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AIデータセンターはあなたの電気料金を引き上げるのか——それとも他の誰かの電気料金を?

Will AI Data Centers Raise Your Power Bill—or Just Someone Else’s?

AIデータセンターの急増で電気料金は上がるのか?米国では2030年までに電力コストが最大25%以上増加する地域も。家庭への影響と対策の最前線を解説する。
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Will AI data centers push up electricity bills? The short answer is: they can, but not always. AI needs huge amounts of computing power, and that means huge amounts of electricity. The U.S. Department of Energy says data centers used about 4.4% of all U.S. electricity in 2023. Depending on how fast demand grows, that share could rise to about 6.7% to 12% by 2028. Globally, the International Energy Agency said in April 2025 that electricity demand from data centers is likely to more than double by 2030, reaching around 945 terawatt-hours, with AI as the biggest reason for the increase. (energy.gov)

This does not mean every home bill will suddenly jump because of AI. But in places where the grid is already tight, fast growth in data centers can make power more expensive. PJM, the grid operator for a large part of the eastern United States, said in January 2025 that electricity demand is growing at its fastest pace in years, mainly because of data centers, electrification, and manufacturing. It even warned that a capacity shortage could affect the system as early as the 2026/2027 delivery year. When supply grows slowly but demand rises quickly, prices usually go up. (insidelines.pjm.com)

Some researchers now think this pressure could reach ordinary consumers. Carnegie Mellon University reported that, without policy action, growth in data centers and crypto mining through 2030 could raise average U.S. electricity generation costs by 8%, with increases above 25% in central and northern Virginia. That does not prove all bills will rise by the same amount, but it shows the risk is real, especially in areas where many data centers are being built close together. (cmu.edu)

Still, higher bills are not unavoidable. Regulators are starting to make special rules so large data centers pay more of the costs they create. In Virginia, for example, the State Corporation Commission created a separate rate class for very large customers such as hyperscale data centers. The goal is to reduce “cost shifting,” so families and small businesses do not unfairly pay for new infrastructure built mainly for AI. So, AI data centers may push electricity prices higher, but smart policy can decide who pays the bill. (scc.virginia.gov)

by EigoBoxAI
作成:2026/03/24 09:01
レベル:中級 (語彙目安:2000〜2500語)

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