Surprised there was no thread for Centrica given the market share and name recognition of British Gas. Centrica also own energy supply businesses in the US and Ireland. They are trying to sell their stake in Spirit Energy - an oil and gas production firm, and their stake in EDF’s UK nuclear plants.
Down ~18% today after announcing a £1.1B annual loss. Largely due to write downs on the parts of the business they’re trying to sell. British Gas itself is profitable, but those are falling due to the price cap and continued (but slowed) customer losses. - Centrica plc (CNA.L) Stock Price, News, Quote & History - Yahoo Finance
Centrica had their profits fueled by complacency for too long, essentially scamming the elderly and the vulnerable. I have enjoyed seeing them suffer.
If you are with British Gas, you should switch. Even if you are in rented accommodation, your landlord is unlikely to object. Message me and join bulb. Or join basically anyone else.
Centrica plc 
(£CNA)