Labour leader Ed Miliband said "we will cross that bridge when we come to it" when asked whether energy prices could go up before being frozen for two years.
That sounds like a yes to me.
Mr Miliband was also asked about his poor personal poll ratings and admitted: "Of course it matters."
"Obviously I see myself as a future Prime Minister," he told Radio 4's Today programme, adding: "You keep your eyes on the prize".
As Ed Miliband clashes with the energy giants on prices, it is worth knowing how your expensive energy bills are actually made up.
A leading competition lawyer says an energy price freeze could leave Labour open to challenges from the courts or the European Commission.
Whether or not you approve of a state intervention into industry, there are at least two big potential obstacles for an energy price freeze.