Per the International Energy Association: What is the role of nuclear power in clean energy transitions? Nuclear power accounts for about 10% of electricity generation globally, rising to almost 20% in advanced economies. It has historically been one of the largest global contributors of carbon-free electricity and while it faces challenges in some countries, it has significant potential to contribute to power sector decarbonisation.

Why does it matter to energy security? Nuclear power plants contribute to electricity security in multiple ways by keeping power grids stable and complementing decarbonisation strategies since, to a certain extent, they can adjust their output to accompany shifts in demand and supply. As the share of variable renewables like wind and solar photovoltaics (PV) rises, the need for such services will increase.

What are the challenges? Nuclear power faces a contrasted future despite its ability to produce emissions-free power. With large up-front costs, long lead times and an often-poor record of on-time delivery, nuclear power projects have trouble in some jurisdictions competing against faster-to-install alternatives, such as natural gas or modern renewables. It also faces public opposition in many countries. Its uncertain future could result in billions of tonnes of additional carbon emissions.

https://www.iea.org/energy-system/electricity/nuclear-power

Do note: There are countries other than the US and France who license nuclear technologies and build-outs. There are innovative technologies by US companies that work with modern regulations and are faster and less expensive to build. We must stop citing US nuclear build times that are largely due to outdated regulations and hostile review processes.

Well, every cloud has a silver lining