If china and EU Will take over the world then rubles and dollars Will be Like simbawe dollars nobody really don't need it and oil countries economy Will fall down a lot.
Green energy, not as easy as you say and imagine, is used all over the world, even though some countries have abundant natural resources, apart from Green Energy requiring a large economy, other factors must also be considered.
Example:
Overall Green Energy has technical weaknesses for Green Energy and also other factors, such as required storage such as batteries so that they are not wasted, weather factors, because Green Energy is taken from various natural resources, plants, water and so on, not to mention the capacity of Green Energy users such as companies that require large amounts of electricity, I'm sure Green Energy can't handle all that.
China & EU can't shake the world, if you talk about Energy, oil and economy, the world has what China & EU don't have, they can't rule the world.
I agree with you, it is still too early for China and the EU to beat America and Russia in terms of energy sources, in general they have great power and many countries need energy sources and these two countries contribute greatly as oil energy suppliers, so it is still far to be able to overtake or even replace the main energy source to become alternative energy like this green energy, but to become a rival in the future does not rule out there will be intense competition between the two, all of them are countries that have great power in this regard.