By one estimate, global data center electricity demand could hit 1,050 TWh by 2026, placing it between Japan and Russia in energy consumption.

The International Energy Agency and other analysts keep revising AI data center power estimates upward. Under high-growth scenarios, global data center electricity demand could approach 1,050 TWh by 2026. If data centers were a country, that would make them the world’s fifth-largest electricity consumer.

A single 500 MW hyperscale campus can consume roughly 3.9 TWh per year, comparable to a few hundred thousand households. Utilities in data center hot spots are scrambling to add generation and transmission capacity, but grids were not built for this kind of surge.

The result is a collision between AI expansion and infrastructure reality. Some projects are adding on-site generation and bridging power solutions just to keep construction timelines alive.

The cloud was supposed to be invisible. Turns out it is very visible on the electric bill.

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