Posts Tagged 'Nuclear Power'

Solar thermal LCOE with and without storage

John Roles – excerpt from his analysis of CSP.

(…) From a broader perspective it appears that LFR technology is already at a slightly lower cost ( from the information and data I have been privy to) than trough technology. This is despite the fact that LFR technology is at a much earlier point on the cost development curve than troughs. It is reasonable then to conclude then that LFR will ultimately be the winner.

As an aside I do not understand the unreasonable push to incorporate high levels of storage onto solar thermal plant. The LCOE for solar thermal without storage will probably end up at around $150/MW. While I have not run any definitive numbers I believe that the marginal LCOE for additional storage will not be any lower than this. For plant without storage you are competing with a current spot price of maybe $50. This is bad enough but for the marginal addition of storage the LCOE will be $150 and the relative competitive spot price will be $20.

Why, it simply does not make sense. You are eroding the one factor, the match between output and demand, that is attractive about solar thermal. To use a mixed analogy, pigs are good for bacon why even bother puting lipstick on it.

Read the whole thing »

South Korea’s two newest nuclear reactors connected to the grid

WNN reports: South Korea’s two newest nuclear reactors, Shin Kori 2 and Shin Wolsong 1, have been connected to the grid.

Shin_Wolsong _(Daewoo)_200
Shin Wolsong 1 and 2 (Image: Dawoo)

Shin Kori 2 started up in December 2011 and was connected to the grid in January, joining Shin Kori 1 which entered commercial operation in early 2011. Meanwhile, Shin Wolsong 1 started up and was connected to the grid in January. Its sister plant, Shin Wolsong 2, is expected to start up before the end of 2012.

The two units are both South Korean-designed OP-1000 pressurised water reactors and are due to enter commercial operation by the middle of 2012. The grid connection brings the total number of operating reactors in Korea to 23.

Researched and written
by World Nuclear News

Nuclear safety projects launched in China

This looks like smart policy:

A series of research and development (R&D) projects has been launched by China’s National Energy Administration (NEA) to improve the country’s emergency response capabilities at nuclear power plants in the event of an extreme disaster.

The NEA said that the projects are aimed at improving safety-related technology employed in Chinese nuclear power plants, taking into account lessons learned from the Fukushima accident in Japan.

A total of thirteen R&D projects are to be conducted by China National Nuclear Corporation (CNNC), China Guangdong Nuclear Power Corporation (CGNPC) and the Institute of Nuclear and New Energy Technology in cooperation with Tsinghua University. Engineers and researchers will work to develop advanced nuclear power safety technology through targeted research and plant site analyses, the NEA said.

The R&D projects will include the development of passive emergency power supply and cooling water systems, as well as development of passive containment heat removal systems. The projects will also analyse the impact of multiple simultaneous external events and response measures. Research into beyond design basis earthquake and external flooding, as well as measures for the prevention and mitigation of used fuel accidents will also be conducted. Projects will also cover beyond design basis accident mitigation equipment and systems, while others are aimed at developing hydrogen control devices and emergency rescue robots. Other projects will study the monitoring and treatment of contaminated ground and water.

All the projects are expected to be completed by 2013. According to the NEA, implementation of the results will improve the safety of China’s second-generation nuclear power plant technology by lowering the probability of large early radioactive releases and reactor core damage.

Researched and written
by World Nuclear News

[From Nuclear safety projects launched in China]

MacKay: risk assessment for energy-related severe accidents

mackay_deaths_per_gwy.jpg

We made the mistake of lumping nuclear energy in with nuclear weapons, as if all things nuclear were evil. I think that’s as big a mistake as if you lumped nuclear medicine in with nuclear weapons. –Patrick Moore, former Director of Greenpeace International

UPDATE: I’ve bumped the timestamp on this post to 2012 for (my) ease of access.

In his marvelous “Sustainable energy without the hot air” David Mackay’s Chapter 24 Nuclear? examines nuclear power. From that chapter I extracted the memorable Moore quote above, and the graphic at left.

For my own reference I wanted to include David’s computation of deaths per GWy (gigawatt-year), which he has extracted from two of the studies we’ve already referenced (ExternE, and the Paul Scherrer Institute).

