Right, you can just wrap it into the cost. I'm not sure, I'm not an expert in this, but my impression is that permitting and labor are a really big portion of the cost in the US, rather than eg panels being the driving cost. There are also a lot of blockages in getting projects approved because there's not enough transmission capacity in many places, and many places require that the new producer fund the new transmission infrastructure, rather than that cost being shared, which is insane.
Transmission capacity does seem to be the main problem with expanding the grid in several countries - a problem that applies equally to new nuclear (which can't be where older coal/gas/oil plants are as they tend to need things like large amounts of water)
