The news to me in this article is the the thermal plants, though built and working; are being purchased to be torn down and replaced with photo-voltaic.
So they are being scraped because the site and approvals are valuable; presumably.
That illustrates the folly of providing massive subsidies, for production-scale projects based on emerging (unproven) technologies. If a large number of pilot projects had been funded, for R&D purposes, it is likely that some expensive boondoggles could have been avoided.