The CEO of Exelon Corp., one of the nation’s largest electric utilities, is calling for a carbon cap in a new national TV ad.

This comes just a day after Rep. Mike Pence (R-Ind.), who is leading GOP efforts to kill the House climate and energy bill, told business leaders who want climate action to “keep their powder dry.” (We wonder how that strikes Rowe, who has donated $10,000 to the National Republican Congressional Committee for each of the past two years.)

“I’m a utility CEO — not who you’d expect to be for a cap on carbon pollution,” says Rowe in the ad. “But a smart cap will overhaul our economy by shifting us toward clean, American-made energy. And a smart cap will control costs and protect your family’s budget.”

Exelon is a member of the U.S. Climate Action Partnership, a coalition of corporations and environmental groups pushing for cap-and-trade legislation to address climate change.

The ad, paid for by the Environmental Defense Action Fund, started airing today on CNN, MSNBC, and other national cable channels, and will run on the Sunday political talk shows on network TV. It will be accompanied by online and print ads in various D.C. publications, according to Tony Kreindler, media director for climate at EDF.

Watch the ad: