& light company ipl headquarters in 2009 founded october 1926 headquarters indianapolis indiana united states area served indianapolis metropolitan area products electricity number of employees 1 500 parent aes corporation website iplpower.com indianapolis power & light company also known as ipl or ipalco is an american utility company providing electric service to the city of indianapolis . it is a subsidiary and largest utility of aes corporation which acquired it in 2000 . ipl provides electric service to more than 470 000 customers in a 528 square mile 1 370 km2 service territory . contents 1 history 2 generating plants 3 references 4 external links history edit ipl was formed in october 1926 by the merger of the indianapolis light and heat company and the merchant s heat and light company . those two companies had started providing electrical service in the 1880s . at the time of the merger the company had 105 000 customers . 1 in 1937 ipl began a rural electrification program running power lines to many areas outside marion county . 2 the company moved into its present day headquarters building on monument circle in downtown indianapolis in 1935 ; the building now known as the electric building had been constructed in 1924 for the continental bank . 1 the building was remodeled in 1968 to a design by lennox matthews simmons & ford with the lighting design by norman f. schnitker . in the late 1980s the internal revenue service audited ipl and assessed a tax deficiency on deposits that ipl required of customers with poor credit histories . the ensuing court case commissioner v. indianapolis power & light co. resulted in a united states supreme court ruling in 1990 that such customer deposits to a public utility were not taxable income . generating plants edit the company owns and operates three coal fired generating plants a combustion turbine and a wind farm giving the company a total nameplate generating capacity of 3 513 mw of power . eagle valley generating station is located in martinsville indiana and has a production capacity of 341 mw of power . harding street generating station formerly known as the elmer w. stout generating station is located on the southwest side of indianapolis and has a production capacity of 1 196 mw of power . 3 petersburg generating station is located near petersburg indiana and has a production capacity of 1 760 mw of power . georgetown combustion turbine is located on the northwest side of indianapolis and has a production capacity of 158 mw of power . 4 hoosier wind farm is a joint venture between ipl and enxco and has a namplate capacity of 160 mw of power . 5 references edit a b ipl s rich heritage of powering indianapolis . indianapolis power & light company . retrieved january 16 2015 . about ipl . ipl . retrieved october 17 2008 . existing electric generating units in the united states 2008 excel . energy information administration u.s. department of energy . 2008 . retrieved november 29 2009 . indianapolis power & light fact sheet . ipl . retrieved october 22 2008 . construction to begin on another indiana wind project . inside indiana business . april 17 2009 . retrieved march 14 2010 . external links edit official website v t e power stations in indiana operating coal fired generating stations a.b. brown bailly cayuga clifty creek crawfordsville mun . f.b. culley eagle valley edwardsport r. gallagher gibson harding st. formerly e.w. stout jasper mun . logansport merom michigan city d.h. mitchell noblesville perry k. peru mun . petersburg h.t. pritchard f.e. ratts rockport r.m. schahfer tanner s creek wabash river warrick whitewater valley defunct coal fired generating stations state line oil fired peaking stations connersville miami wabash gas fired peaking stations anderson broadway georgetown henry county lawrence county lawrenceburg montpelier noblesville northeast portside richmond vermillion wheatland whiting clean energy worthington hydroelectric dams markland dam norway dam oakdale dam twin branch dam wind farms benton county wind farm fowler ridge wind farm hoosier wind farm meadow lake wind farm attempted biomass to energy plants milltown biomass attempted nuclear plants marble hill nuclear power plant bailly nuclear power plant utility companies duke energy indiana greenfield mills hoosier energy indiana michigan power indianapolis power & light northern indiana public service company vectren this indianapolis indiana related article is a stub . you can help wikipedia by expanding it . v t e this article about a united states company or corporation involved in the energy industry is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title indianapolis power % 26 light & oldid 743483138 categories companies based in indianapolispower companies of the united statesindianapolis stubsunited states energy company stubshidden categories official website different in wikidata and wikipediaall stub articles navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 9 october 2016 at 21 27 . text is available under the creative commons attribution sharealike license ; 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