The Drax report they link to (which has some nice photos of the Star Wars set from the recent Andor series) suggests when you net off the avoided support payments, that you save between 1/3 and 2/3 thirds of the cost when you curtail wind, rather than pay twice for it:
https://www.drax.com/wp-content/uploads/2022/06/Drax-LCP-Ren...