National Grid’s proposals follow a trial in conjunction with Octopus
Energy. In the pilot about 100,000 customers were given a day’s notice to cut their consumption during peak times such as 4.30pm to 6.30pm, when demand is highest in the UK.
Octopus said that the average household saved 23p in each two-hour period, with some consumers saving as much as £4.35.
Sources close to the scheme said consumers had regularly followed the advice to cut their usage during the suggested periods. There had been concerns that National Grid would not be able to rely on consumers taking up the offer.
National Grid has asked other suppliers to assess how much customers could cut back on their usage at peak times.