Dispelling the myths about “New Small Nuclear” – it’s not even new

When it comes to Nuclear Power, Small Isn’t Beautiful, Nor Safe Nor Cheap Nor Even New. USNRC NuScale Comment Deadline Monday Night 31 August, One Minute to
Midnight NY-DC Time 30 SundayAug 2015 by

NuScale Power, LLC, Design-Specific Review Standard and Safety Review Matrix“Docket Folder Summaryhttp://www.regulations.gov/#!docketDetail;D=NRC-2015-0160 (If you don’t like the questions answer a different question, as per the advice that an MIT Ph.D. gave their grad student, and MIT is big on nuclear, the head of the US DOE, Moniz, teaches there, so it should be ok for this!)

NuScale in 2003 when it belonged to the US Gov and was called “MULTI-APPLICATION, SMALL, LIGHT WATER REACTOR (MASLWR)” INEEL/EXT-04-01626

Greenpeace’s Justin McKeating made an excellent analysis of NuScale last year (see below our commentary).

However, he overlooked that the US DOE actually invented NuScale under the name of MASLWR. So, this is at least a second round of government funding. The US government dropped MASLWR and former DOE workers picked it up, probably after the patent expired, dubbing it NuScale. And, they are still feeding off the taxpayer pork barrel dole.[1][2] Plus, it’s NuScale Not! The nuclear industry only knows how to recycle the same old stuff.

There doesn’t appear to be much, if anything, new about NuScale. The only known immediate nuclear deaths from a nuclear accident, in the US, were from a mini-SL-1 reactor that made nuclear fallout in rural Idaho. [3] In 1968, in Lucens Switzerland, there was a mini-underground nuclear reactor, which had a major accident. Although smaller than NuScale, 100 Rem (1 Sievert; 1000 mSv) was measured in the reactor cavern, and it is ranked as a major nuclear accident. Radiation was measured in the nearby village; it continues to leak radiation from the cavern. From the beginning the Lucens Reactor was plagued by leaks in the underground cavern and corrosion issues due to its underground location. [4] NuScale too will suffer from additional corrosion and extra problems of hydrogen attack because it is part underground and stuck in water on all sides. Underground nuclear isn’t a magic fix, on the contrary.

NuScale is apparently not really passive either “Conduction through the vessel wall is by itself not a sufficient mechanism for heat removal in the present design. A circulation path is required to effectively remove the core decay heat. The sump makeup system is required.” [5] Furthermore, Italian researchers found that if if “SUMP valves are not operated and the ADS vent valves stuck open“, then there was a six hour “grace” period before CHF [Critical Heat Flux] “conditions are reached at top of the core. The dryout cannot be quenched. Primary system coolant released thorugh the HTC top valve outside the contaiment” [6]. Six hour grace period to meltdown-nuclear accident. So, these are neither passive, nor perfectly safe. And, they are proposing putting them in large groups, which makes one wonder what’s the point. A quick look online shows that NuScale has just submitted a laundry list of patents (July 2015) which, looking at the list alone, sound less original, than trying to patent a chicken sandwich, as someone recently did.

From Greenpeace:
When it comes to nuclear power, small isn’t beautiful. Or safe or cheap.
Blogpost by Justin McKeating – June 19, 2014 at 11:55
Not beautiful, safe or cheap: a message to the United States, where the Obama administration has pledged to waste money financing the Small Modular Reactor (SMR).

SMRs are supposed to be small and prefab – constructed from parts made in a central location and slapped together onsite like a cheap prefab home. Those parts can then be shipped out and built by staff who don’t necessarily have the skills to build larger, more complex reactors.

The trouble is, this is merely old nuclear technology in new clothes. So why is the US Department of Energy (DoE) is giving $217 million dollars over five years to NuScale, a SMR manufacturer.


Let’s note, with a weary shake of the head, that this is yet another public subsidy for the failing economics of nuclear power, and take a look why this is a bad investment of taxpayer dollars by the Obama administration.

Dr. Mark Cooper, senior fellow for economic analysis at the Institute for Energy and the Environment at Vermont Law School, has published a paper titled, The Economic Failure of Nuclear Power and the Development of a Low-Carbon Electricity Future: Why Small Modular Reactors Are Part of the Problem, Not the Solution.

In his paper, Dr. Cooper finds SMRs won’t be cheaper and, more worryingly, manufacturers and supporters of the technology want to short-circuit safety regulations to get them built.
With the Fukushima disaster in its fourth year and no real solution to the ongoing problems and massive contamination in the foreseeable future, maybe now is not the time to talk about reducing nuclear safety, particularly with experimental, untested technology.


Dr Cooper adds SMRs will be more expensive than traditional nuclear technologies and that up to $90 billion dollars will be needed to make SMRs commercially viable. That’s a huge sum that will drag financing away from renewable power projects that are vital in the fight against climate change.

We’ve been here before: the story of the nuclear industry wasting billions is an old one…….. https://miningawareness.wordpress.com/2015/08/30/when-it-comes-to-nuclear-power-small-isnt-beautiful-nor-safe-nor-cheap-nor-even-new-usnrc-nuscale-comment-deadline-monday-night-31-august-one-minute-to-midnight-ny-dc-time/



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