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The expansion of data centers to support the AI boom has led to the reactivation of gas, coal, and oil power plants from the 1960s in the USA. According to a report, 60% of the plants previously slated for decommissioning are now expected to remain operational.

These primarily include 'peaker' plants, which generate electricity for short periods during peak demand. These facilities are often more expensive to operate and more polluting than conventional energy sources. This trend may result in higher electricity prices for consumers, increased local pollution, and challenges for new clean energy sources to connect to the grid.