- Global data center electricity consumption is projected to double from 415 TWh in 2024 to 945 TWh by 2030, according to the International Energy Agency.
- That 945 TWh figure exceeds Japan’s total electricity consumption and would rank higher than more than 160 individual countries.
- The United States and China will account for roughly 80% of global data center electricity growth, with AI-driven accelerated servers growing at 30% annually.
What Happened
The International Energy Agency published its comprehensive Energy and AI report, providing the most detailed projections to date on how artificial intelligence will reshape global electricity demand. The central finding: data centers worldwide will consume approximately 945 terawatt-hours of electricity by 2030, more than double the 415 TWh consumed in 2024.
To put that number in perspective, 945 TWh is slightly more than Japan’s total national electricity consumption today. It would also exceed the electricity usage of more than 160 individual countries, making the global data center fleet one of the largest electricity consumers on Earth.
Why It Matters
Data center electricity demand has been growing at 12% annually over the past five years. The IEA projects that rate will accelerate to approximately 15% per year through 2030, more than four times faster than electricity demand growth in other sectors. AI is the primary driver of this acceleration.
In advanced economies, data centers will account for more than 20% of all electricity demand growth through 2030. That share is large enough to influence national energy planning, grid investment decisions, and carbon emissions trajectories. For emerging and developing economies, data centers represent about 5% of demand growth, a smaller share but one that could strain grids with less available capacity.
Technical Details
The IEA breaks data center demand growth into two categories. AI-driven accelerated servers, the GPUs and specialized chips that power machine learning training and inference, are growing at 30% annually. Conventional servers, which handle traditional computing workloads, are growing at 9% annually. Accelerated servers now account for nearly half of the net increase in global data center electricity consumption.
Regional disparities are stark. The United States will see data center electricity consumption increase by 240 TWh, a 130% jump from 2024 levels. China will add 175 TWh, a 170% increase. Europe’s growth is more modest at 45 TWh, or 70%. Together, the U.S. and China account for roughly 80% of global growth.
On a per capita basis, the IEA estimates U.S. data center electricity consumption will reach 1,200 kWh per person by 2030, equivalent to about 10% of the average American household’s total electricity use. In Africa, the figure is less than 2 kWh per person.
Who’s Affected
Utility companies and grid operators in the United States face the most immediate pressure. A 130% increase in data center load requires new generation capacity, transmission infrastructure, and grid planning that typically takes years to deploy. Technology companies like Microsoft, Google, and Amazon, which operate the largest hyperscale data center fleets, are signing long-term power purchase agreements and investing directly in nuclear and renewable energy projects to secure supply.
Communities near planned data center developments are increasingly affected as well. Local opposition has delayed or blocked projects in Virginia, Ireland, and the Netherlands over concerns about grid strain, water usage for cooling, and noise. Japan faces an 80% increase in data center electricity demand, adding roughly 15 TWh to a grid already under strain from the country’s post-Fukushima energy transition.
What’s Next
The IEA models a range of scenarios. In a high-adoption “lift-off” case, data center demand could reach 1,700 TWh by 2035, consuming 4.4% of global electricity. A high-efficiency scenario, where chip improvements and cooling innovations outpace demand growth, lands at 970 TWh. In a “headwinds” case with slower AI adoption, demand plateaus at roughly 700 TWh.
The report notes that roughly half of projected data center demand growth will be met by renewable energy sources, with renewables generation projected to grow by over 450 TWh specifically to serve data center load by 2035. The other half will require fossil fuel generation or new nuclear capacity to fill the gap. The IEA stops short of prescribing specific policy interventions but frames the findings as a call for coordinated energy planning that accounts for AI-driven demand as a structural shift, not a temporary spike.
