sub·​sta·​tion | \ ˈsəb-ˌstā-shən \

Definition of substation

: a subordinate or subsidiary station: such as
a : a branch post office
b : a subsidiary station in which electric current is transformed
c : a police station serving a particular area

Examples of substation in a Sentence

Recent Examples on the Web

Local providers including Duke Energy and Southern are deploying aerial gear fitted with infrared and high-zoom sensors that can inspect substations, locate malfunctioning solar panels and even help to restring power lines. Naureen S. Malik, The Seattle Times, "Drones ready to swoop in for Florence power recovery," 17 Sep. 2018 Lifeline Theatre and Rogers Park Lifeline Theatre has been in its current home — a converted Commonwealth Edison substation on Glenwood Avenue, near the Morse Red Line stop — since 1985. Kerry Reid,, "Living near the limelight: Some Chicagoans find local theaters add more value than expected," 9 Nov. 2017 It was sparked when a piece of equipment about 15 to 20 feet high failed inside the substation, which operates at 138,000 volts. Erin Ailworth, WSJ, "Why Was the Light That Flooded New York City’s Sky So Blue?," 28 Dec. 2018 The electricity generated on the site is fed into a substation operated by San Diego Gas & Electric and is part of a 15-year power purchase agreement the operators signed with Southern California Edison. Rob Nikolewski,, "Tule Wind Project back up after being offline for more than 5 weeks," 1 June 2018 The suspect, who was at the hospital when police arrived, was taken into custody at a Pontiac substation to speak with detectives. Deasia Paige, Detroit Free Press, "Police: Pontiac teen dies in apparent accidental shooting," 9 July 2018 Dozens have been launched in Nineveh alone, including water treatment plants, wells, schools, health-care centers, a major hospital and power substations. Carol Morello, Washington Post, "Under pressure from Pence, U.S. aid is directed to Christian, Yazidi communities in Iraq," 16 June 2018 This year, the district partnered with the National City Police Department and Westfield Plaza Bonita to offer meals at the police community storefront — a substation of sorts — located on the northeastern end of the mall. David Hernandez,, "School districts plan to offer free summer meals across South Bay," 6 June 2018 Hartman also trained Davis on projects relevant to the job and staffing issues related to the 16 patrol deputies, five detectives, five sergeants and office staff, senior volunteers and crime prevention staff at the substation. Julie Gallant, Ramona Sentinel, "Lt. Chris Davis takes charge of sheriff's Ramona substation," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'substation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of substation

1833, in the meaning defined above

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Last Updated

16 Feb 2019

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Time Traveler for substation

The first known use of substation was in 1833

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English Language Learners Definition of substation

: a place where the strength of electricity is changed as the electricity passes through on its way from the power plant to homes and businesses
: a police station that serves a particular area

More from Merriam-Webster on substation

Rhyming Dictionary: Words that rhyme with substation Encyclopedia article about substation

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What made you want to look up substation? Please tell us where you read or heard it (including the quote, if possible).


to deny responsibility for

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