Four coal industry regulations from the Environmental Protection Agency (EPA) will likely cause electricity prices to rise and may “compromise” electric grid reliability — especially in the Midwest and South — according to the Government Accountability Office.

“Several representatives from power companies and officials from federal and state regulatory agencies have expressed concerns that as companies incur additional costs in responding to these additional regulations, and as the electricity supply is affected by generating unit requirements, electricity prices could increase and reliability — the ability to meet consumers’ electricity demands — could be compromised,” the GAO reported to Sen. Jay Rockefeller, D-W.V., yesterday.