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Showing posts with label thorium. Show all posts
Showing posts with label thorium. Show all posts

Tuesday, December 20, 2016

CleanTechnica Watch: Comment Analysis of Thorium Article--Volume 1



In this article I clean up behind CleanTechnica's community manager who made a total of 87 comments under an antinuclear article published on CleanTechnica. Consider it a debate where each debate partner is banned from the other's comment field :  )

Some pronuclear commenters had their remarks held for moderation (even though CleanTechnica's comment rules claim they never do that) which were subsequently never published, while others had comments deleted. I saw one instance where this community manager posted a long rebuttal ...to a comment he'd deleted! Apparently, he does this fairly routinely.

Because the CleanTechnica community manager made 17% of the 509 comments before he shut them down, I'll be parsing them by category. I'm also breaking this up into more than one volume. This is Volume 1. The community manager's arguments occasionally trip on each other but in a nutshell they are based on his erroneous insinuation that wind will always cost less everywhere and that storage will fix the intermittency problems.

Feel free to drop into that comment field to see quotes taken from it in full context.

Cost

The CleanTechnica community manager's main argument is that when wind costs less then nuclear, we should replace nuclear with it.

Using that simplistic reasoning, we should eliminate all other new low carbon sources of energy that may cost more than onshore wind (which, in the U.S., would, in addition to new nuclear, include solar PV, solar thermal, offshore wind, geothermal, and biomass). See Figure 2.

Monday, December 19, 2016

CleanTechnica Watch: Is Thorium A Future Option For Nuclear Energy?




Previous CleanTechnica antinuclear articles reviewed:


Screenshot From Documentary of Sunniva Rose, Nuclear Physicist
Sunniva Rose explained some nuclear physics terms in the documentary. Be sure to see her TEDx talk: "How is it possible to worry about global warming and not be pronuclear?"

Click here to learn more about CleanTechnica watch. 

The CleanTechnica version of this article was originally posted on the German antinuclear energy website Energy Transition.

The article is an ad for the author's book in the disguise of a review of a TV documentary that aired in October on Arte (a Franco-German TV station), promoting a thorium molten salt reactor design. I found a version with English subtitles here. I recommend that you read Myths and Misconceptions about Thorium nuclear fuel instead of watching the film. It will save you an hour and the article is far more factual.

In his first sentence he calls pressurized-water reactors "awful." I'm not convinced that a total of three incidents of note in over a half century of low carbon energy production with only one of them releasing enough radiation that will (after eighty years), result in a statistically possible total number of fatalities that are less than a percent of annual global car deaths ...fits the definition of awful.

The film clearly calls for tremendous investments in thorium nuclear, with a prototype reactor costing “a billion euros.”

If that's a "tremendous" investment, what would you call the $30 or so billion Germany has been spending annually for several years now trying to displace its existing nuclear with wind and solar? Ginormous?

Just as there are millions of ways to skin a cat, there are thousands of potential configurations for nuclear power reactors. Using a thorium fuel mixed with molten salt is just one of them and would come with its advantages and disadvantages if ever put into commercial operation. The film touted three advantages: the abundance of thorium, the potential for passive safety (lose power, the fuel drains into a big bathtub and just cools off) and less waste.