And as for the consented list, although some in the list are consented, that's not the full story, e.g. Wairau Hyrdo is consented, but according to Wikipedia is on hold. Looking at the consented list, a lot more are on hold as well.
Perhaps part of the reason they're on hold is that they are not yet required. I would think that getting consent to build a power plant is not quite the same as getting consent to build a garden shed. Having a consent sorted out years before you need to break ground is good planning.