Skip to main content

The Small Reactors at Savannah River

hyperion power moduleThe Department of Energy proposed a couple of years ago spurring the development of small nuclear reactors by entering public-private partnerships with several vendors to foster the building of prototypes and, eventually, generate NRC license applications for the designs.
Now, the first fruit of this program has budded:
Hyperion Power Generation Inc., the Department of Energy – Savannah River, and Savannah River National Laboratory have announced their commitment to deploy a privately-funded first-of-a-kind Hyperion reactor at the DOE Savannah River Site.
Hyperion doesn’t need a license to pursue its work, as it could sell its reactor technology overseas if it chose and go through whatever processes are established in other countries. But it recognizes the value of the NRC’s license procedure as a kind of gold standard:
“It is important that we achieve NRC licensing to provide worldwide confidence in the technology and design of our advanced Generation 4 reactor,” said Dave Carlson, COO and Chief Nuclear Officer with HPG.
Let’s back up over the news a little bit.
Hyperion joins NuScale and Holtec International among the companies included in the DOE program. The work by all three companies will be done at South Carolina’s Savannah River Site. NuScale and Hyperion have small reactor designs.
So does Holtec, which I’ve generally regarded as a parts fabrication company. Holtec’s HI-SMUR 140 is a 140-megawatt reactor with an underground core. The design requires no reactor coolant pump or off-site power to cool the reactor core.
A little more about what the announcements mean:
The agreements will allow these private companies to gain information on SMR reactor deployment at SRS and offer a framework to develop land use and site services contracts to promote these initiatives. The MOUs help to leverage Savannah River’s nuclear expertise, energy facilities and land assets that support private sectors to develop, test and license prototype SMR technologies.
That’s a chunk of acronyms – MOU is memorandum of understanding, the agreements between Savannah River Site and the companies, presumably to be followed by contracts.
World Nuclear News expands on this a bit:
However, the DoE stressed that the new agreements "do not constitute a federal funding commitment." It said that it envisages private sector funding to be used to develop these technologies and support deployment plans. The DoE added that the agreements are unrelated to its funding opportunity announcement for SMR cost-share projects announced in January.
This forward-looking projects will be interesting to follow, something I’m sure the three companies and DOE will be eager to help us do.
A speech given about the Canadian response to the accident at Japan’s Fukushima Daiichi site is an interesting echo of the American response, with the Canadian Nuclear Safety Commission in the role of the NRC and the World Association of Nuclear Operators playing INPO (and INPO playing INPO, too.)
The speaker is Tom Mitchell, the President and CEO of Ontario Power Generation. The following excerpts are adapted from notes he put together for the speech. You can read the whole thing here. (I like that the Canadians use the term learnings for lessons learned,too.)
Much has been written about Fukushima – some of it critical of our industry. Yet as I look back at events over the past year, I believe our reaction to Fukushima was timely, appropriate and effective.
Right from the start, here in Canada we moved quickly to give people as many facts as possible about the event – and assure them of the safety of our nuclear units. The CNA was very active during this period. So was OPG as well as our nuclear colleagues.
At OPG, we communicated quickly and across a number of fronts --- with local communities and on regional, national and international level. We dedicated a portion of our website to the event – providing fact-based information about the event and our stations. We made our executives available for speeches and interviews. We did extensive outreach in our nuclear site communities. We published information pieces in local and regional newspapers. And we established regular and ongoing communications with nuclear organizations from around the world – including WANO (World Association of Nuclear Operators), INPO (Institute of Nuclear Power Operations) and the IAEA (International Atomic Energy Agency).
Our message was clear.
The geology at our sites was stable and our nuclear safety systems were robust – with redundant back-up power so that we were not vulnerable to Fukushima-type acts of nature.
The CNSC (Canadian Nuclear Safety Commission) was also active.
Shortly after the event, it asked Canadian nuclear operators to provide verification their reactors were safe. The CNSC also provided information on its website that was useful to both the industry and the general public. In response to the CNSC’s request, OPG and other operators launched a thorough assessment of their operations to confirm their safety.
We also committed to a number of specific actions based on lessons learned from Fukushima. By April, we had reconfirmed that our stations were indeed safe and the systems in place at OPG’s nuclear facilities were robust enough to withstand significant emergencies. In July we issued another report in which we outlined the steps we were taking to address the key learnings coming out of Fukushima. These learnings included the absolute necessity to guard against external events – specifically those that threaten to overwhelm the design basis of the plant’s systems and equipment.
I’m not sure of the CNSC’s role – it may not carry the same regulatory heft of the NRC or perhaps Sullivan just wanted to stress his company’s activities. 
There’s a section of the speech about the CANDU (which stands for Canada Deuterium Uranium) reactor, the country’s home-grown variation on a pressurized heavy water reactor. Canada has 18 operating reactors, 16 in Ontario, one in Quebec and one in New Brunswick. All are CANDUs. Canada has also sold about 32 CANDUs to other countries. None are in the United States. You can read more about the CANDU reactor here.
Nuclear energy provides about 15 per cent of the country’s electricity and 50 percent of Ontario’s electricity.
Congress and Bharatiya Janata Party (BJP) cadres hurled stones on anti-nuclear energy protesters here on Saturday. A police constable, Murugesan (45), suffered head injuries in the incident.
The story in The Hindu offers more details but not enough context to understand why government pelting occurred here. Apparently, the protest involves the building of the Kudankulum facility in Tamil Nadu, which has indeed become contentious, but that’s all I can figure out. Let’s file this one away until more information surfaces. In the meantime: no pelting.
The Hyperion Power Module is actually the little pellet-like element indicated by the arrow in this conceptual drawing.


