Mr Clare moves on after 12 years with Centrica-owned British Gas and four as the managing director of the residential division, a period in which the business has suffered from customer account switching and consequentially financial losses.

The outgoing residential division MD has also presided over an era of price hikes, including a 22% increase to domestic bills in February. However despite such recent measures, parent company Centrica still made a loss of GBP75 million in the second half of 2005.

However, Centrica’s chief executive Sir Roy Gardner has praised Mr Clare for his running of the residential department in a difficult time of volatile wholesale gas prices. The Centrica CEO added that he understood Mr Clare’s desire to take up a chief executive position elsewhere.

Mr Clare will leave British Gas in September.