REACH Portal - Nuclear Reactors deployment
21 May 2026
After careful study and exhaustive scouring through various AI information on nuclear reactor, SMR, fission, fusion, and if they are hit by bombs - the danger of radiation, I feel that the following infrastructure deployment for either SMR nuclear reactor - fission or fusion will be the safest for Singapore - being a small city state with little margin of errors as safety is paramount for Singaporeans and residents.
SMR nuclear reactors should be deployed in:-
1. Offshore islands preferable to meet the emergency radius of 1.6 km safety distance for SMR nuclear fission reactors (be it gas-cool, thorium-molten salt or uranium pellets).
2. Underground - organized in a honeycomb design - modularized, isolated - per comb, per nuclear reactor. Pse see diagram for reference.
So that if there is radioactive leakage - it is confined to that particular comb.
3. The offshore islands provide a buffer safety distance of 1.6 km - and in the event of leakage, the buffer distance will help in reaction time.
4. As gas-cool are using kernel plus multi-layer cladding to ensure nuclear fission to occur within protected kernel while allowing heat to generate electricity - leakage of radiation will be prevented.
Hence accident or leakages are very rare - in which deploying gas cool nuclear reactors underground will be safe due to the multi layer cladding protection from leakage or normal accident.
The need to rely on seawater as coolants and dilution - will rarely be needed - and hence need not be located on surface areas near the sea.
5. As modular honeycomb design per reactor are used, any leakage in one reactor will not affect the rest.
Also in underground, leakages will not harm population through radiation by air or sea.
6. However if offshore islands are not feasible - eg. Not sufficient underground space, underground soil too soft and not feasible for underground structure to house the nuclear reactors to be arranged in the honeycomb design - then alternative choice is to deploy in mainland underground or underneath Jurong island that have a larger surface area and harder underground soil.
7. I feel that offshore + underground deployment for nuclear reactors will allay the safety considerations concerning radiation leakage, terrorism or missiles attack in the event of war.
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After note:-
Jun 05, 2026 09:33 AM EST
"US underground ‘Gravity’ nuclear startup partners to build scalable 1.5 GW reactor tech.
Deep Fission has begun drilling the first of three planned data acquisition wells for its pilot facility."
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No major technical roadblocks prevent S’pore from storing nuclear waste, study with Swedish firm shows - possibly deep underground – if the country decides to adopt nuclear energy, according to a study by the Singapore authorities and a Swedish company.
Experts said Singapore’s granite rocks in the northern and central regions may be suitable to store used fuel and radioactive waste, but they must be unfractured and possess certain properties.
“Singapore is fortunate to have well-characterised granitic formations, such as the Bukit Timah granite, which extends across Woodlands and Sembawang through Bukit Batok and down to the central part of Singapore. We also have granitic rock on Pulau Ubin,” added Lim.
Apart from the rock, a deep underground repository should have two other layers of defence, or barriers: a corrosion-resistant copper canister encapsulating the used fuel rods, and a buffer clay material that envelops the canister and swells when exposed to groundwater, to close up fissures in rock.
If one barrier is weaker, the other barriers can be enhanced to maintain the overall stability of a deep geological repository, EMA explained.
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"askST: How do countries deal with waste from nuclear energy?"
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"Modular next-gen US nuclear reactor goes critical".
Gas cool nuclear reactor.
https://newatlas.com/energy/antares-modular-next-gen-us-nuclear-reactor-critical/#:~:text=Modular%20next%2Dgen%20US%20nuclear%20reactor%20goes%20critical
Gas cool nuclear reactor.
https://newatlas.com/energy/antares-modular-next-gen-us-nuclear-reactor-critical/#:~:text=Modular%20next%2Dgen%20US%20nuclear%20reactor%20goes%20critical
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