I had the privilege of watching a bunch of (6 or 7) French engineers make an impromptu visit to the ticket desk (of the airline I worked for) at Charles de Gaulle airport and work their magic, running comms and power with no fuss, just teamwork and that brilliant "why not now?" European attitude.
Meanwhile back at Heathrow that would have taken months of permits and planning and dealing with useless subcontractors.
Were, things have gotten way less great since the 80s, it’s mostly coasted.
Too bad really: nuclear power was a way to gain independence (from the US and the oil) but then it kinda fell by the wayside as the country largely went with oil anyway (though the grid is both powerful and rather clean owing to the high ratio of nukes).
Would have been interesting for the country to ride the contrarian gallic spirit and decide to go all in on electricity and renewable way back then.