Joe Dominguez, executive vice president of government and regulatory affairs for Exelon, said the company is not abandoning organized markets but needs them to reflect the cost of carbon emissions for its nuclear fleet to survive.

“The work that we’ve seen from the RTOs — from PJM, even from ERCOT — indicate that with a relatively modest price on carbon we can achieve compliance with the EPA’s [Clean Power] Plan.”

Dominguez said he believes EPA will get the nuclear issue “half right” in the final emissions rule, due this summer.

“My guess is EPA is going to largely ignore the problem and hope that nuclear plants don’t retire,” he said.

But he predicted that EPA will “give substantial incentives for mass-based regional cooperative programs to achieve compliance.”

“And there, I think, nuclear is going to be fully recognized, because in any mass-based program the loss of nuclear units would quite obviously be reflected in an increase in the emissions as fossil fuel takes up the gap left by nuclear. That will self-correct.”