Archive for the ‘Coal’ Category

Renewable Energy’s Gloomy Outlook

Friday, April 8th, 2011




At the Clean Energy Ministerial meeting in Abu Dhabi, the International Energy Agency yesterday released its first Clean Energy Progress Report. While the report grasps at some notable success stories – “at least ten countries now have sizeable domestic markets, up from just three in 2000,” the authors wrote – the general outlook is actually rather gloomy.

Almost half of new electricity demand over the last decade has been generated from coal, meaning that “achieving the goal of halving global energy-related CO2 emissions by 2050 will require a doubling of all renewable generation use by 2020 from today’s level.”
And how does the IEA suggest that renewable generation be doubled in the next nine years? Through increased investment in renewable technology – most importantly, so-called “clean coal.”

“Extensive deployment of carbon capture and storage is critical to achieve climate change goals,” the report claims, calling for around 100 large-scale CCS projects by 2020, and over 3,000 by 2050. There are five large-scale CCS in operation today – none of which are commercial deployments.

I’m sorry, but building 10 CCS plants a year over the next nine years is a fantasy. In 2009 I produced a report for Pike Research on CCS that punctured the notion that commercial coal plants will be retrofitted with carbon-capture systems in the near-term.

“The addition of CCS systems to power plants will likely add between 50% and 70% to the cost of producing electricity,” I calculated. The challenges include uncertainty about the costs of the technology, the lack of a pipeline network to transport CO2 to geological storage sites, and most notably the absence of a price on carbon emissions. “The intensive short-term financing, radical policy shifts, and R&D advances that would be required for multiple deployments of CCS in the next five years appear unlikely,” I concluded.

A look at the chart accompanying the IEA report tells you all you need to know about the flawed priorities behind the Agency’s projections. Under the scenario contemplated here, by 2050 expanded nuclear power will account for 6% of the carbon-emissions reductions required to reach the “Blue Map” goal for total worldwide CO2 emissions; CCS will provide 19% of the desired reductions. If you reverse those totals you’d have a much more realistic, and achievable, set of goals.

Meanwhile overall venture funding for clean energy is up: “Venture capitalists invested $2.57 billion in the clean technology sector in the first quarter,” Reuters reports, citing figures from Cleantech Group LLC, “up 31 percent from a year earlier, with most of the money going to companies involved in solar power.” That’s the most since 2008, before the financial crisis shoved the world economy into a ditch. None of that went into advanced nuclear power, although Khosla Ventures, one of Silicon Valley’s most admired and imitated venture funds, is a backer of TerraPower, which is developing traveling-wave reactors.

President Obama, having watched his energy policy go down in flames at the start of his administration, is readying a revamped and scaled-down plan to move away from fossil fuels. But the radical new budget proposal from Republican Rep. Paul Ryan, the chairman of the House budget committee, would essentially abandon all government support for renewable energy while preserving federal subsidies for fossil fuels.

The plan “rolls back expensive handouts for uncompetitive sources of energy, calling instead for a free and open marketplace for energy development, innovation and exploration,” Ryan wrote in an op-ed the week in The Wall Street Journal. Translation: forget about solar tax credits and government-support loans for wind-energy projects, and don’t touch subsidies to Big Oil.

So what is to be done? The plan outlined by Kirk on this blog is a great place to start. I would add that the steps in the plan – particularly No. 2, “Restart LFTR Research & Development” – should be thoroughly costed-out. In his July 2010 post on Energy From Thorium entitled “Energy Cheaper Than From Coal,” Robert Hargraves makes some initial calculations. A realistic, fully developed cost model for developing liquid-fluoride thorium reactors is the first step in demonstrating that advanced nuclear power is the only way out of our current dilemma. And that organizations promoting clean coal, and ill-founded goals for carbon capture and sequestration like those found in the new IEA report, are “talking moonshine,” to quote Lord Rutherford.

And, by the way: Abu Dhabi, the scene of today’s ministerial meeting, last month “broke ground on the proposed site of its $20 billion first nuclear plant, part of the emirate’s plan to diversify its energy mix and free-up more fossil fuels for lucrative export.” To where do you think they’re planning to export that excess oil?

