Acela energy means: The specific frequency of controlled urgency, bipartisan earnestness, and intellectual self-assurance that emanates from people living deep inside the DC/NYC power circuit. Acela energy isn't about. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.