The graphic at left has translated those studies into David’s preferred units of GWy. Here’s an excerpt from David’s analysis of comparative energy generation risks:

(…) When quantifying the public risks of different power sources, we need a new unit. I’ll go with “deaths per GWy (gigawatt-year).” Let me try to convey what it would mean if a power source had a death rate of 1 death per GWy. One gigawatt-year is the energy produced by a 1 GW power station, if it operates flat-out for one year. Britain’s electricity consumption is roughly 45 GW, or, if you like, 45 gigawatt-years per year. So if we got our electricity from sources with a death rate of 1 death per GWy, that would mean the British electricity supply system was killing 45 people per year. For comparison, 3000 people die per year on Britain’s roads. So, if you are not campaigning for the abolition of roads, you may deduce that “1 death per GWy” is a death rate that, while sad, you might be content to live with. Obviously, 0.1 deaths per GWy would be preferable, but it takes only a moment’s reflection to realize that, sadly, fossil-fuel energy production must have a cost greater than 0.1 deaths per GWy – just think of disasters on oil rigs; helicopters lost at sea; pipeline fires; refinery explosions; and coal mine accidents: there are tens of fossil-chain fatalities per year in Britain.

So, let’s discuss the actual death rates of a range of electricity sources. The death rates vary a lot from country to country. In China, for example, the death rate in coal mines, per ton of coal delivered, is 50 times that of most nations. Figure 24.11 shows numbers from studies by the Paul Scherrer Institute and by a European Union project called ExternE, which made comprehensive estimates of all the impacts of energy production. According to the EU figures, coal, lignite, and oil have the highest death rates, followed by peat and biomass-power, with death rates above 1 per GWy. Nuclear and wind are the best, with death rates below 0.2 per GWy. Hydroelectricity is the best of all according to the EU study, but comes out worst in the Paul Scherrer Institute’s study, because the latter surveyed a different set of countries.

David then moves on to one of my favorite topics, which he terms Mythconceptions, which include “nuclear involves huge amounts of concrete and steel whose creation involves huge CO2 pollution” and “Isn’t the waste from nuclear reactors a huge problem?” For those discussions please visit the site and buy the book! Which is now available in a Kindle version for only USD $27, the best book value I have ever purchased.

For more on Dr. MacKay and the book please see my Oct 2009 post.

Is nuclear power green?

Zachary Moitoza has been studying energy policy since at least 2005 (when he started at University of Oregon). He is the author of the book “The Nuclear Economy: Why Only Nuclear Power Can Revitalize The Economy And Environment,” a realization he came to after years of careful research on the energy scene.  

Here is an excerpt of Zachary writing for the Eugene Oregon Examiner

When people think of nuclear power, they typically think of something that is somehow unnatural, that is far from “green.” Wind, solar, biofuels, “renewables” are supposed to be green, right? However, upon careful scrutiny, we realize that “renewables” are not only not green—they’re worse for the environment than fossil fuels. And nuclear, in contrast, is not only the one and only “green” energy resource available, it is the one alternative available to fossil fuels, which are peaking and going into inexorable decline. When this gets out later this decade, it will become a scandal.

(…) We need energy sources that can be turned on and off, energy sources that can be used when we want to use them. Wind peaks at night, when demand for power is less, and takes up 500 square miles of land to produce as much (intermittent) power as one 1.5 gigawatt nuclear plant. If you don’t store wind and solar using lead-acid batteries, the power is useless, except for something that is always on, like a hot water heater. If you store it, the EROEI is negative, like biofuels. Wind and solar are like the electricity sector’s equivalent of the corn ethanol scam. Hydro and geothermal can’t be expanded.

(…) A growing number of environmentalists have come to learn the error of their former ways, and have been converted to supporting nuclear power. James Lovelock, Stewart Brand, Patrick Moore, James Hansen, Mark Lynas, and Barry Brook are among the recent converts. Hansen and Brook in particular were convinced by the promise of the Integral Fast Reactor, a passively safe nuclear breeder reactor unlimited by fuel supplies, which a waste product sharply reduced both in radioactive lifetime and amount.

So, we see that appearances can be deceiving. Only nuclear is green, and nuclear is the only alternative to declining fossil fuels. Conservation will be key for decades to come, as the transition is made to breeder reactors. Fast breeder (or simply ‘fast’) reactors require just one ton of uranium fuel per gigawatt-year, whereas light water reactors require as much as 180. The main reason why nuclear wins is density: nuclear fuel is literally ten million times as energy dense as fossil fuels. And nature loves density.

Read the whole thing »

Nuclear waste: in Sweden, Finland, USA communities want spent fuel storage facilities

There’s a secure solution to America’s energy problem buried under booming Carlsbad, N.M. If only Washington would get out of the way.