Steve Skutnik said…
A minor correction - SRS is in the other Carolina (i.e., Aiken, SC).
SteveK9 said…
Maybe some of the Indians are realizing that a couple of hundred ignorant fisherman are keeping 2 million people from access to electricity.
Anonymous said…
I have a big question: Will the prototype projects at Savannah River require NRC approval? Since the NRC is the biggest hurdle to making a reactor, it would be nice if one could build first, and get the licensing later.

I ask because I've been following this for some time, and gotten mixed signals. Clearly, some parts of the federal government can make a nuclear reactor without NRC involvement (when was the last time you heard of an NRC hearing for a new submarine reactor?), but is the DOE one of them? At least once, I read that on DOE projects, the NRC had no power, and then in a follow up to that, the NRC claimed it did have the power.

If the NRC has the power to license a prototype reactor at Savannah River, we can kiss these projects goodbye. If the AP1000 took four years from application to licensure for a bog standard simplified evolutionary design, how long will it take for a revolutionary design like Hyperion? (Especially considering that the NRC isn't even looking at anything other than light water designs).
Anonymous said…
NRC doesn't prioritize design certification reviews for designs that don't have any imminent customers. That doesn't seem like bias, but rather good management sense.

NEI representatives on the board: Do you consider NRC licensing to be "the biggest hurdle to making a reactor"?

Popular posts from this blog

A Billion Miles Under Nuclear Energy (Updated)

And the winner is…Cassini-Huygens, in triple overtime.

The spaceship conceived in 1982 and launched fifteen years later, will crash into Saturn on September 15, after a mission of 19 years and 355 days, powered by the audacity and technical prowess of scientists and engineers from 17 different countries, and 72 pounds of plutonium.

The mission was so successful that it was extended three times; it was intended to last only until 2008.

Since April, the ship has been continuing to orbit Saturn, swinging through the 1,500-mile gap between the planet and its rings, an area not previously explored. This is a good maneuver for a spaceship nearing the end of its mission, since colliding with a rock could end things early.

Cassini will dive a little deeper and plunge toward Saturn’s surface, where it will transmit data until it burns up in the planet’s atmosphere. The radio signal will arrive here early Friday morning, Eastern time. A NASA video explains.

In the years since Cassini has launc…

Missing the Point about Pennsylvania’s Nuclear Plants

A group that includes oil and gas companies in Pennsylvania released a study on Monday that argues that twenty years ago, planners underestimated the value of nuclear plants in the electricity market. According to the group, that means the state should now let the plants close.


The question confronting the state now isn’t what the companies that owned the reactors at the time of de-regulation got or didn’t get. It’s not a question of whether they were profitable in the '80s, '90s and '00s. It’s about now. Business works by looking at the present and making projections about the future.

Is losing the nuclear plants what’s best for the state going forward?

Pennsylvania needs clean air. It needs jobs. And it needs protection against over-reliance on a single fuel source.

What the reactors need is recognition of all the value they provide. The electricity market is depressed, and if electricity is treated as a simple commodity, with no regard for its benefit to clean air o…

Why Nuclear Plant Closures Are a Crisis for Small Town USA

Nuclear plants occupy an unusual spot in the towns where they operate: integral but so much in the background that they may seem almost invisible. But when they close, it can be like the earth shifting underfoot., the Gannett newspaper that covers the Lower Hudson Valley in New York, took a look around at the experience of towns where reactors have closed, because the Indian Point reactors in Buchanan are scheduled to be shut down under an agreement with Gov. Mario Cuomo.

From sea to shining sea, it was dismal. It wasn’t just the plant employees who were hurt. The losses of hundreds of jobs, tens of millions of dollars in payrolls and millions in property taxes depressed whole towns and surrounding areas. For example:

Vernon, Vermont, home to Vermont Yankee for more than 40 years, had to cut its municipal budget in half. The town closed its police department and let the county take over; the youth sports teams lost their volunteer coaches, and Vernon Elementary School lost th…