This story was originally published on Utility Dive. To receive daily news and insights, subscribe to our free daily Utility Dive newsletter. Vistra Corp. has reached a final investment decision to expand gas capacity at its Permian Basin Power Plant, locking in a plan to build two new natural gas power units totaling 860 MW, the company said Monday. “This expansion more than triples the site's current capacity from 325 MW to 1,185 MW,” Vistra said in a release. The decision to expand was “based on custome ...