French and US polls that I’ve read consistently show that people who live near nuclear power stations want to have more nuclear, not less. That perspective is almost impossible to find in the usual sensational media coverage. But this recent Forbes article is different. Carlsbad New Mexico is the site of the Waste Isolation Pilot Plant (WIPP ).

(…) Since opening in 1999, WIPP has operated so smoothly and safely that Carlsbad is lobbying the feds to ­expand the project to take the nuclear mother lode: 160,000 more tons of the worst high-level nuclear waste in the country

(…) Carlsbad has a different take. “It’s really a labor of love,” says Forrest. “We’ve proven that nuclear waste can be disposed of in a safe, reliable way.”

This attitude—“Yes in my backyard,” if you will—has brought near permanent prosperity to this isolated spot that until recently had no endemic economic engine. Unemployment sits at 3.8%, versus 6.5% statewide and 8.5% nationally. And thanks to this project—euphemistically known as the Waste Isolation Pilot Plant, or WIPP—New Mexico has received more than $300 million in federal highway funds in the past decade, $100 million of which has gone into the roads around Carlsbad. WIPP is the nation’s only permanent, deep geologic repository for nuclear waste. The roads have to be good for the two dozen trucks a week hauling in radioactive drums brimming with the plutonium-laden detritus of America’s nuclear weapons production.

As recommended by the Obama administration’s blue ribbon commission, community involvement is essential to the successful siting and operation of a spent fuel storage facility. A similar story is found in the Swedish town of Östhammar a town of 22,000 inhabitants a two-hour drive north of Stockholm. Spiegel May 19, 2011 Why One Swedish Town Welcomes a Waste Dump. The towns of Östhammar and Oskarshamn competed for the new storage facility:

(…) For years, local officials were worried that another town with a nuclear power plant — Oskarshamn, which is 465 kilometers away and was also vying to be the site of the repository — would end up winning the contest. The two towns decided to make a deal. The company building the repository, Svensk Kärnbränslehantering (SKB), would provide two billion Swedish krona, or about €223 million ($312 million), of which the runner-up would receive 75 percent and the winner only 25 percent.

Some might say it was an attractive incentive for one of the towns to step on the brakes and come in second place.

The decision was made on a rainy summer day in 2009. Edelsvärd remembers the day very clearly. Östhammar town officials were sitting at the town hall, watching a live broadcast of the showdown in Stockholm. When the name of their community appeared on the screen, Edelsvärd says that “people weren’t cheering the way they would at a football match, but you could sense the feeling of elation in the room. It was a very Swedish way of expressing joy.”

Another case of good decisions resulting from competent community consultation is Finland’s new repository at Onkalo.

Please remember that what the media and Greenpeace call “nuclear waste” is actually incredibly valuable fuel for power generation. E.g., in the case of England, the UK DECC chief scientist David MacKay supported estimates that all of England’s electrical needs can be supplied for 500 years by burning the existing UK “waste”. This is in the context of Duncan Clark’s article on deployment of fast reactors such as the GE Hitachi PRISM being proposed to burn the UK “waste plutonium”.

(…) According to figures calculated for the Guardian by the American writer and fast reactor advocate Tom Blees, this alternative approach could – given a large enough number of reactors – produce enough low-carbon electricity from Britain’s waste stockpile to supply the UK at current rates of demand for more than 500 years.

MacKay confirmed this figure. “As an upper bound on what you could get from those resources in fast reactors I think it’s a very reasonable estimate. In reality you’d get all kinds of issues so you wouldn’t achieve the upper bound but I still think it’s a reasonable starting point.”

Nuclear vs Nuclear vs Nuclear

Another terrific George Monbiot essay. David MacKay has gone public with burning the UK nuclear ‘waste’. George explains that we have three technology choices to elect for waste: bury it, MOX recycle, IFR full recycle. George favors the GE Hitachi full reprocessing package; i.e., the IFR design.

Here’s a quick excerpt — more tomorrow.

We can’t wish nuclear waste away: we must choose one of three options for dealing with it.

By George Monbiot. Published on the Guardian’s website, 2nd February 2012

Duncan Clarke’s article in the Guardian today should cause even the most determined anti-nuclear campaigner to think long and hard about the choices that confront us. He reveals that David McKay, chief scientific adviser to the government’s energy department and author of Sustainable Energy: Without the Hot Air, has endorsed a remarkable estimate. The UK’s stockpile of nuclear waste could be used to generate enough low-carbon energy to run this country for 500 years.

