Antinuclear

Nuclear Fusion: A Clean Energy Revolution Or A Radioactive Nightmare?

By Kurt Cobb – Jun 20, 2023, Oil Price

Fusion reactors, while producing energy, also produce neutron streams that can cause radiation damage, produce radioactive waste, necessitate biological shielding, and even create the potential for weapons-grade plutonium production.

Apart from the aforementioned problems, fusion reactors face issues such as tritium release, intensive coolant demands, and high operating costs, which would require the power plant to have at least a one-gigawatt capacity to balance costs.

Given the time and resources required for fusion power plant construction, the technology might not be feasible for timely carbon emission reduction, and the prospect of fusion energy might be distracting society from immediate solutions to energy scarcity and climate change.

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The reality of fusion power, however, is one of huge scale and vast obstacles according to Daniel Jassby, a former research physicist at the Princeton Plasma Physics Lab. (All of what follows assumes that the remaining obstacles to producing net energy from fusion will be overcome. Addressing that issue would require a seperate and lengthy essay.)

Perhaps the most unexpected revelation Jassby offers runs entirely contrary to the clean image that fusion energy has in the public mind. It turns out that the most feasible designs for fusion reactors will generate large amounts of radioactivity and radioactive waste.

[here much detail on the operation of nuclear fusion]………………………………………………………………………..

To power the enormously energy-intensive process of fusion, a fusion plant will use a lot of energy just to run itself. That means scale will matter. In order to accommodate this so-called parasitic power drain AND produce enough excess electricity to sell to pay for the costs of constructing the plant and for its ongoing operation, fusion plants will have to have a capacity of at least one gigawatt (one billion watts). One gigawatt can supply electricity to 300,000 to 750,000 homes depending on how the calculation is done. And, even much larger capacity per plant will be desirable because it will decrease the percentage of power production devoted to sustaining the fusion reaction and servicing the plant infrastructure. In short, making fusion plants big will be the only way to make them economical. So much for my friend’s fantasy of handheld fusion power units!

In a second article, Jassby addresses the International Thermonuclear Experimental Reactor (ITER) located in France. The project is a cooperative research venture designed to study and perfect fusion. It will not produce any electricity itself, but rather set the stage for so-called demonstration plants which could be built in the second half of this century.

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just to operate its experiments, ITER will require 600 megawatts of power, a window into the parasitic power requirements of fusion reactors.

The fantasy of cheap, unlimited fusion power arriving soon with no serious side-effects prevents us as a society from grappling with near-term energy depletion and our ongoing dependence on fossil fuels in the accelerated manner required to prevent a major energy crisis. Hope that fusion energy will somehow solve our energy and climate problems is not a real plan. It is just another illusory and far-in-the-future technical fix offered to convince us that we don’t need to alter our way of life in any substantial way to address the serious problems we face.  https://oilprice.com/Alternative-Energy/Nuclear-Power/Nuclear-Fusion-A-Clean-Energy-Revolution-Or-A-Radioactive-Nightmare.html

June 23, 2023 - Posted by Christina Macpherson | Uncategorized