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Contents contributed and discussions participated by Dan R.D.

Dan R.D.

Lessons Learned from Fukushima: part I - the Technical [24Jun11] - 0 views

  • 1)     Natural disasters
  • In the U.S. this is an ongoing effort. Every time something happens through the INPO reporting systems and the NRC assessments, the entire industry looks at each facility and assesses any lessons learned or changes that need to be made.However, it is clear that we need to remain vigilant against complacency while balancing cost vs. risk assessments of these potentials.
  • 2)   Long term Station Blackout (SBO)
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  • Generally two issues stand out. Either the possibility of common cause failure needs to be eliminated, or the facility needs to be able to manage for a longer period before regaining power. The inherent issue here is how long is long enough and the fact that batteries aren’t really a practical option for driving pump power.
  • 3)   Ultimate Heat Sink
  • The underlying issue of SBO is one of maintaining the ultimate heat sink during those early critical hours when the decay heat in the reactor is significant and can cause major fuel failure. Loss of the heat sink is the ultimate reason for the catastrophic failure of the fuel in core. Whether a solution separate from the SBO issues is required isn’t clear, but the issue is one to consider.
  • 4)   Spent Fuel Pools
  • The issues with the spent fuel pools are still evolving. Claims made internationally regarding the status of the pools in the early days of the event have been clearly proven false. However, at a minimum these pools represented a significant diversion of resources for TEPCO that could have been better spent elsewhere.
  • 5)    Hydrogen
  • aside: I’ve been told that many believe that hydrogen explosion to be like a hydrogen bomb. That is not the case. The explosion we’re talking about here is that of hydrogen and oxygen recombining rather violently to make water. It is the same mechanism that caused the explosion of the Challenger Shuttle in the 1980’s :end aside.
Dan R.D.

Columbia River Area To Be Contaminated With Nuclear Waste for Millennia [10Feb10] - 0 views

  • given the fact that a new study reports that the Columbia River will be contaminated with nuclear waste from a nuclear weapons plant for thousands—yes, thousands—of years. Even though the government has already spent billions of dollars on cleanup.
  • The Oregonian reports that the Hanford Nuclear Reservation, formerly a nuclear weapons production site, sits on 586 square miles of land next to the Columbia. And it has already leaked and spilled some waste into the river, contaminating the water and surrounding environment with such fun things as strontium, cesium, tritium, and plutonium. The federal government did an analysis of the damage to determine if capping and sealing off the waste would stop more of it from getting out, and also, if more waste could be imported to the site to be buried along with the original waste.
  • The analysis also shows that the U.S. energy department's plan to import low-level and midlevel radioactive waste from other sites to Hanford after 2022 poses "completely unacceptable" risks, [assistant director of the Oregon Department of Energy Ken] Niles said. Washington is also raising concerns about importing more waste. […] Health risks from Hanford's contamination are long-term, not immediate. They're expressed in terms of cancer cases after a lifetime of drinking well water from the site, with a one in 10,000 risk considered high. But many of the contaminant levels at the site exceed health benchmarks by wide margins.
Dan R.D.

Renewable energy tops nuclear power in the US [09Jul11] - 0 views

  • A report produced on behalf of Bloomberg says that investments in renewable energy have gone up by roughly a third over the last year, to $211 billion. Led by China's renewable push, the world is now on a trajectory that will see its investments in renewable electricity surpass those in fossil fuels within a year or two. As a result of these investments, the US is now producing more renewable energy than nuclear power.
  • Any way you look at things, the numbers make it clear just how significant renewables have become. Excluding hydropower, renewables made up about 35 percent of the power capacity added worldwide last year, and produced over five percent of the total power. Investments directed toward this new capacity (excluding things like mergers) hit $187 billion, and are closing in fast on the spending on fossil fuel power plants, cutting the gap in spending to $31 billion, down from $74 billion. At that pace, we'll be investing more in renewables either this year or next.
  • Part of the reason is cost. Although wind turbines are very mature technology now, their cost per MW still fell by 18 percent over the last two years; photovoltaics have dropped a staggering 60 percent in that time.
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  • That will be a major transition, but another one took place already this past year: more financing went to utility-scale projects in the developing economies than in the industrialized ones. That change is driven by China, where investments were up by about 30 percent, reaching $49 billion.
  • The US, despite seeing a jump of 60 percent, still trailed far behind, with only about $25 billion in these investments.
  • Renewables are also becoming a major factor outside of the BrIC countries (Brazil, India, China). Latin American investments tripled to clear $6 billion, and other Asian nations saw 30 percent growth to $4 billion. But the big story is Africa, led by Egypt and Kenya, where investments were up nearly five-fold, reaching $3.6 billion.
  • Electricity generated by nuclear plants has held steady at about 8,400 quadrillion BTUs for the last several years, while renewables have experienced strong growth, reaching just over 8,000 Quads last year.
Dan R.D.

