Researched by Industrial Info Resources (Sugar Land, Texas)--Duke Energy Corporation (NYSE:DUK) (Charlotte, North Carolina reported progress on Thursday on a number of capital investment items, including work on the Atlantic Coast Pipeline, completion of a natural gas-fired, combined cycle power plant in South Carolina and the expected wrap-up of another large power plant project this summer in Florida. Within this article: Update on Atlantic Coast Pipeline Additional companies: Dominion Energy Incorporated (NYSE:D), Piedmont Natural Gas Company (NYSE:PNY), Southern Company (NYSE:SO)