According to *The New York Times*, facing multi-year delays for grid connections and new turbines, some AI data centers are turning to retrofitted retired jet engines to generate their own power. xAI has already installed eight such engines in Mississippi to power its data center, and OpenAI also plans to use gas turbines in 2025. While grid connection can take about seven years, jet engines can be up and running within 24 months. However, these engines are less efficient and significantly more polluting.