South Korea Raises 2040 Power Forecast to Fuel AI and Chip Ambitions

South Korea is bracing for a massive spike in electricity consumption as it aggressively expands its high-tech infrastructure. The Ministry of Climate, Energy and Environment has unveiled a revised power demand forecast that signals a critical need to overhaul the national energy grid to support the country's industrial ambitions.

As part of the 12th Basic Plan for Electricity Supply and Demand, the government now predicts that annual electricity consumption by 2040 will reach between 657.6 terawatt-hours (TWh) in a baseline scenario and 694.1 TWh in an upward scenario. This new projection is approximately 70 TWh higher than the 624.5 TWh forecast for 2038 established in the previous 11th plan. Officials attribute this surge primarily to the rapid proliferation of AI data centers, the development of massive semiconductor clusters, and the broader electrification of transport and heating systems.

The Push for Tech Supremacy

This revision comes as South Korea pursues "Mega Projects" to maintain its global edge in the semiconductor and AI sectors. This domestic shift mirrors a global trend identified by the International Energy Agency (IEA) as the "Age of Electricity," where the dual pressures of carbon neutrality and AI integration are creating unprecedented power requirements.

However, these industrial goals are colliding with strict environmental mandates. South Korea has committed to a 2035 Nationally Determined Contribution (NDC) to reduce greenhouse gas emissions by 53% to 61% compared to 2018 levels. Balancing the energy-intensive nature of chip fabrication and AI training with these climate targets has created a complex policy deadlock.

Strategic Energy Dilemmas

The surge in demand highlights a growing tension between economic growth and sustainability. Because renewable energy sources are intermittent and the government is phasing out coal and liquefied natural gas (LNG), the state faces a strategic choice: rapidly scale nuclear power or risk energy shortages that could bottleneck high-tech growth.

Professor Jeong Yong-hoon of KAIST noted that as the semiconductor and AI industries expand, the need for large-scale, uninterrupted power will inevitably grow. He emphasized that stable power sources are essential to compensate for the physical limitations and intermittency of renewables. Similarly, Professor Yoo Seung-hoon of the Seoul National University of Science and Technology described the current challenge as the difficulty of pursuing carbon neutrality, energy security, and economic growth simultaneously.

Future Outlook

Moving forward, the government must determine how to bridge the 70 TWh gap without compromising its 2035 emissions targets. Industry observers are watching whether the administration will lean more heavily into nuclear energy to provide the baseload power required by the semiconductor clusters. While the 12th Basic Plan sets the stage for increased capacity, the specific mix of energy sources and the timeline for new infrastructure remain the primary points of contention for policymakers.