No Meltdowns or Bombs with Thorium Electrical Power Generation [09Jul11] - 0 views

  • After Fukushima, the Chinese governement have decided to finance the development of the much safer Thorium Fuelled Molten Salt Reactor - this way of producing energy is far safer than Pressure Water Reactor - it does not need pressure and there is no meltdown possibility at all. Further Thorium reactors cannot be used to make nuclear bombs.
  • Thorium is as common as lead, and should have been chosen after the war.At the end of the 2nd World War war plutonium was needed to make nuclear bombs, and this was the main reason for taking the PWR route, because Thorium reactors cannot. Edward Teller - the designer of the atomic bomb - on his death bed - said that a Thorium Fuelled Molten Salt Reactor was a safer design and that the basic Thorium fuel more available than Uranium. He was working on a paper for this type of reactor at his death (see below).
  • It would cost about 1 billion to design a Thorium reactor (Twitter is valued at 7 billion).
Dan R.D.

Lessons Learned from Fukushima - the Corporate [01Jul11] - 0 views

  •      Crisis Communication
  • TEPCO seemed to have been surprised by the international attention paid to the events going on at Fukushima. In the early days, their press releases and press conferences were too infrequent and did not provide enough information. The lack of transparency drove a significant amount of speculation and fueled many rumors that are still reverberating in the media. Given the similar issues seen by BP in the aftermath of the Gulf spill, it was disappointing that TEPCO did not have a stronger crisis communication plan in place.
  • I do not see US utilities managing this any better. Utilities still seem to loathe talking to journalists or providing them with access and information to help educate them PRIOR to an event.
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  • 2)   Risk Management
  • It was clear that both BP and TEPCO failed to consider risk adequately. This issue is a tough one for public companies to manage. In many ways, they are driven by the need to be immediately responsive to the stockholder. Thus, understanding and responding to longer term risks is harder to justify.
  • 3)   Emergency Response Training
  • 4)   Know when to ask for help
Dan R.D.

Power Generation from Renewables Surpasses Nuclear [08Jul11] - 0 views

shared by Dan R.D. on 10 Jul 11 - No Cached
  • The latest issue of the Monthly Energy Review published by the US Energy Information Administration, electric power generation from renewable sources has surpassed production from nuclear sources, and is now "closing in on oil," says Ken Bossong Executive Director of the Sun Day Campaign.
  • In the first quarter of 2011 renewable energy sources accounted for 11.73 percent of US domestic energy production. Renewable sources include solar, wind, geothermal, hydro, biomass/biofuel. As of the first quarter of 2011, energy production from these sources was 5.65 percent more than production from nuclear.
  • As Bossing further explains from the report, renewable sources are closing the gap with generation from oil-fired sources, with renewable source equal to 77.15 percent of total oil based generation.
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  • For all sectors, including transportation, thermal, and electrical generation, renewable energy production grew just over 15 percent in the first quarter of 2011 compared to the first quarter of 2010, and fully 25 percent over first quarter 2009. In a break-down of renewable sources, biomass/biofuel accounted for a bit more than 48 percent, hydro for 35.41 percent, wind for nearly 13 percent, geothermal 2.45 percent, and solar at 1.16 percent.
  • Looking at just the electrical generation sector, renewable sources, including hydro, accounted for nearly 13 percent of net US electrical generation in the first quarter of 2011, up from 10.31 percent for the same quarter last year. Non-hydro renewable sources accounted for 4.74 percent of net US production.
Dan R.D.

