Among the earnings stories for Friday, May 4, from AP Business News:
— Duke Energy Corp. says its net income fell 42 percent in the first quarter because of cost overruns at a coal plant under construction in Indiana.
— Exelon Corp. said it earned $200 million in the first quarter, the company's first since its acquisition with Constellation Energy was completed.
— Consolidated Edison Inc. reported that its first-quarter earnings fell on weak revenue, but the utility stood by its profit outlook for the year.
- Constellation Energy