Czech officials are pushing to site a small modular reactor at the coal-fired Dětmarovice power plant only a few hundred metres from the Polish border, turning a regional energy project into a test of cross-border trust, environmental approvals and the pace of Europe’s nuclear build-out.
Czech Republic Plans SMR at Dětmarovice Plant

The economic significance is less about one reactor than about whether Central Europe can add new firm, low-carbon power near existing industrial infrastructure without triggering years of legal and diplomatic friction. Jan Sechter, the Czech deputy industry minister, said Prague wants SMR projects concentrated where technical expertise, skilled labour and industry already exist, and estimated the certification process could still take six to seven years. That timetable underlines how far SMRs remain from commercial scale, despite the political momentum around nuclear power as Europe seeks to bolster competitiveness and energy security.
For investors, the story matters because it affects the pace at which nuclear developers, utilities and suppliers can translate strategic interest into revenue. If the Dětmarovice site advances smoothly, it would support the case for SMRs as a replicable solution for replacing coal capacity and serving industrial demand. If Poland objects, or if transboundary environmental procedures drag on, the project would reinforce the view that SMRs face the same permitting, public acceptance and geopolitical hurdles that have slowed larger nuclear projects.
The choice of location is also economically loaded. Dětmarovice is one of the Czech sites under consideration precisely because it already has industrial know-how and an energy workforce, which lowers execution risk relative to a greenfield build. But its proximity to Polish municipalities such as Godów makes the project inherently political. Polish lawmakers have already raised concerns over the lack of direct information from Czech sources, while Warsaw’s environment authorities are monitoring the issue through a bilateral working group on cross-border environmental assessments.
That makes “trust and dialogue,” as Sechter put it, more than diplomatic phrasing. The project sits at the intersection of energy transition, regional industrial policy and local environmental politics. For the Czech Republic, SMRs offer a path to preserve power supply after coal. For Poland, they are a reminder that nuclear development in one country can carry planning and social consequences in another.
The next catalyst is not construction but procedure: site selection, environmental review and cross-border consultations. Any sign that Prague and Warsaw can keep the process technical rather than confrontational would improve the odds for the wider Central European SMR pipeline. Any escalation in local opposition or diplomatic irritation would slow that pipeline and underline how nuclear expansion in Europe remains as much a governance challenge as an engineering one.
| Entity | Gains | Losses |
|---|---|---|
| Czech utilities / SMR developers | ▲Access to existing industrial sites | ▼Longer permitting risk |
| Czech government | ▲Coal replacement option | ▼Diplomatic friction if mishandled |
| Polish border communities | ▲Potential cleaner regional air | ▼Environmental and safety concerns |
| Nuclear suppliers | ▲Pipeline visibility | ▼Project delays from approvals |




