers have advanced our ability to harnesses one of the most complicated forms of energy science in the universe, but add a word of caution that real scalable reactors could still be 'decades away' as all eyes now focus on the ITER in France.

fusion nuclear fusion nuclear power

The Hyperion Power Generation uranium hydride reactor will weigh fifteen to 20 tons, depending on whether you're measuring just the reactor itself or the cask—the container that we ship it in—as well. It was specifically designed to fit on the back of a flatbed truck because most of our customers are not going to have rail. It's about a meter-and-a-half across and about 2 meters tall. It will generate 27-30 Megawatts of electrical power from 70 MW of thermal power. This means 0.5 to 0.75 tons per MWe for the nuclear reactor.

I'm not a huge fan of non-renewable energy generation systems but I do recognise that nuclear will need to be part of the oil-less energy generation mix and this technology does appear to be one of the better nuclear options.

nuclear nuclear power uranium hydride