Surging AI datacenter electricity demand reignites global debate over how grid infrastructure costs should be apportioned among stakeholders, with some regulators proposing cost-sharing models.
As artificial intelligence power consumption surges, countries are grappling with a fundamental question: who should bear the costs of building power grids to supply massive data centers? Traditionally, grid construction costs have been distributed across all consumers' electricity bills. But a new debate has emerged over whether households should subsidize this infrastructure when data centers often monopolize the newly built capacity. This discussion is expected to intensify in South Korea, where Korea Electric Power Corporation (KEPCO) currently shoulders all grid construction expenses.
The issue came into sharp focus on September 16 when the U.S. House of Representatives passed the *Electric Bill Payer Protection Act* with an overwhelming 417-3 vote. The bill prevents costs from new power plants and transmission grids built for AI data centers from being passed to household electricity bills, instead mandating that large data centers cover both generation and transmission costs. President Donald Trump is now discussing the bill's path forward with Senate leadership. Australia's New South Wales state government is pursuing similar reforms to ensure data center transmission costs are not shifted to general consumers.
Historically, power grids operated like roads—as shared public infrastructure with costs distributed across all users' bills, including households, businesses, and factories. But data centers and semiconductor complexes now consume power equivalent to entire cities, requiring new transmission lines and substations that each cost hundreds of billions of won to build.
Research suggests residents are already bearing hidden costs. Researchers at Spain's Universitat Autònoma de Barcelona found that Irish households paid an average cumulative total of 360 euros (approximately 580,000 Korean won) more between 2015 and 2023 due to data center power demand. After 2025, this burden could increase to as much as 644 euros (approximately 1.04 million Korean won). In the United States, an analysis found that 4.4 billion dollars of grid investment costs in seven states in 2024 were ultimately allocated to general consumers.
In South Korea, KEPCO initially funds all grid construction for AI data centers and semiconductor clusters. KEPCO's debt reached 210.7 trillion Korean won in the first half of this year. Should grid investment costs drive rate increases, ordinary consumers could ultimately bear the burden.
According to RAP, a U.S.-based energy research organization: "Determining who bears how much of grid infrastructure costs requires governments, utilities, and communities to collaboratively establish principles."