It'd be great if AI is powered entirely by renewables, but how trustworthy is that target?
Companies and politicians are known to drag their feet switching to renewables or use greenwashing to show they care more about climate than they actually do.
There's a similar project that would supply power from Australia-Asia that spans 4,600 km when completed. But such big projects could easily be caught up in various delays, and it's a problem if a country is too dependent on a single power link. Self-reliant renewable energy production definitely seems more secure.