AI data centers strain the quality of the power grid

Disturbing harmonics AI data centers strain the quality of the power grid

2025-01-14 From Manuel Christa | Translated by AI 2 min Reading Time

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The rapid expansion of data centers for artificial intelligence (AI) in the USA is increasingly affecting the quality and stability of the power grid. Harmonics would deteriorate the power quality in surrounding households.

AI data centers affect the immediate power quality.(Image: Pixabay) — AI data centers affect the immediate power quality.
(Image: Pixabay)

An analysis by Bloomberg shows that within a 50-mile radius of certain AI data centers, harmonic disturbances occur. This happens due to nonlinear loads in the power grid and can disrupt the operation of electrical devices in surrounding households. Such poor harmonics could be the cause of overheating motors in refrigerators or air conditioners and ultimately pose a fire risk. The problem could amount to a total damage in billions, according to the Bloomberg report.

Data from Whisker Labs, which analyzed around 770,000 sensors in US households, would show that more than half of the households experiencing the strongest power distortions are located within 20 miles of large data centers. About 3.7 million Americans are affected by these disturbances.

AI data centers are emerging faster than the necessary power grid

Companies like Microsoft and Amazon are investing billions in expanding their data centers to meet the rising demand for AI services. Microsoft plans to invest around 80 billion US dollars in data centers by the end of the fiscal year, about half of which will be in the USA. Amazon Web Services (AWS) has allocated 11 billion dollars for expansion in Georgia.

This massive expansion significantly increases the pressure on the power infrastructure. Some data centers consume as much electricity as entire cities or states. They often emerge faster than the necessary grid expansion around them, warns the analysis. Investments in this would already be proceeding too slowly and are not keeping pace with the current demand boom, which is expected to intensify in the future.

The report warns that the AI power hunger is not just limiting the issue to whether there is enough electricity for everyone in certain areas. Instead, overall poorer power quality could also lead to flickering lights or local power outages.

Energy providers and policymakers face challenges

The increasing demand for energy for AI data centers is forcing energy providers and policymakers to find solutions to ensure grid stability. In some cases, decommissioned nuclear power plants are being reactivated to meet energy needs. For example, Microsoft plans to restart a reactor at the decommissioned US nuclear power plant Three Mile Island to power its data centers. (mc)

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Date: 08.12.2025

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