Grid-managed substation
saturated substation
A grid-managed substation is one designated as saturated, where new generation is barred from connecting.
Where renewables cluster, substations and the transmission grid above them fill up. The government and KEPCO designated such substations as 'grid-managed' and stopped new connections there.
The designation was lifted for the Honam region on 1 October 2026, with new applications from January 2027. But 41 of Honam's 87 substations are already full and will open in stages over 2028–2030, so lifting the designation does not mean instant connection everywhere.