Since 2005, older people have seen their energy bills more than double.
In 2005, the average annual spend was £668.98, compared to £1,355.90 last year, research from Saga has found.
The report said that the over 65s spent an estimated £17.4 billion on electricity and fuel bills in 2012.
More top news
A toddler survived for days on his own after his mother collapsed and died as she fed his one-year-old brother - who also choked to death.
A police officer has won a legion of fans after a picture of him comforting a baby girl caught up in a horror car crash went viral.
A mother has claimed that she was left a spiteful note from fellow diners accusing her son of "ruining" their meal with his screaming.