ScottishPower has apologised unreservedly to customers affected by misselling by doorstep and telesales agents.
ScottishPower's chief executive of energy retail and generation, Neil Clitheroe, said he was "happy that this matter has now been concluded".
Mr Clitheroe said in a statement: "I am pleased that Ofgem has made it clear that they found no evidence of a strategy by ScottishPower to deliberately missell to customers.”
More top news
“Shocking” revelations over deaths at a hospital lead most of the papers.
Jens Stoltenberg has urged Western allies to bury their differences amid reports Donald Trump is preparing to meet Vladimir Putin.
Amanda Spielman will tell the Festival of Education she also supports schools that take a tough stance on unruly pupils.