Editing Philadelphia (section)

====Electricity====
{{Further|PECO Energy Company}}
[[Exelon]] subsidiary [[PECO Energy Company]], founded as the Brush Electric Light Company of Philadelphia in 1881 and renamed Philadelphia Electric Company (PECO) in 1902, provides electricity to about 1.6&nbsp;million customers and more than 500,000 natural gas customers in the southeastern Pennsylvania area including the city of Philadelphia and most of its suburbs.<ref>{{cite web |url=https://www.peco.com/AboutUs/Pages/CompanyInformation.aspx |title=PECO: Company Information |publisher=PECO Energy Company |access-date=January 29, 2017 }}</ref> PECO is the largest electric and natural gas utility in the state with 472 power substations and nearly {{convert|23000|mi|km}} of electric transmission and distribution lines and {{convert|12000|mi|km}} of natural gas transmission, distribution, and service lines.<ref>[https://www.peco.com/SiteCollectionDocuments/PECO_Investing_in_our_Community_Booklet.pdf "PECO_Investing_in_our_Community_Booklet"] {{Webarchive |url=https://web.archive.org/web/20180130204845/https://www.peco.com/SiteCollectionDocuments/PECO_Investing_in_our_Community_Booklet.pdf |date=January 30, 2018 }}. page 2. ''peco.com''. PECO Energy Company. Retrieved January 30, 2018.</ref>