The Mail Online has reported in mid-January 2017 that Ovo Energy has come top in the latest table of energy firms based on customer satisfaction for the second year running.
The top end of the table, compiled by consumer group Which?, is dominated by smaller energy firms.
And Big Six provider Npower remains in the bottom spot with the lowest overall score for the seventh year running.
Ovo, which has around 690,000 energy customers and launched in 2009, received the top overall score of 78 per cent.
It was followed by Places for People with 76 per cent, which only started selling energy in October 2015, Ebico with 75 per cent and Flow Energy with 73 per cent.
Small energy firms featured heavily in the top end of the table and there were no Big Six firms in the top ten.
Npower did not fare so well and received an overall score of 44 per cent. It was followed by Extra Energy with 49 per cent, Scottish Power with 50 per cent, Co-operative Energy with 54 per cent and M&S Energy with 55 per cent.
Only a fifth of Npower customers said they were ‘very satisfied’ with the firm while many said it provided terrible value for money.
A spokesperson for Npower said: ‘Obviously we are disappointed despite the slight improvement on previous results. But it should be noted that the survey took place last year in the summer/autumn.
‘Other surveys, including our own internal customer satisfaction polling, show that we are much improved and continuing to head in the right direction.
‘We know we still have work to do and we are very determined to do better for our customers through competitive and innovative tariffs and improving service levels.’
The other big six companies fared similarly, with E.on achieving 57 per cent, followed by British Gas and SSE both with 56 per cent, EDF Energy with 55 per cent and Scottish Power with 50 per cent.
Between 2015 and 2016 two suppliers fell significantly down the list. Good Energy, fell from second to tenth place while M&S Energy, slipped nine places. Good Energy said that estimated bills are the main reason it receives complaints and it is making changes to the way it handles these in 2017