Agreed, it's amazing what you can do with an idealized grid. But that grid does not exist, and is still quite far away from ever existing. Meanwhile, the costs they present are for today.
When the public (and even policy makers who know should know better) see these numbers, they fairly assume that the sources are being measured by the same criteria.
4 hours is all that's necessary in a large grid that's well distributed and diversified.
Agreed, it's amazing what you can do with an idealized grid. But that grid does not exist, and is still quite far away from ever existing. Meanwhile, the costs they present are for today.
When the public (and even policy makers who know should know better) see these numbers, they fairly assume that the sources are being measured by the same criteria.