I think we are past the point of no return. Several other European countries have a similar target to France with some more ambitious. Renault will stop making petrol and diesel only cars in 2019, VW are investing heavily in electric vehicles (following the emissions scandal) and most other major manufacturers are moving that way, probably scared by the success of Tesla!

I live in the UK are everywhere you look now there are solar and wind farms (and we don't even get that much sun). I believe the biggest issue with renewables is storage but battery tech is improving immensely and it's only a matter of time before the majority of power is locally generated and consumed, all by renewable means!