Lawmaker Lee Chul-kyu proposes Electricity Business Act amendment to reassess grid reliability standards
Lawmaker Lee Chul-kyu of the People Power Party proposed an amendment to the Electricity Business Act on September 3, 2026, to mandate periodic reviews of power system operation standards.
Our take
Would Korea's proposed review of grid reliability standards reduce curtailment for renewables?
Not directly, because a proposed bill only requires periodic ministerial reviews of grid operating standards, so curtailment relief for Korean solar and wind depends on passage and on a review relaxing those standards.
The review must weigh safety and power quality alongside grid constraints, so it can keep the current two-failure standard. What would change the answer is passage and the first ministerial review's finding for constrained regions.
What the source says
- Lawmaker Lee Chul-kyu proposed an amendment to the Electricity Business Act on September 3, 2026, to promote efficiency in grid operation.
- The current Electricity Business Act (Article 27-2) requires the establishment of power system reliability standards.
- The N-2 standard, which assumes two major grid equipment failures, has led to rigid grid operation since the 2011 rolling blackout, failing to reflect changing power supply conditions.
- This rigidity results in persistent transmission and generation constraints in some regions, underutilizing generation facilities and increasing social costs.
- The 7.0 GW maximum constraint projected for the East Coast region by 2025-2026 represents approximately 40% of its total 17.9 GW generation capacity.
- Solar curtailment events in the Honam region increased 1.8 times from 26 in 2024 to 47 in 2025, while wind curtailment surged 4.4 times from 16 to 69 events in the same period.
- The proposed amendment mandates the Minister of Climate, Energy and Environment to periodically review the appropriateness of power system operation standards.
- This review must comprehensively consider grid appropriateness, safety, power quality, supply capacity, grid constraints, transmission facility capacity, supply stability, and power supply costs.
For investors — Solar and wind developers in the south-western Honam region should keep curtailment assumptions on current operating standards and treat any relaxation as an upside case.
Lenders should size debt on current operating standards, since any change would come through a later ministerial review, not the bill itself.
Watch: Passage of the proposed amendment to the Electricity Business Act.
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