I`m half expecting a leaflet drop telling us how to make a Woolton Pie or 101 uses for a tin of corned beef. I jest but on a serious note the energy companies must know there are going to be many many people who simply cannot afford their energy bills and no matter how much they try to cut back. A £ will only stretch so far and as much as they can send lots of letters, umpteen phonecalls or threats of debt collection, they will have to jump through hoops to be able to disconnect you.
They can`t force entry into your house without applying for a warrant and they can`t force you to change to a pay as you go meter even though they try to make out that they can and as long as you can show them it`s financially impossible to clear your current bill before the next bill is due, then they have to allow you to carry debt over as long as you are paying what you can and sticking to the monthly/weekly agreement.
No doubt it will be a massive worry for many but those they class as vulnerable ie people with young children, the elderly and those who are disabled or housebound will have extra protection against disconnection.