Lessons Learned from Fukushima Part 3 - Political [08Jul11] - 0 views

  • There are several interactions to look at between corporations, regulators, and governments, nationally as well as globally. Like the technical and the corporate lessons learned, more lessons will be learned as time goes on and more information comes to light.
  • There are several interactions to look at between corporations, regulators, and governments, nationally as well as globally. Like the technical and the corporate lessons learned, more lessons will be learned as time goes on and more information comes to light.
  • NISA independence and oversight
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  • Much has been made of the apparent cozy relationship of TEPCO and NISA. There are clear indications that TEPCO as the largest nuclear utility in Japan had far too much influence on NISA, including some preferred hiring practices. Every country should look closely at the relations between the regulated and the regulator in every industry that has such oversight.
  • Political Interference – domestic
  • There have been reports that Prime Minister Kan of Japan was too involved in the response to the Fukushima incident. We’ve heard that he tried to prevent seawater injection and his desire to fly over the site delayed some of the vital activities. In addition, it appears that he bypassed some of the pre-planned emergency response systems that would have assured more balanced expert advice.
  • Political Interference – International
  • One of the most egregious examples of political grandstanding was NRC Chairman Jaczko’s presentation before Congress on March 16th. He declared that the unit 4 pool was dry and likely on fire and recommended a 50 mile evacuation zone for US citizens. The Japanese government vehemently denied the allegation and was ultimately proven correct.
  • International Emergency Response
  • IAEA was quick to send people to at least provide some independent international oversight of the risk to the population and the workers on the plant site. The NRC, EPRI, and other agencies also sent personnel with expertise on these plants to provide high level advice and suggestions. Those personnel were used by the Japanese and continue to provide support.
  • Suggestions have been floated to create an international “strike team” that would be available at a moment’s notice to fly to any plant that is in trouble.
Dan R.D.

Carnival of Nuclear Energy 60 [09Jul11] - 0 views

  • There are plans for eight more AP1000 reactors – four in Florida, two in North Carolina, and two in South Carolina. The next two AP1000s likely to be built are to be located near Miami at the Turkey Point power station operated by Florida Power & Light. The approval of the AP1000 design is turning into a high stakes outcome with much of the future of nuclear reactor construction in the U.S. over the next two decades riding on it. No other reactor vendor comes close.
  • UK continues on path to rebuilding a complete new sets of reactors. The Finnish government said that it has sent bid documents to Areva and Toshiba for responses to build a new nuclear power station. The new plant will need to generate up to 1,700 MW and be ready to produce power by 2020 at a cost of $6-9 billion
  • U.S. Nuclear Regulatory Commission has granted 20-year license renewals to the two reactors in Salem County, New Jersey. The two pressurized water reactors have been operating since 1977 and 1981 and generate just over 1,100 MW each.
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  • NuScale has been recalling some laid off employees. They have obtained “bridge funding” from an undisclosed investor group, allowing the firm to restore about 20 positions. They are trying to make a 45-MW plant which would cost a utility about $180 million.
  • Nextigfuture - Germany is set to turn back to coal, gas and imports to fill the energy chasm left by its fast-track exit of nuclear power. Germany produced 140.6 terawatt hours (TWh) of nuclear power in 2010. Germany produced 102 TWh from renewable energy in 2010, and they are targeted to add 115 TWh by 2020. Even 9 years from now Germany will still not have replaced all nuclear power with renewables. Some Uranium projects in Ukraine and Kazakhstan. The French Astrid breeder reactor.
Dan R.D.