If the material we have seen until now as waste is instead seen as fuel, it has the potential to solve three problems at once: the UK’s contribution to climate change, possible future energy shortfalls and a significant component of the massive bill – and massive headache – associated with cleaning up the current nuclear mess.

The technology with the potential to solve these problems is the fast reactor, ideally the integral fast reactor (IFR), about which I wrote in December. It exploits the fact that conventional nuclear power plants use just 0.6% of the energy contained in the uranium that fuels them. IFRs, once loaded with nuclear waste, can, in principle, keep recycling it until only a small fraction remains, producing energy as they do so.

(…) GE Hitachi has offered to build a fast reactor to consume the plutonium stockpile at Sellafield, though not yet the whole kit (the integral fast reactor). It has offered to do it within five years, and to carry the cost if it doesn’t work out. This is the proposal the government is now considering. I would like to see it go further and examine the case for the full works: an integral fast reactor (incorporating a reprocessing plant) that generates much more energy from the waste pile.

Read the whole thing »

I confess to being a bit excited to see George taking up this vital issue. And the extent of the commentary he is generating. Read the comments – see what you think. So far I would rate about 25% of the comments as being constructive and engaged. And less than 50% are of the typical unthinking anti-nuclear sort. Those comments are usually being thoroughly refuted by multiple contributors.

Eye-watering cost of renewable revolution

WNN summarizes Siemens projections of the cost of Germany’s massive renewable deployment.

Germany’s energy policy could cost some €1.4 trillion ($1.8 trillion) by 2030 even before the cost of the nuclear shutdown is taken into account.

Neckarwestheim (EnBW)
Germany is to forego 14 years of
low-cabon generation from Neckarwestheim 2 (Image: EnBW)

The figures were announced by the head of Siemens’ energy division, Michael Suess, at the Energiewirtschaft 2012 event organised by the Handelsblatt newspaper in Berlin and later confirmed to World Nuclear News by Siemens spokesmen.

For several years the country has planned an ‘energy revolution’ designed to tackle climate change and establish renewable technologies at the centre of a new power supply system. Two years before nuclear generation ends in 2022, Germany wants to have cut greenhouse gas emissions by 40%, doubled renewables to supply 35% of electricity and cut primary energy consumption by 20%.

Siemens’ calculation of the total investment in generation and transmission to do this came to €1.418 trillion ($1.848 trillion) in the period from 2011 to 2030.

(…)

Two immediate effects of the nuclear shutdown have been a rush to finish building 10 GWe of fossil power plants, and short-term reliance on an oil-fuelled plant in Austria. A Deutsche Bank report estimated that the carbon dioxide increase from the permanent shutdown of the seven reactors and the early phase-out of the rest would result in the emission of 370 million tonnes of carbon dioxide by 2020. Before the shutdown, Germany’s nuclear sector had been the biggest source of low-carbon power.

Read the whole thing »

Everyone knows that financing for nuclear construction is unobtainable

That is of course why the nuclear industry has extorted huge subsidies from US taxpayers — in the form of federal ‘loan guarantees’. BTW, those guarantees are not a subsidy, they are fee-paid by the associated electric utility, for the purpose of mitigating the political risk of first-mover new nuclear plants. E.g., endless “green” litigation attempting to block completion and operation of the plant.

Anyhow, harrywr2 notes the reality of financing available to South Carolina Electric & Gas Company (SCANA Corp):

Scana, the South Carolina Electric Utility that is building a twin AP1000 just issued some bonds with a yield of 4.3%. So much for the argument that ‘financing’ for nuclear construction is unobtainable.

http://www.scana.com/en/investor-relations/news-releases/2012-sceg-announces-debt-offering.htm

Eamon: Japan’s political dynamics after the Tohuku earthquake

A fascinating post by Japan-resident Eamon on Brave New Climate. It seems that even in Japan politicians “Never pass up a good crisis…” to seek political advantage.

Note the brief outline of “Amakudari”, the Japanese term for revolving door from regulator-to-industry. If this practice is permitted the resulting incentives ensure regulatory capture. In the US it is common for regulators to retire on a nice pension, move a few blocks to “K Street” into a cushy job lobbying their former officemates. You can make this transition without having to change car pools.

Roger Clifton, on 17 January 2012 at 6:40 PM said:

@Eamon — more questions. I’ve done some homework for you already — perhaps you could, as a Japan resident, prepare a short summary for us here on the political dynamics after the Tohuku earthquake?

No problem Roger, though my call for info was because the people on this forum would likely be able to point me in the direction of scientific studies, rather than the dross that abounds on the Web these days.

