Global electricity demand surged by 4.3% in 2024 and is projected to maintain nearly 4% annual growth through 2027, according to the latest International Energy Agency (IEA) report. While data centers and AI advancements have garnered attention for their increasing power consumption, they represent only a fraction of the broader picture. The primary drivers behind this demand surge are emerging economies, particularly China, India, and Southeast Asia, where industrial expansion, electric vehicle (EV) adoption, and rising air-conditioning use contribute significantly.
Emerging Markets: The Key Players
Developing nations will be responsible for about 85% of the expected global electricity demand growth over the next three years. China, the dominant force in this shift, accounted for more than half of the demand increase in 2024 alone. A single sector—manufacturing of solar panels, batteries, and EVs—used approximately 300 terawatt-hours of electricity in China last year, equivalent to Italy’s annual consumption. Heavy industry, widespread AC adoption, and a booming EV market continue to push energy needs upward.
India and Southeast Asia are also witnessing rapid growth due to economic development and rising living standards. As urbanization progresses, the need for cooling systems and industrial power intensifies. Meanwhile, Africa’s energy landscape remains a challenge, with 600 million people still lacking reliable access to electricity.
The Role of Data Centers
Despite widespread concern over their power consumption, data centers are projected to account for less than 10% of global electricity demand growth between now and 2030. This is small compared to sectors like manufacturing and transportation, yet their impact is undeniable in advanced economies. The U.S. and parts of Europe, where electricity demand had been stable or declining for 15 years due to efficiency improvements, are now seeing an upward trend driven by data centers.
In the U.S., the ten states with the highest concentration of new data centers experienced a 10% rise in electricity demand between 2019 and 2023, while demand in the remaining 40 states dropped by 3%. Future projections for AI-powered data centers remain uncertain, with even slight changes in efficiency or adoption rates potentially altering the energy landscape dramatically. Notably, China’s data center energy demand is expected to double by 2027, further contributing to the country’s already significant electricity consumption.
Climate Considerations and Renewable Expansion
The rise in global electricity demand has mixed implications for climate change. Increased electrification can reduce emissions when clean energy replaces fossil fuels—heat pumps, for instance, offer a lower-carbon alternative to gas heating. However, in many regions, grids still rely heavily on coal and natural gas, complicating the decarbonization effort.
Encouragingly, renewable and low-emissions energy sources are scaling up to match demand. Solar power alone is expected to supply half of the projected demand increase through 2027, while nuclear power is gaining traction with new developments in France, Japan, China, and India. Still, renewables must grow not only to meet new demand but also to phase out existing fossil fuel generation.
Ultimately, while global electricity demand growth is a sign of economic progress, managing this expansion effectively will be crucial in the fight against climate change. The challenge lies in ensuring that clean energy keeps pace, preventing a prolonged reliance on carbon-intensive power sources.
https://www.technologyreview.com/2025/02/20/1112119/electricity-demand-2025