Top Questions Singaporeans Ask About Nuclear Energy Answered

Nuclear energy has become an increasingly important topic in Singapore’s conversation about the future of electricity, climate change, and energy security. For decades, Singapore has relied heavily on imported natural gas to generate electricity, while solar power, electricity imports, hydrogen, and other low-carbon technologies are being explored as part of the country’s energy transition. Nuclear energy is now another option being studied, particularly as newer technologies such as Small Modular Reactors (SMRs) develop. However, Singapore has not decided to deploy nuclear power, and the Government is taking a careful, long-term approach before making any decision.

For many Singaporeans, nuclear energy raises practical questions. Is nuclear power safe for a densely populated city-state? Can Singapore even build a nuclear power plant given its limited land? Would nuclear electricity reduce carbon emissions? What would happen to radioactive waste? And when could Singapore actually have nuclear power? Here are the answers to the most important questions.

1. Is Singapore planning to build a nuclear power plant?

Not yet. Singapore is studying whether advanced nuclear energy technologies could potentially be suitable for the country, but no decision has been made to build or deploy a nuclear power plant.

The Energy Market Authority (EMA) says nuclear energy is being studied as a potential low-carbon energy source that could strengthen Singapore’s long-term energy security, cost competitiveness, and resilience. The Government is building the expertise needed to assess nuclear technologies objectively rather than committing to deployment.

Singapore will begin Phase 1 of the International Atomic Energy Agency’s (IAEA) Integrated Nuclear Infrastructure Review (INIR) Mission in 2027. This review will examine Singapore’s readiness across 19 areas, including nuclear safety, radioactive waste management, emergency planning, and regulatory capabilities.

2. Why is Singapore considering nuclear energy?

The biggest reason is energy security combined with the need to reduce carbon emissions.

Singapore currently obtains about 95% of its electricity from imported natural gas. This dependence exposes the country to international fuel prices and potential supply disruptions, while natural gas remains a fossil fuel that produces carbon dioxide.

Solar power is another major part of Singapore’s energy strategy, but the country's limited land area places a natural ceiling on how much electricity solar can provide. According to the Ministry of Sustainability and the Environment, even at maximum deployment, solar is expected to provide less than 10% of Singapore's electricity demand by 2050.

Nuclear power is therefore being studied as one possible source of reliable, low-carbon electricity that could complement other technologies.

3. Is nuclear energy safe?

Safety is the most important consideration. Singapore has repeatedly stated that any potential nuclear deployment would have to meet stringent safety requirements.

Modern nuclear reactors incorporate multiple safety systems designed to prevent accidents and limit their consequences. Singapore is particularly interested in advanced nuclear technologies, including SMRs, which are designed with additional safety features and smaller reactor sizes.

However, it would be misleading to say nuclear energy has zero risk. Nuclear power involves radioactive materials, complex engineering, emergency planning, security requirements, and long-term waste management. Singapore therefore needs to determine whether the risks can be managed to an acceptable standard within its densely populated environment. EMA has specifically described safety as an overriding priority because of Singapore's circumstances as a small and densely populated city-state.

4. What are Small Modular Reactors?

Small Modular Reactors, or SMRs, are smaller nuclear reactors designed to be manufactured and deployed in modules.

Unlike traditional large nuclear power plants, SMRs generally have a smaller generating capacity and can incorporate newer safety systems. Their smaller physical scale could potentially make them more suitable for countries where land availability is a major constraint.

Singapore is particularly interested in understanding whether SMRs could address some of the challenges associated with nuclear energy in a compact city-state. However, many advanced SMR technologies are still being developed, tested, or evaluated, meaning Singapore must consider technology maturity as well as safety and economics.

Singapore has also begun international cooperation to strengthen its understanding of SMRs. In March 2026, EMA signed a cooperation agreement with Korea Hydro & Nuclear Power to conduct joint studies, develop expertise, and share technical information relating to SMRs.

5. Could nuclear power work in land-scarce Singapore?

This is one of the most difficult questions.

Singapore's limited land and high population density mean that a nuclear facility would face different requirements from one located in a large, sparsely populated country. Safety zones, emergency planning, cooling requirements, infrastructure, security, transmission connections, and waste management would all have to be carefully considered.

This is one reason advanced reactors such as SMRs are receiving attention. Their smaller size and potentially smaller emergency planning considerations could offer advantages, although these benefits must be demonstrated through rigorous technical and regulatory assessment rather than assumed.