The political dynamics are shaped by two factors: a deeply entrenched bureaucracy that is used to shaping policy-making, and the political-class that appreciates the figurehead position that this creates.

After the earthquake people expected quick movement on generating and approving finances to help rebuild the Tohoku area. This got dragged out immeasurably by political sniping (some from inside the ruling party) by those wishing to be the next at the reins of power. Also, many minor parties, often needed to form ruling coalitions, have become firmly anti-nuclear, which will complicate things in the future.

One of the consequences of the powerful bureaucracy is that it is used to sharing knowledge sparingly within its myriad departments, and there has been little need for the public or politicians to challenge this given the Confucian ethos that, until recently, permeated Japan.

This gave rise to some of the most damaging revelations during the disaster, though typically, an increasing anti-nuclear media is portraying this as an nuclear industry issue, rather than a bureaucracy issue. The revelations include:

* The Nuclear Safety Commission ignoring information from the SPEEDI System (System for Prediction of Environment Emergency Dose Information, Department of Trade, Industry and Education). This lead to evacuees staying in an area of high radiation, which could have been avoided by consulting SPEEDI.

* The Nuclear Industrial Safety Agency asking TEPCO to assess the risk of Tsunamis to its Fukushima Plants. TEPCO reported back a few days before the tsunami that there was a risk of a 9-metre tsunami.

* The Agriculture Ministry banning the feeding of livestock with hay, as it could be contaminated by fallout. They forgot that Japanese farmers also use rice straw to feed livestock. Result – contaminated meat.

* Bureaucrats forgetting that gravel and other aggregates are stored outdoors. Contaminated gravel was widely used in construction in Fukushima Prefecture after the disaster, one condominium’s ground floor having two orders of magnitude more radiation than the local background.

* Prime Minister Kan ordering the halting of seawater injection into the damaged cores due to NRC quavering on its pros and cons. Luckily the site manager requested that his staff ignore the order and they did.

Please note I’m referring to public perceptions here – contaminated meat in small amounts will not have a noticeable effect (if at all) on a person’s health, though there is argument on the sensitive of young children to radiation doses. Also note that an increasing distrust of the bureaucracy (and with good reason) leads people to question what they hear from them – especially with regards to food safety these days.

One of the lessons learnt from the evacuation in Ukraine was how it damaged the health of hundreds and the quality of life of thousands of evacuees. Assuming the lesson had reached his advisers, why then did PM Kan order an evacuation from a 20 km radius of the damaged power station? Did competent authorities get excluded from the advice?

I will say first, that I agree with his decision, as a precautionary measure – though I think it should have also been bounded by probable contaminated areas (Using data from SPEEDI) rather than a simple radius. Until a good picture of the actual dangers on the ground are it seems sensible, and moreover, was a political necessity given the public pressures on the administration. There was also the additional factor of having to deal with the tsunami and earthquake damage across Tohoku

I will add at this juncture that my knowledge of that time is spotty – we were without electricity, kerosine and petrol, and low on supplies. We got general emergency updates over a battery powered radio. So apologies if this seems a broad summary.

As for competent authorities, it’s very hard to judge, given the bureaucracy’s secrecy and industrial ties (Amadukari#), but when we got our power back the experts consulted on NHK News seemed to be non-activist academics, though that changed as bureaucratic bungling came to light.

Alternatively, the Japanese Cabinet may have been misled by other advice, that more deaths would result if these people were left rebuilding after the tsunami than if they were evacuated. If so, he would have quoted an estimate of the net number of deaths averted. Please advise us of any official estimates of the consequences of action and inaction.

That kind of information is not available, as far as I know, and given the lack of solid information at the time of the evacuation order it might not have been reliable enough to accurately weight scenarios.

Or could it be that the order to evacuate was just a placation of a public made needlessly frightened ?

Given the advance to INES Level 7 (we really need a 6.5 here!) it probably was the right choice, solidly from a public relations viewpoint, and generally from a precautionary viewpoint. The partial melt-downs that occurred back up the latter, especially given that fact that jury-rigged systems were needed, fed by an erratic power supply, to fight to stabilize the plant in the days and weeks ahead.

Finally, sorry for the delay in my response. Family, work, and the need to combat anti-nuclear hype in the various fora I’m a part of in Japan kept me from it.

#Amakudari – the system where bureaucrats retire to cushy jobs in the industries they previously supervised. Serving bureaucrats must ensure they do not affect bureaucracy-industry links so much that they find themselves without a lucrative post-retirement position. This makes for ineffective oversight, and often out-and-out corruption.

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