Has Social Media Become More Important Than the Environment? [06Jul11] - 0 views

  • "Companies that make online games, social networks, and web coupons seem to be able to raise a lot more money in IPOs right now than companies that make energy technology, greener transportation and biofuels.  Zynga’s reported potential $2 billion raise could deliver Zynga five times Tesla’s combined IPO and follow-on offering. If Groupon raises at least $750 million, it would bring in more than the IPOs of Amyris, KiOR, Gevo and Zipcar, and the planned IPOs of  EnphaseEnergy and Luca Technologies combined. It’s kind of sad, actually."
  • Scott Edward Anderson also wrote about this very column for his blog, The Green Skeptic and he nailed it with his take..."We'd rather throw angry birds at pigs than throw our genius at building a productive new economy based on real, tangible solutions to our energy and environmental problems. Rather than produce real food for real people who really need it, we build virtual farms so our virtual friends can help us grow virtual food."
Dan R.D.

Alternative U.S. Nuclear Reactor Design Seeks Country Willing to Build Prototype (1) [2... - 0 views

  • The TerraPower "wave reactor" concept is backed by Microsoft's Bill Gates, is endorsed by Republican presidential hopeful Jon Huntsman Jr. and has gotten a receptive ear from President Obama's Energy Department. But it's headed overseas for its next crucial step, if ongoing negotiations with a foreign sponsor are successfully completed, says Roger Reynolds, TerraPower's technical adviser.
  • "We've had conversations with the Chinese, the Russians, the Indians, the French," Reynolds said in an interview. "We have an aggressive schedule where we think it is important to get something built and accumulate data so that we can eventually build them in the U.S. Breaking ground in 2015, with a startup in 2020, is more aggressive than our current [U.S.] regulatory structure can support."
  • In addition to its unique fuel cycle, the TerraPower design employs a high-temperature, liquid metal core cooling technology suited to a breeder reactor with "fast" neutron activity, rather than today's predominant reactors whose water cooling systems slow neutrons.
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  • Under this new approach, the reactor can still be sealed and run without being reopened for 40 to 60 years, Reynolds says.
Dan R.D.

Alternative U.S. Nuclear Reactor Design Seeks Country Willing to Build Prototype: Scien... - 0 views

  • "You can't really deal with poverty unless you have a sufficient amount of energy," Reynolds said. "You can't grow your family; you can't build schools or hospitals; you can't mitigate all the problems that are associated with poverty without energy.
  • "By partnering with the Chinese, they can move ahead and commercialize the technology around the world when it is proven," Huntsman said.
Dan R.D.

U.S. Ready to Take More Oil Action If Needed, Official Says [23Jun11] - 0 views

  • The U.S., after authorizing the release of 30 million barrels of oil from its emergency stockpile, is prepared to take additional action if needed to react to disruptions in world supplies, according to an Obama administration official. The decision to draw oil from the Strategic Petroleum Reserve, part of an international move to release 60 million barrels, was made after months of consulting with allies and oil-producing nations, according to officials, who briefed reporters on condition they not be named.
  • The coordinated release of 60 million barrels by the U.S. and 27 other nations would provide about 2 million barrels a day within the first 30 days, according to the IEA.
  • Supply Concerns The release is being done in response to disruption caused by the Libya conflict and in anticipation of increasing demand during the U.S. summer driving season, the official said. It is intended more to ensure supply rather than affect prices, according to the official. The national average retail price for a gallon of regular gasoline is $3.612, according to a AAA survey.
Dan R.D.

$280m fund for home-based solar the largest yet [14Jun11] - 0 views

  • Google and SolarCity have launched a $280 million fund to help bring solar power to residential customers. It’s Google’s largest investment to date in the clean-energy sector, as well as the largest residential solar fund ever created in the US. It’s also the 15th project fund for SolarCity, which has worked with seven different partners to finance $1.28 billion in solar projects. “Google is setting an example that other leading American companies can follow,” said Lyndon Rive, CEO of SolarCity. “The largest 200 corporations in the US have more than $1 trillion in cash on their balance sheets. Investments in solar energy generate returns for corporate investors, offer cost savings for homeowners, create new, local jobs for jobseekers, and protect the environment from polluting power sources. If more companies follow Google’s lead, we can dramatically reduce our nation’s dependence on polluting power.”
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