China Initiates Thorium MSR Project

Sunday, January 30th, 2011

The People’s Republic of China has initiated a research and development project in thorium molten-salt reactor technology, it was announced in the Chinese Academy of Sciences (CAS) annual conference on Tuesday, January 25. An article in the Wenhui News followed on Wednesday (Google English translation). Chinese researchers also announced this development on the Energy from Thorium Discussion Forum.




Led by Dr. Jiang Mianheng, a graduate of Drexel University in electrical engineering, the thorium MSR efforts aims not only to develop the technology but to secure intellectual property rights to its implementation.



This may be one of the reasons that the Chinese have not joined the international Gen-IV effort for MSR development, since part of that involves technology exchange. Neither the US nor Russia have joined the MSR Gen-IV effort either.

A Chinese delegation led by Dr. Jiang travelled to Oak Ridge National Lab last fall to learn more about MSR technology and told lab leadership of their plans to develop a thorium-fueled MSR.

The Chinese also recognize that a thorium-fueled MSR is best run with uranium-233 fuel, which inevitably contains impurities (uranium-232 and its decay products) that preclude its use in nuclear weapons. Operating an MSR on the “pure” fuel cycle of thorium and uranium-233 means that a breakeven conversion ratio can be achieved, and after being started on uranium-233, only thorium is required for indefinite operation and power generation.




Currently there is no US effort to develop a thorium MSR. Readers of this blog and Charles Barton’s Nuclear Green blog know that there has been a grass-roots effort underway for over five years to change this. The formation of the Thorium Energy Alliance and the International Thorium Energy Organization have been attempts to convince governmental and industrial leaders to carefully consider the potential of thorium in a liquid-fluoride reactor. There have been many international participants in the TEA and IThEO conferences, but none from China.



Chinese energy demand is growing rapidly, and despite the world’s largest campaign of new nuclear construction, the vast majority of Chinese power generation still comes from fossil fuels. China has abundant supplies of coal, but their combustion has led to some of the worst air quality in the world. The ability of thorium MSRs to operate at atmospheric pressure and with simplified safety systems means that these reactors could be built in factories and mass-produced. They could then be shipped to operational sites with standard transportation. Their thorium fuel is compact and inexpensive. Chinese rare-earth miners have been rumored to have been stockpiling thorium from rare-earth mining for years, and if this is true, the Chinese will have hundreds of thousands of years of thorium already mined and available for use.

The Chinese now have the largest national effort to develop thorium molten-salt reactors. Whether other nations will follow is an open question.

Electrical Generating Capacity Graph

Monday, August 23rd, 2010

For some time now, I’ve been working on a simulation of our electrical generation system, and as part of that I’ve fed in a lot of data about nuclear and coal-fired powerplants into a database. The simulation isn’t quite finished yet, but I wanted to share a very interesting observation.

How many times have you heard that “Three Mile Island was when we stopped building nuclear reactors…”

I’ve heard it a lot. And it turns out to be very untrue. The incident at Three Mile Island-2 happened in March of 1979. Take a look at this graph:

Specifically, look how much capacity was added AFTER 1979, both in PWRs (pressurized-water reactors) and BWRs (boiling-water reactors). About half of all the PWR capacity we have today came about AFTER TMI-2, and nearly that much of BWR capacity. So we kept building and commissioning new nuclear reactors well after TMI-2, and even into the 1990s. But this graph also shows the results of scheduled shutdowns of nuclear reactors (all the dates came from the EIA website). Many of these reactors will get license extension but you can see the general trend.

Now look at this data:

There is no equivalent “EIA” website where you can look up the shutdown dates for coal-fired powerplants, and these aren’t even all the coal plants in the country, only the biggest ones. Look how much coal-fired capacity came online in the 1970s. Staggering, isn’t it? And even into the 1980s lots of coal-fired capacity came on the grid. But in the 1990s it nearly stopped.

I don’t know how many of these coal-fired plants will be shutdown in the future, but you can see where the trends are going with regards to coal and nuclear. We’re going to need to build nuclear plants fast just to “hold our ground”, and if we want to advance against coal we’re going to need to build a lot faster. That’s why we have to get capital costs down for new nuclear plants and speed their construction, and that’s where the advances inherent in the liquid-fluoride thorium reactor make such a profound difference.

Another Fossil-Fuel Tragedy, 11 missing

Thursday, April 22nd, 2010

11 workers are still missing and presumed dead after an explosion and fire on an oil-drilling platform in the Gulf of Mexico.

