Britain's grid manager tapped France for as much as 1,200 megawatts to flow through an undersea interconnector on Monday evening. The call came after the planned return of a power-system asset was pushed back, trimming the system's available capacity earlier that afternoon, according to NESO's post on X.
Cross-border power flows are what keep the lights on during outages. Market Briefs covers energy infrastructure free every morning.
In recent months, NESO has leaned more on day-ahead limits for interconnectors to keep the lights on, a shift that followed a June episode where the system came under unusual strain while exporting electricity to neighboring countries. On Monday, though, it reached for a different lever that can shore up supplies within minutes, as reflected in market notices.
NESO emphasized two things: "Emergency Assistance are formal operational tools available to system operators when immediate action is required to maintain system security," and "Electricity supplies remained secure throughout and there was no interruption to customers." Translation for households and small businesses: no outages, and a reminder that cross-border cables and operator playbooks are there to backstop tight moments.
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