← AI-DC WebtoonEPISODE 02 · 2026.09.05

If a substation is nearby,
Is securing power enough?

Finding a nearby substation on a map is just the starting point. To determine a data center’s power schedule, you must also verify the grid’s available capacity, the connection timeline, live and standby circuits, the actual 154 kV feed-in route, and who is responsible for construction.

1 cut. AI-DC KOREA 웹툰 2화: 변전소가 가까우면 전력 확보가 끝일까? — 1 / 10 · AI-DC KOREA Webtoon Episode 2: Does Having a Substation Nearby Mean Power Supply Is Secured?

2 cut. 변전소와 부지가 가까워도 전력을 바로 사용할 수 있는 것은 아닙니다 — 2 / 10 · Even if a substation is located nearby, that does not mean electricity can be used immediately.

3 cut. 계통 여유용량이 없으면 가까운 변전소에도 접속할 수 없습니다 — 3 / 10 · If there is no spare capacity in the power grid, connection to even a nearby substation is not possible.

4 cut. 접속 가능 시점이 데이터센터 준공 일정과 맞아야 합니다 — 4 / 10 · The date when access becomes available must align with the data center’s completion schedule.

5 cut. 상용전력과 예비전력의 용량, 회선, 전환방식과 소유경계를 구분합니다 — 5 / 10 · Distinguish between the capacity, circuits, switching methods, and ownership boundaries of commercial power and reserve power.

6 cut. 154kV 인입은 직선거리가 아니라 실제 시공 가능한 경로로 검토합니다 — 6 / 10 · The 154 kV feeder connection is evaluated based on the actual feasible construction route, not the straight-line distance.

7 cut. 전기사용신청 접수부터 공급방안 확정까지 단계별 한전 협의가 필요합니다 — 7 / 10 · Consultation with KEPCO is required at each stage, from the submission of an electricity service application to the finalization of the supply plan.

8 cut. 토지비와 전력 연결비, 계통 보강비와 준공 일정을 총개발비로 비교합니다 — 8 / 10 · Compare land costs, power connection fees, grid reinforcement costs, and the completion schedule to the total development cost.

9 cut. AI-DC KOREA에서 주소를 기준으로 기본 부지분석을 시작합니다 — 9 / 10 · AI-DC KOREA begins a preliminary site analysis based on the address.

10 cut. 가까운 변전소보다 실제 공급 가능성과 연결 일정이 중요합니다 — 10 / 10 · Actual supply capacity and connection schedules are more important than the proximity of a substation.

Key Points

Check availability and connection schedules rather than distance.

Even if a substation is nearby, the data center development schedule may not be feasible if there is no remaining capacity in the power system or if the wait time for connection and reinforcement work is prolonged. Commercial power and reserve power must be verified separately in terms of capacity, circuit configuration, switching methods, metering, and ownership boundaries; the total capacity should not be interpreted as IT load that can be used simultaneously.

The 154 kV service line must be evaluated based on the actual route—which takes into account roads, ditches, right-of-way occupancy, public complaints, and construction conditions—rather than the straight-line distance on a map. Since the receipt of an electricity service application does not guarantee supply, documentation must be managed on a step-by-step basis until the connection point, scope of work, fees, and estimated supply start date are confirmed.

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