Mississippi Power Co. has altered plans for a $2 billion plant in Kemper County to make it meet anticipated federal guidelines.
The plant will now be designed to capture 65 percent of carbon emissions from converting lignite to gas fuel.
The original plan was to capture half of the carbon that would be stored underground, said Todd Terrell, the utility's director of corporate communications.
Terrell said the change was a preemptive move because the next round of U.S. Department of Energy grant funding would hold applicants to the 65 percent standard.
The utility already has received a $270 million DOE grant and $133 million in investment tax credits under the National Energy Policy Act of 2005.