Solar and wind energy are, by definition, non-firm.
That is to say, they depend on a backup of firm energy sources. In other words, they are two investments that add up so that non-firm energy sources can be "accommodated" in the independent system operator (ISO).
Regardless of who makes the investments, looking at it as a whole, non-firm energy represents an order of magnitude double the investment ("capex") compared to firm energy sources.
Non-firm energy sources depend on the electrical grid to "survive." Therefore, even the fact that they may be located "near" consumer loads cannot and should not be a reason to justify them.
Furthermore, "curtailment" arose as a consequence of the intensified presence – in selected regions – of non-firm energy sources.
What will we prefer: to evaluate the system holistically or to pretend nothing is happening?