They are finalising the full nationalisation of EDF, their main electricity supplier and owner/operator of their nuclear power plants.
Then, the electricity wholesale price on the open market becomes irrelevant. As long as their set a price that covers their actual costs for their own consumers they are fine and it is sustainable, and certainly does not require any debts since it does not actually cost anything (beyond the cost of buying the remaining 20% of EDF).
Then, the electricity wholesale price on the open market becomes irrelevant. As long as their set a price that covers their actual costs for their own consumers they are fine and it is sustainable, and certainly does not require any debts since it does not actually cost anything (beyond the cost of buying the remaining 20% of EDF).