SUGAR LAND--June 14, 2016--Written by John Egan for Industrial Info Resources (Sugar Land, Texas)--The recent decision by Exelon Corporation (NYSE:EXC) (Chicago, Illinois) to prematurely close two nuclear plants in Illinois that operate as merchant generators is the latest sign of the difficulties facing merchant nuclear Power plants. And it may be a harbinger of things to come for the Illinois-based company, which operates more nuclear generation than any other U.S. utility. With market rules limiting the potential profitability of merchant generation, mostly because those generators typically do not receive capacity payments, Exelon plans to invest more heavily in its electric and gas transmission and distribution (T&D) businesses than its merchant power-generation business. Within this article: Lists the largest dollar-value Exelon projects that Industrial Info is tracking.