6. Would nuclear energy help Singapore fight climate change?

Potentially, yes.

Nuclear electricity generation produces very low operational carbon emissions because reactors generate heat through nuclear fission rather than burning fossil fuels. This makes nuclear energy a potential tool for reducing emissions from electricity generation.

Nuclear power also provides electricity regardless of whether the sun is shining or weather conditions are favourable. That reliability could complement intermittent renewable energy such as solar.

However, nuclear power would not eliminate Singapore's need for other energy solutions. Singapore's energy strategy is based on diversification rather than depending on a single technology. Nuclear, solar, hydrogen, electricity imports, natural gas, and other technologies each have different advantages and limitations.

7. What happens to nuclear waste?

Radioactive waste is one of the most important issues Singapore would need to solve before deploying nuclear energy.

Nuclear facilities produce radioactive materials that must be carefully handled, stored, transported, and eventually disposed of or managed over long periods. Spent nuclear fuel requires particularly stringent management.

Singapore currently has no nuclear power plants and no research reactors, so it does not have an inventory of spent nuclear fuel from nuclear power generation.

If Singapore ever chooses nuclear power, radioactive waste management would need to form part of the country's regulatory and infrastructure planning from the beginning. The IAEA's INIR framework specifically considers radioactive waste management when assessing nuclear infrastructure readiness.

8. Would nuclear electricity be cheaper?

There is no simple answer.

Nuclear power can provide large quantities of reliable electricity, but nuclear projects can involve significant upfront costs, complex construction, regulatory requirements, and long development periods. New technologies such as SMRs are intended to improve flexibility and economics, but their commercial performance needs to be demonstrated.

For Singapore, affordability would therefore be assessed alongside safety, reliability, environmental sustainability, technology maturity, and energy security.

EMA has explicitly stated that any decision on nuclear energy would need to consider safety, reliability, affordability, and environmental sustainability within Singapore's specific context.

9. When could Singapore have nuclear power?

There is currently no confirmed date because Singapore has not decided to deploy nuclear energy.

The immediate focus is capability building and assessment. The planned IAEA INIR Phase 1 Mission in 2027 will help determine whether Singapore has the expertise, institutions, and frameworks needed to make an informed decision.

Importantly, Phase 1 does not mean that Singapore has decided to build a reactor. Even countries that ultimately choose nuclear power must go through additional stages of planning, regulation, procurement, construction, commissioning, and operation.

10. Does studying nuclear energy mean Singapore will definitely adopt it?

No.

This distinction is essential.

Singapore is studying nuclear energy because energy decisions made today can affect the country's security and sustainability for decades. Preparing expertise does not mean that deployment has already been approved.

The Government has also acknowledged that future studies could conclude that nuclear energy is not the right option for Singapore. The purpose of the current work is to ensure that Singapore has enough knowledge and capability to make an informed decision when the time comes.

The Bottom Line for Singaporeans

The nuclear energy discussion in Singapore is ultimately about choice and preparedness. Singapore needs reliable electricity, greater energy resilience, and lower-carbon energy sources while operating within severe land and resource constraints. Nuclear energy could potentially contribute to those goals, but it also introduces significant responsibilities involving safety, regulation, waste management, emergency preparedness, cost, and public confidence.

For now, Singapore is taking a cautious approach. The country is studying advanced nuclear technologies, strengthening its technical capabilities, cooperating with international partners, and preparing for the IAEA's 2027 review.

The most accurate answer to the question "Will Singapore go nuclear?" is therefore we do not know yet. What we do know is that Singapore wants to be prepared to make that decision based on evidence rather than assumptions. If advanced nuclear technology proves sufficiently safe, reliable, affordable, and environmentally sustainable for a densely populated city-state, it could become one part of Singapore's future energy mix. If it does not meet those requirements, Singapore can pursue other pathways.

That measured approach matters because Singapore's energy future will not depend on one perfect solution. Instead, the country is building a diversified portfolio designed to balance energy security, affordability, and sustainability while working towards its longer-term climate goals. Nuclear energy is one possibility being carefully evaluated—not a decision that has already been made.

While Singapore is a nuclear-free zone, understanding potential radiation risks is crucial. Our detailed guide explores these risks, outlines Singapore's safety frameworks, and highlights singaporenuclear.com as a key resource for PPE and radiation hardware for enhanced preparedness.