Solution to Electric Energy storage ? Is this the solution? Let me know what do you think

So i was thinking about the problem of storing electrical energy as the solar panels don't work at night. Usually the solar energy is not stored at very large scale to power the grid as there is no practical solution which would work everywhere. Solar energy is stored in large batteries or stored in water by pumping the water on some elevation there by creating a potential energy.
I think the solution is to have a worldwide connected grid system. Like the Internet, we all on planet can be connected to each other by grid. Sharing solar energy with countries which are on the dark side of the earth. Instead of investing in nuclear or battery technology, i think we should invest in power cables and high power transmission systems. This way we don't need battery which are hard to recycle and require a lot of energy to create which causes a lot of pollution. I think it should be the focus of future instead of battery storage technology. Is this possible ? let me know what do you think.

PS : I know this might sound stupid. But let me know why it won't work. Or why no one is talking about this.

@Monil-Mansukhani How are you going to build the grid on an island?

@S_TANISH is there a reason we can't build it on an island? Because we have underwater cables to transmit power. Look at windmills on water.

Where are you going to get the money for all that? Instead of building underwater cables to transmit power to faraway islands, can't we just simply use nuclear or battery technology?

@S_TANISH As i said, Nuclear and battery tech is not going to last for ever. Nuclear is dangerous for long-term storage of its used material. And batteries are useless after a certain cycles. They are also not recyclable. So both are bad for the environment. Batteries are a temporary solution. While worldwide grid is going to be a effective and long term solution. Solar panels retain about 85% of their original capacity in the first 25 years of use. While battery and nuclear have a constant running cost to them as well. If we can have money for batteries and nuclear why not solar and WW grid?

@Monil-Mansukhani, The most important factor is that people dislike the idea of globalism. Also a lot of energy would just be wasted while being transferred. And in a way it would stifle the technology since nuclear energy and battery technology are our future without it the won't be much progress. Then also another problem could be if let's say a some big countries that are potent could declare war or could just stop giving energy to some country which they despise for political reasons (not saying this is likely but let's just suppose) this would have drastic consequences since we would not be able to store energy nor use energy, this is analogous interconnections as in ecosystems, with one specie perishing the whole ecosystem could tumble

What you are saying is many times epensive than nuclear and battery. It isn't as cheap as you think.

@ValiantPawn123 I agree. Also, if there is even a small problem with a part of grid, the whole grid will get affected, which may cause many problems.

@ValiantPawn123 The running cost and the investment of solar is so low that i think it would pay off the loses. For example in India the ROI is only about 2 years for very large solar farm. So even with 50% loses it would only be 4 years on ROI. I think it should be like buy and sell electricity. So countries which refuses to give electricity to others would have to buy them instead of getting it for free. Thereby making it hard to shut off the electricity.

@S_TANISH The grid can be divided into small sections. So only an individual section would fail instead of the entire grid.The return on investment period in India of very large solar farms is only about 2 years. So how expansive could it be ?