capacity margin

National Grid ESO says Great Britain’s electricity grid is expected to have sufficient operational surplus throughout winter. This year has a de-rated margin of 5.6GW (9.4%) which is higher than last year.

​National Grid ESO has once again issued an Electricity Margin Notice (EMN), its second this week and fifth this winter.

​Great Britain’s tumultuous energy week has continued, with system tightness leading to West Burton B being called at £3,000/MWh yesterday (6 January).

​Low winds and falling temperatures have caused power prices to spike this evening (26 November), as National Grid ESO warns of tight margins.

National Grid will have a greater power margin this winter than first expected, effectively putting to bed any fears over blackouts this winter.

Energy storage could have saved Britain from some of the economic and environmental impact of National Grid’s shortfall in energy capacity during Wednesday’s evening peak, according to one industry expert.