If Putin closed the gas valve for Europe by tomorrow how would you the beneficiaries in Europe, be affected?

Sensible question on an important topic N2.

I hope Western Europe is in a scramble to find alternate fuel sources; North Sea, or where ever.

As you know, Russia has ALREADY shut down the Gazprom spigot before.

And yes indeed, the threat is there that it'll do so again.

Putin has some (Cold War) skills, Crimea and Ukraine for examples.
But he's a twit about economics; a genuine $twit.

When Mitt Romney ran the Olympics in Utah, he actually turned a $profit (as opposed to a $prophet, what some might expect in Salt Lake City).

Putin lost about $45 $Billion on the Olympics he hosted.
And he's more than lost any good will he might have purchased with it; with his armed thugs.

What do you think N2?

I'm hoping Western Europe will get enough non-Russian fuel / energy sources to be able to box Putin / Russia in:

You sell Western Europe what you've got at bargain price for Western Europe will take our business elsewhere.

That would clobber the Russian economy, which depends on its third-world economy (plundering natural resources, rather than value add: turning sand into computer chips).

They could buy some slightly used nuclear fuel rods from Japan.