Serbia has reopened the debate about nuclear energy as policymakers and energy experts increasingly discuss whether the country could build its first nuclear power plant by around 2040, a goal that would represent one of the most ambitious infrastructure and energy projects in the country’s modern history. The idea reflects growing concerns about long-term electricity supply, decarbonisation pressures and the eventual retirement of aging coal-fired generation capacity.
The government has already taken initial steps toward exploring nuclear energy. Serbia lifted its long-standing moratorium on nuclear power development and launched the first phase of a national nuclear programme, which is being developed according to the methodology of the International Atomic Energy Agency (IAEA). The current objective is to complete this preliminary phase by mid-2027, at which point authorities expect to have enough technical and regulatory information to decide whether to proceed with a nuclear power project.
If the programme advances, the timeline envisioned by policymakers is long and complex. By 2032 Serbia aims to develop sufficient institutional, regulatory and technical capacity to select nuclear technology and start construction, which could potentially allow the first nuclear plant to be connected to the electricity grid around 2040.
The financial scale of such a project is substantial. Estimates suggest that developing a nuclear programme and building a first reactor could require roughly €10 billion in total investment, with at least €3 billion needed by 2035 to develop institutional frameworks, technical expertise and early project preparation.
Supporters of nuclear energy argue that Serbia will need a stable source of base-load electricity as the country gradually retires older coal-fired units and increases electricity consumption driven by economic growth and digital technologies. Nuclear plants typically operate with capacity factors close to 95 %, meaning they can produce electricity almost continuously and provide system stability that intermittent renewable sources cannot always guarantee.
From an energy-security perspective, nuclear power could also reduce Serbia’s reliance on imported fossil fuels and volatile energy markets. Officials often frame the nuclear option as part of a broader long-term strategy combining renewable energy, grid expansion and stable baseload generation.
However, the path toward a nuclear plant is far from straightforward. Serbia currently lacks many of the institutional and regulatory components required for nuclear energy. A comprehensive legal framework, independent nuclear safety authority, specialised workforce and waste management strategy would all need to be developed before construction could begin. These institutional requirements are often as complex as the engineering aspects of the project itself.
Another key issue is financing. Nuclear power plants are among the most capital-intensive infrastructure projects in the world. For a country with Serbia’s economic size, mobilising multi-billion-euro financing would likely require partnerships with foreign governments, technology vendors and international financial institutions. The choice of partners could also carry geopolitical implications, as several countries and technology providers are competing globally to supply nuclear reactors.
Technological choices will also influence the feasibility of the project. Serbia may consider conventional large-scale reactors similar to those operating in many European countries, or newer technologies such as small modular reactors (SMRs) that promise lower upfront costs and more flexible deployment. The development speed of these technologies over the next decade will strongly affect Serbia’s decision.
Public perception is another important factor. Nuclear energy remains controversial in many European societies due to safety concerns, waste management challenges and the legacy of past nuclear accidents. Any Serbian nuclear project would therefore likely require extensive public consultation and regulatory oversight to build social acceptance.
The discussion about nuclear power also reflects broader structural changes in Europe’s energy landscape. As countries pursue climate-neutral electricity systems, many are reconsidering nuclear energy as a complement to renewable sources. Several European governments are planning new nuclear investments or extending the lifetime of existing reactors to maintain stable electricity supply.
For Serbia, the nuclear debate ultimately raises a strategic question about the country’s future energy mix. Coal has long dominated electricity production through large lignite-fired power plants, but decarbonisation pressures and environmental regulations are gradually forcing a transition. Renewables such as wind and solar are expanding, yet their variability creates challenges for maintaining a stable power system.
Against this backdrop, nuclear energy is being considered as one potential pillar of a future electricity system that combines renewables, grid infrastructure and stable baseload generation. Whether Serbia ultimately builds a nuclear power plant by 2040 will depend on political decisions, technological developments, financing structures and the pace at which the country develops the institutional capacity required for nuclear energy.
For now, the timeline remains aspirational rather than guaranteed. But the discussion itself signals that Serbia is beginning to plan its energy system decades ahead, reflecting the reality that major power infrastructure decisions made today will shape the country’s economic and energy landscape for the next half-century.
