National Grid warns of tight electricity supplies this winter
Posted 3 years ago | 2 minute read
National Grid warns of tight electricity supplies this winter
Britain faces tight electricity supplies this winter on rising demand and capacity constraints, National Grid has said.
In its Winter Outlook report, published on 7 October, the system operator said its base case for de-rated margin, which is a measure of the amount of excess capacity expected above peak electricity demand, is currently 3.9GW for winter 2021-22, or 6.6 % of capacity, down from 4.8GW, or 8.3% last winter. Tight margins are likely throughout December to mid-January. The latest forecast, is lower than a winter margin forecast of 4.3GW made in July this year and also the lowest margin level since the winter of 2016-17.
National Grid said it expects to issue a similar number of electricity margin notices (EMNs) this winter as last year, when six were issued. In each instance last winter, the market reacted and the EMNs were later cancelled.
Source: National Grid
In a statement accompanying the report, Executive Directive of ESO Fintan Slye said “We are confident that there will be enough capacity available to keep Britain’s lights on,”
Mark Davis, GridBeyond’s Managing Director UK & Ireland, said: