I know nothing about this topic, but it seems like maybe this comment and the parent don't disagree.
If most power generation is blocked by a lack of connectivity to the grid then it would stand to reason that most projects are abandoned or fail as they've no path to entering service (unless I've misunderstood).
I had the same reaction as the comment you are replying to.
I read the first comment quite literally. That there is over 900 GW of power that currently exists but just needs to be “hooked up”. i.e. a solar farm that is built, but through some bureaucracy there’s no line running from it to the grid.
With the context of the reply, that is not the case. Most of the cited 900GW isn’t even built yet. This seems like an important distinction when considering the scope of work needing to be done.
If most power generation is blocked by a lack of connectivity to the grid then it would stand to reason that most projects are abandoned or fail as they've no path to entering service (unless I've misunderstood).