South Africa clears 504 days without load shedding as Nigeria and Malta rebuild grid hardware

Eskom said South Africa had recorded 504 consecutive days without load shedding since 16 May 2025. The utility put its year-to-date energy availability factor at 68.11%.

The streak has held even though the generation fleet was available just over two-thirds of the time on Eskom's own measure. A 504-day run without rotational cuts alongside a 68.11% availability factor points to demand and reserves balancing without the fleet operating near full capacity. If that availability factor climbs above 68.11%, reserve margins would widen beyond the level that has carried the current run.

A different constraint is in view further north. Nigeria has begun work on a new national grid control facility to replace a National Control Centre about 64 years old. According to the government, the existing centre no longer meets the technical requirements of managing an increasingly complex interconnected power system. If the replacement advances, the 64-year-old facility it is meant to retire would move toward decommissioning.

A separate Nigerian proposal would concentrate 24-hour, uninterrupted electricity supply in high-demand commercial and industrial hubs. Targeting round-the-clock power to selected hubs would prioritise industrial and commercial load over uniform national coverage.

In Malta, the constraint is physical linkage rather than generation or control systems. Enemalta launched the first stage of procurement for the manufacture and installation of two new 33kV submarine electricity cables.

Three systems, three bottlenecks: available capacity in one, control-room age in another, and submarine interconnection in the third. The reliability gains in South Africa rest on keeping more of the fleet online, while the work in Nigeria and Malta targets the hardware that carries and manages power once it is generated.