British Gas, Ovo, EDF paying customers to turn off appliances tonight birminghammail.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from birminghammail.co.uk Daily Mail and Mail on Sunday newspapers.
National Grid s Interconnexion France-Angleterre (IFA) 44 mile cable under the Channel has not been running at full capacity for more than a year after a blaze at its Kent substation.
The National Grid, which manages supply and demand of energy in the UK, hopes at least one million homes with smart meters will sign up to its so-called demand flexibility service scheme