Nuclear reactor constructions

[chalg]

Plot

Authors

Grant Chalmers

Links

github, LinkedIn, X

Full description

2025 Plotnine contest submission by Grant Chalmers.

Data for this visualisation is sourced from The Power Reactor Information System (PRIS). The Power Reactor Information System (PRIS), developed and maintained by the International Atomic Energy Agency (IAEA) for over five decades, is a comprehensive database focusing on nuclear power plants worldwide. PRIS contains information on power reactors in operation, under construction, or those being decommissioned. All information and data items are collected by the IAEA via data providers nominated by Member States.

This visualisation shows nuclear reactor construction times from first concrete pour to grid connection. Clearly there is significant planning time before each construction starts -these statistics are not captured and hence cannot be plotted. Reactors are ordered by grid connection date. Horizontal bars (geom_segment) are coloured by countries labelled in the legend, or are grey for other. The inset table shows summary statistics such as median days per Megawatt (MW) and median construction time in years. Vertical dashed lines show historical nuclear accidents (Three Mile Island, Chernobyl, Fukushima Daiichi).

Code repository

https://github.com/chalg/plotnine_contest_2025

[clarkstephen619-bot]

I recently visited a nuclear reactor construction site, and it was eye-opening to see the scale and precision involved in such projects. The quality of concrete used is critical for safety and structural integrity. From my experience, even small imperfections can lead to long-term issues, which is why thorough assessments are essential. This highlights the importance of services like Concrete inspection Melbourne, where experts ensure that every pour meets the highest standards. Having a reliable inspection team gives peace of mind, knowing that the structure is safe and durable for decades to come.

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