Okay so let me go over this again as I have an idea...
Nation that's struggling with dependency on petroleum and unreliable supply chain turns to renewable energy. The solar energy is clean, reliable, requires little maintenance, and is helping that country become less reliant on foreign petroleum.
If that works for Cuba, a tiny nation with few resources, perhaps it would work in other more wealthy nations also. Perhaps if a nation were, say, reliant on petroleum to the point that they start multiple multinational wars to ensure their own access to oil, costing literally $trillions, it might be cheaper to put some or all of that money into renewable energy. Presumably China will sell their solar panels to whoever's buying, yes? So why wouldn't a larger, more developed country purchase them in great quantity so spending $trillions on military actions in the Middle East would no longer be necessary?
If a country like this has some of their own domestic oil production, wouldn't it be a desirable future to just walk away from the Middle East entirely, let the oil assholes kill each other without our involvement, and run the country for a few decades on sunshine? Use that money to buy solar panels literally by the boatload / container-ship-load (or buy the tech and manufacture them ourselves), and then national security is improved through removing foreign dependencies?
Or is this just crazy talk?