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The U.S. Navy nuclear program has developed 27 different plant designs, installed them in 210 nuclear-powered ships, taken 500 reactor cores into operation, and

The U.S. Navy nuclear program has developed 27 different plant designs, installed them in 210 nuclear-powered ships, taken 500 reactor cores into operation, and accumulated over 5,400 reactor years of operation and 128,000,000 miles safely steamed. (source Wikipedia) Many of these have operated in and around the most densely populated ports and cities in the world. I helped operate 3 of them. No issues.

toomuchtodo 6y ago
The US Navy should build and operate commercial reactors as a revenue generator.
- gwbennett 6y ago
  One of the keys to the US Navy's success is standardization of reactor design, components and training. A sailor can go from one sub to the next and find the reactor plant nearly identical in operation and design as the other within the same class of ship. Nearly every commercial plant is different in design and components. Imagine if every company you worked for designed, built their own operating system and computers.
  - toomuchtodo 6y ago
    Yes, exactly. Have the Navy design, deploy, and operate reactors for that very reason. They've already done it, instead of startups attempting to start from zero. Even if you don't generate a profit, or operate at a reasonable loss, you're projecting soft power a la China's Belt and Road while providing humanitarian and environmental benefits. You might even deploy them as marine vessels in ports [1], so that in the event of a (hopefully rare!) catastrophic failure, flooding the reactor with water is trivial. [1] https://en.wikipedia.org/wiki/Russian_floating_nuclear_power_station https://en.wikipedia.org/wiki/Russian_floating_nuclear_power...
  - jhayward 6y ago
    Tell us how much, on a per-KWh, the design, build, and operational costs of a Navy reactor are please.
- credit_guy 6y ago
  I don't know about others, but personally I am not very comfortable with the idea of a military branch becoming financially independent.
koolk3ychain 6y ago
That said, all of these reactors have been on platforms surrounded by water and are occupied by hundreds if not thousands of trained (some highly trained) crew 24/7. It goes without saying that many of those crew are also armed or directly tasked with ensuring nobody can tamper with the nuclear power source / any part of the platform. I should also add a very good friend of mine is a nuclear engineer who works on submarines. I'm not sure it's even fair to compare the operational discrepancies of something as simple as a test / training reactor to a nuclear heat source at a concrete plant?
jhayward 6y ago
You should know, then, that the cost to design, build, and operate those reactors was orders of magnitude higher than any commercial plant that would be competitive. The problem with nuclear is primarily cost, cost, cost, and then scale, security, and waste.

toomuchtodo 6y ago

The US Navy should build and operate commercial reactors as a revenue generator.

gwbennett 6y ago
One of the keys to the US Navy's success is standardization of reactor design, components and training. A sailor can go from one sub to the next and find the reactor plant nearly identical in operation and design as the other within the same class of ship. Nearly every commercial plant is different in design and components. Imagine if every company you worked for designed, built their own operating system and computers.
- toomuchtodo 6y ago
  Yes, exactly. Have the Navy design, deploy, and operate reactors for that very reason. They've already done it, instead of startups attempting to start from zero. Even if you don't generate a profit, or operate at a reasonable loss, you're projecting soft power a la China's Belt and Road while providing humanitarian and environmental benefits. You might even deploy them as marine vessels in ports [1], so that in the event of a (hopefully rare!) catastrophic failure, flooding the reactor with water is trivial. [1] https://en.wikipedia.org/wiki/Russian_floating_nuclear_power_station https://en.wikipedia.org/wiki/Russian_floating_nuclear_power...
- jhayward 6y ago
  Tell us how much, on a per-KWh, the design, build, and operational costs of a Navy reactor are please.
credit_guy 6y ago
I don't know about others, but personally I am not very comfortable with the idea of a military branch becoming financially independent.

koolk3ychain 6y ago

That said, all of these reactors have been on platforms surrounded by water and are occupied by hundreds if not thousands of trained (some highly trained) crew 24/7. It goes without saying that many of those crew are also armed or directly tasked with ensuring nobody can tamper with the nuclear power source / any part of the platform. I should also add a very good friend of mine is a nuclear engineer who works on submarines. I'm not sure it's even fair to compare the operational discrepancies of something as simple as a test / training reactor to a nuclear heat source at a concrete plant?

jhayward 6y ago

You should know, then, that the cost to design, build, and operate those reactors was orders of magnitude higher than any commercial plant that would be competitive. The problem with nuclear is primarily cost, cost, cost, and then scale, security, and waste.