Once again, we see that fossil fuels kill. Regularly. So far in this still-new year we’ve had an explosion on February 7 at a natural gas plant killing six, a refinery explosion on April 2 killing five workers, a terrible coal mine explosion on April 5 killing 29 miners, and now an oil rig explosion on April 20 likely killing 11.

So coal, oil, and gas have killed 51 people, or nearly a person every other day. Is this acceptable in our modern energy-starved society?

There is a better way:

Seven Dead, More Missing in WV Coal Mine

Tuesday, April 6th, 2010

On a day when there was great rejoicing in China as over a hundred coal miners were rescued from a flooded mine after eight days, a tragic accident has struck again, this time in the United States. At least seven are dead and 19 unaccounted for at Massey Energy’s Upper Big Branch mine in Raleigh County, about 30 miles south of Charleston, West Virginia.

MSNBC: 7 dead in W. Va. coal mine blast

Massey Energy’s mines are no stranger to tragedy. At the Sago mine and later at the Crandall Canyon mine in Utah, miners lost their lives.

Why do we continue to accept the steady carnage of coal mining? The number of deaths in Chinese mines alone comes to approximately seven per day. Imagine feeding seven living, breathing human beings with families and children into the inferno of a coal furnace every day. If that thought sickens you, and I hope it does, that’s essentially what we doing right now.

Energy Cheaper than from Coal

Tuesday, March 23rd, 2010

I look forward to presenting Liquid Fuel Nuclear Reactors talk at the Thorium Energy Alliance symposium at the Googleplex next week. Part of that talk will remind us that the liquid fluoride thorium reactor is capable of producing energy cheaper than from coal.

Cap and trade and carbon taxes have faded from public attention. No agreement was reached in Copenhagen because the developing nations would not accept taxes that limited their potential for economic growth. From their point of view, the OECD nations achieved their wealth from cheap energy, from burning coal.

A way to dissuade nations from burning coal is to provide an economically superior alternative. If the LFTR can undercut the economics of coal, nations will build LFTRs and stop burning coal — all this without punishing carbon taxes and fraud-prone carbon credit trading. In the US the average cost of coal delivered to a utility is $40/ton, which works out to 2 cents/kWh just for the coal fuel. Depreciation and operating expenses double this. In China electric power is delivered at 5-7 cents/kWh to the industrial and commercial centers; I suppose [coal] power generation costs are half that. I propose a target for LFTR power of $0.03/kWh, from the power plant. This is an ambitious, achievable target, because of its unique, low cost attributes of compactness, intrinsic safety, and high temperature. I’ll present these next week.

Overpopulation, global resources, and wars over them are as critical to civilization survival as is climate change. Population is projected to climb from 6 to 9 billion people. Nations refuse to protect the few tuna left in the oceans. Mid-east wars over oil are fresh in memory.

Yet population growth is stable in the wealthy OECD nations; children are born at less than the population rate. Analyzing data from the CIA World FactBook shows that prosperity stabilizes population. At a GDP of $7,500 per capita, birthrates fall below the replacement rate. Fewer people competing for scarce global resources will stabilize the earth’s civilization.

Energy is a critical element of achieving prosperity. Prosperity also depends on food, education, health care, rule of law, a stable financial system, and good government. Consider the importance of electric power. It is essential to water distribution, sanitation, lighting, cooking, heating, refrigeration, communications, health care, and machinery. Prosperity helps people spend more time in productive jobs, becoming more educated, and having some leisure time to enjoy life. Freeing women from constant toils of everyday life allows them time to become educated, contribute to the paid workforce, and make choices about bearing children,

Providing power at $0.03/kWh makes energy affordable to developing nations. Another unique attribute of the LFTR is its ability to be produced in small sizes at affordable investment levels — $200 million for a 100 MW LFTR will meet the $0.03/kWh target. The CIA World FactBook data above shows that 2,000 kWh per capita per year suffices for modest prosperity. For comparison, the US uses 12,000 kWh per capita per year.

Energy cheaper than from coal is critical to civilization for two reasons: (1) stopping CO2 emissions from burning coal is a big step to controlling climate change, and (2) affordable electric power is key for developing nations to achieve modest prosperity and the lifestyles that include stable birthrates.

