Given Beyond the Times' (BTT) mission statement: working responsibly with AI to offer an honest reportage of current events — especially those stories that offer pathways towards a sustainable and collaborative future between the global human community and the natural world, let's explore the cost vs benefits of AI, since in the four years that this technology has become mainstream, it has already noticeably impacted the environment in no small way.

An Overview

AI Energy and Water Consumption

by Alex Shuper
by Alex Shuper

The numbers on the consumption side are staggering and accelerating. According to the International Energy Agency, data centers consumed approximately 460 TWh (terawatt-hour) of electricity in 2024 — roughly 1.5% of all global electricity.[18] One watt-hour (Wh) means using one watt of power for one hour. A terawatt-hour means using a trillion watts in an hour.

By 2030, that figure is projected to grow to over 1,000 TWh.[18] For context, if data centers were a country, they would already rank as the fifth-largest energy consumer on Earth, slotting in between Japan and Russia.

At the individual query level, a single ChatGPT query consumes approximately 2.9 Wh of energy — the equivalent of running a lightbulb for about 20 minutes.[41] Google's AI Overviews add roughly 10 Wh per query, compared to 0.3 Wh for a non-AI Google search. Alphabet's own board chair acknowledged to Reuters that an AI-powered search exchange can cost 10 times more than a traditional search.