EDF said it has learned its lessons from those schemes.
EDF insists it is learning from its mistakes, and Areva will not ultimately crash and burn because it is protected by the French state, which is still its major shareholder.
EDF said it had hired Barclays Capital and Deutsche Bank to advise it on the possible deal, and BNP Paribas will also provide support.
A spokeswoman for EDF said it was possible that its subsidiaries were involved in the report, but she had no details.
Over the weekend, EDF said it could hold off increasing bills until 2015, having raised its prices less than other firms in anticipation of government action to cut levies.
Energy firm EDF says it wants local firms and workers fully involved.
In the trial, EDF said it had victim of overzealous efforts, and had been unaware anyone would hack a computer.
EDF said it supports the right to protest, but said a civil action against protesters was necessary.
In a statement, EDF said it was "extremely disappointed and shocked to learn that Constellation has unilaterally decided to withdraw from the Calvert Cliffs 3 project".
EDF said it was "registering interest" from customers, but was not yet in a position to offer a deal while it performed further checks on its systems.
