Cost overruns are a great argument even if you ignore the massive time overruns, which you can't. All those cost overruns factor into the electricty price forever. Flamanville has a 60 year lifespan for this reason and even then has an estimated cost of €138/MWh [1]. Compare that to Cestas at €108/MWh [2].

Go further south and Spain has recently been paying €25/MWh [3].

[1]: https://www.powermag.com/flamanville-3-europes-hard-won-nucl...

[2]: https://www.reuters.com/article/markets/currencies/new-frenc...

[3]: https://ratedpower.com/blog/spanish-government-solar/

Compare it to Swedish electricity prices in the winter which are around SEK 3/kWh, or roughly €300/MWh.

Are you offering to cut my energy bill in half? Yes please!