The TVA That Could Have Been

Monday, June 22nd, 2009


A couple of months ago, I felt like a nuclear “Indiana Jones” when a trip out to Iuka, Mississippi took me face-to-face with the ruins of a nuclear reactor. Or maybe it was more like an episode of “LOST” where they find a four-toed statue. But there I was looking at a huge, unfinished cooling tower, a turbine hall that looked pretty well completed but abandoned, and a containment dome whose rebar had been completely overgrown by vegetation.


Further investigation led me to discover that this was once TVA’s Yellow Creek Nuclear Plant, begun in 1978 and shut down in 1984 after the expenditure of billions of dollars. Yellow Creek never made a watt of power, but its shutdown broke the hearts of the local community, who had thought that the coming of the reactor would lead to an improvement in the local economy. Later efforts by NASA to build solid-rocket boosters at the site in the late 1980s also led to hope that was dashed a few years later when the effort was cancelled.

All of this got me curious about what TVA planned to do with nuclear power back in the early 1980s. And what I found out got me excited:

It looked like TVA planned to replace their coal plants with nuclear plants.

TVA had a very ambitious nuclear construction schedule underway in the late 1970s, and they had stopped building coal plants altogether. Here were the plants they planned to build:

Browns Ferry 1, 2, 3
Sequoyah 1 and 2
Watts Bar 1 and 2
Bellefonte 1 and 2
Yellow Creek 1 and 2
Phipps Bend 1 and 2
Hartsville 1, 2, 3, 4

The ones in blue are reactors that ended up getting built and operated.

The ones in green are under currently under construction.

The ones in red were cancelled. Mostly in 1984 but some in the years to follow.

I began to wonder what TVA would have been like if they had built these reactors. Then I correlated which coal plants they might have been able to shut down if they had gone ahead and built the reactors.

If they would have built Yellow Creek 1 and 2 they would have replaced the Colbert coal plant (1198 MWe, finished 1965) and the Allen coal plant (753 MWe, finished 1959). Colbert consumes 8,900 tons of coal per day and Allen consumes 7,200 tons per day.

If the Bellefonte 1 and 2 reactors were completed they would have been able to shut down the Widows Creek coal plant (1629 MWe, finished 1965). Widows Creek consumes 10,000 tons of coal per day and was the site of a gypsum leak in January.

If the Watts Bar 2 reactor had been completed it would have replaced most of the power generation of the infamous Kingston coal plant (1456 MWe, finished 1955). Kingston consumes 14,000 tons of coal per day and was the site of a huge coal ash spill on December 22, 2008.

The Phipps Bend 1 and 2 reactors would have replaced the Bull Run coal plant (870 MWe, finished 1967), the John Sevier coal plant (712 MWe, finished 1957) and the rest of Kingston. John Sevier is now targeted for shutdown and replacement by a natural-gas-fired plant because of a judicial judgement against the emissions at John Sevier. Bull Run consumes 7,300 tons of coal per day and John Sevier consumes 5,700 tons/day.

The huge Hartsville complex (4 reactors) would have replaced Gallatin (988 MWe, finished 1959), Shawnee (1369 MWe, finished 1957), and Johnsonville (1254 MWe, finished 1952). Gallatin consumes 12,350 tons/day, Shawnee consumes 9,600 tons/day, and Johnsonville consumes 9,600 tons/day. Building Hartsville would have made an incredible difference in TVA’s future.

This would have left Cumberland (2530 MWe, finished 1973) and Paradise (2273 MWe, finished 1970) as the only coal plants on the TVA grid, and it’s likely at some point these would have been replaced with nuclear too.

Grand total: 85,000 tons of coal each day that TVA wouldn’t be burning.

Now, I read an article today called “A new TVA energy strategy” that says that TVA should avoid nuclear power and focus on renewables. Well, I’ve got news for the author–TVA hasn’t built a coal or nuclear plant in 25 years and HAS been focused on renewables for 15 years now, and they haven’t shut down a coal plant yet!

It may be too late to finish Hartsville, Phipps Bend, or Yellow Creek, but it isn’t too late for TVA to continue to push hard on the nuclear option–not only light-water reactors, but on liquid-fluoride thorium reactors that can potentially be sited at the same locations as the existing coal plants and take over their generation duties.

Thorium Discussion Forum thread on TVA news