# substation

/ˈsəbˌsteɪʃən/ (US) · /sʌbstˈeɪʃən/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/substation
Updated: 2026-05-19

## Definition

a building or area where electricity is changed from one voltage to another before it is sent to homes and businesses.

For teachers: a facility where electricity is transformed from high voltage to low voltage for distribution to consumers. Often used in the context of power grids and electrical engineering.

## Examples

- The power company built a new substation near the town.
- During the storm, a lightning strike damaged the substation, causing a temporary power outage across the entire neighborhood.
- The expansion of the city's infrastructure required the construction of several new high-voltage substations to manage the increased demand for residential and commercial electricity.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.