Millions of households face paying an average of £47 a year more from October after the regulator announced it was increasing its energy price cap for prepay and vulnerable customers for the second time this year.
Some customers who previously switched away from energy firm Iresa have been wrongly told their supply will soon move to Octopus Energy following Iresa's collapse - if you've been contacted in error, here's what to do.
Beleaguered energy supplier Iresa, which has tens of thousands of customers, has ceased trading. Customers' energy supplies will continue as normal under regulator Ofgem's safety-net rules, and outstanding credit balances will be protected - here's what you need to know.
The Competition and Markets Authority has said heat networks must be regulated following a seven month study into whether customers are getting the right level of protection.