351:
711:
513:. Both of those former utilities had traded publicly on the New York Stock Exchange, under ticker symbol CIP and UEP, respectively. At the time of the merger, Union Electric had assets of nearly US$ 600 million, but still carried nearly US$ 1.8 billion in long-term debt, although down from US$ 2.5 billion which it had accumulated by the 1980s. CIPSCO had assets of about US$ 210 million, but still carried nearly half of US$ 1 billion in long-term debt, which it had also accumulated by the 1980s.
751:, 229 F.Supp.3d 906 (2017) 48295 (D.C., E.D. Missouri, Eastern Division. 01/23/17). EPA alleged Ameren violated the Clean Air Act, the Missouri State Implementation Plan, and Ameren's Rush Island Plant Title V Permit when it undertook major modifications at the Rush Island Plant in 2007 through 2010 without obtaining the required permits under the Prevention of Significant Deterioration (PSD) provisions of the New Source Review (NSR) program.
591:
360 million in assets, it carried long-term debt of over US$ 2 billion. In 1991, Illinois Power reorganized as a holding company, Illinova
Corporation, which traded on the NYSE with ticker symbol ILN. Illinova had grown to an S&P Midcap 400 stock by 1996, with over US$ 415 million in assets, and had brought the IP utility's debt down to US$ 1.8 billion by then. In a merger completed February 1, 2000, Illinova became a wholly owned subsidiary of Dynegy Inc. (
731:
with no one onsite during pumping operations. Rebuilding the upper reservoir of the AmerenUE Taum Sauk pumped-storage hydroelectric plant cost $ 450 million. The upper reservoir was constructed with roller compacted concrete (RCC); and online in 2010, this 54.5-acre (221,000 m) reservoir is the largest RCC dam in North
America. The 450-megawatt Taum Sauk pumped storage hydroelectric plant began generating electricity again on April 21, 2010.
571:. CILCORP had traded on the NYSE with ticker symbol CER prior to its acquisition by AES, and by the mid-1990s had become a member of the S&P Small Cap 600 index. CILCO had been another pioneer utility in the region, which had paid a dividend since 1921. By 1996, it had grown to over US$ 150 million in assets, and carried US$ 330 million in long-term debt. Following the 2003 Ameren acquisition, that utility began doing business as
759:, with scrubbers. Ameren instead decided to close the plant in 2024, 15 years ahead of schedule. Sippel also ordered Ameren to install sulfur dioxide scrubbers on its Labadie plant, also in Missouri, but a federal appeals court overturned that condition even though “the government never provided notice of or alleged” that the plant committed a Clean Air Act violation.
27:
310:
286:
262:
238:
214:
618:'s Pioneer Prairie Wind Farm in Iowa, which is enough to power 26,000 households. The power AmerenUE is purchasing will tie into the Midwest Independent System Operator (MISO) transmission grid, of which the company is a member, fulfilling AmerenUE's commitment to add 100 megawatts of renewable capacity to serve its Missouri customers by 2010.
622:
service territories of the three former
Illinois operating companies—Zone I (the former AmerenCIPS), Zone II (the former AmerenCILCO) and Zone III (the former AmerenIP). On the same date, AmerenUE changed its name to Ameren Missouri Company. The former Illinois portion of the AmerenUE territory was transferred to Ameren Illinois Zone I.
754:
In
January 2017 the District Court found that Ameren "...violated the Clean Air Act without obtaining the necessary permits, installing best-available pollution technology, and otherwise meeting applicable requirements." Judge Rodney Sippel entered a finding of liability in January 2017 and ordered a
796:
chemicals. In June 2014 Ameren was removing contaminated soil from the area, and expected to finish by
September 2014. As of 2019 the city is considering purchasing the lot to create a public park. Ameren has been criticized by the North Village Board of Directors for owning "a whole city block that
775:
but state utility regulators turned down oversight of the project. As a result, Ameren canceled the program because it would not recover its investments. However, in early 2018 Ameren tried again, this time launching a program called "Charge Ahead" which incentivizes the installation of around 1,200
621:
On
October 1, 2010 Ameren's three Illinois operating companies merged to become Ameren Illinois Company. The merger resulted in a single operating company providing power to most of downstate Illinois. However, the Ameren Illinois service territory is split into three rate zones corresponding to the
840:
to pass regulations on harmful emissions contributing to regional haze affecting neighboring communities. Labadie is also the second-largest producer of greenhouse gases among the nation’s coal plants, according to EPA data. A study published in the journal
Science used Medicare records to estimate
730:
fined Ameren $ 15 million. The State of
Missouri has sued Ameren for actual and punitive damages, alleging Ameren recklessly operated the plant and put financial considerations from sale of power to other companies over safety, maintenance and engineering. The plant was operated by remote control
590:
Inc. That utility had traded publicly on the NYSE under the ticker symbol IPC through the 1980s, and paid dividends since 1947. As of the late 1980s, the company generated electricity and natural gas, almost entirely from coal plants, with less than 1% fueled from oil and gas. By then, with about $
603:
also took a 28% stake. Dynegy in turn had been created in June 1998, from the merger of
Chevron's natural gas and natural gas liquids businesses with Dynegy's predecessor, NGC Corp. (former ticker NGL). NGC had been an integrated natural gas services company around since 1994. Following Ameren's
841:
the number of deaths tied to air pollution from coal plants, estimating that from 1999 to 2020, about 4,000 deaths were linked to “fine particulate matter” from
Labadie, far more than any other coal plant across seven Midwestern states.
1399:
844:
Labadie received notice of Clean Air Act violations from the EPA in at least 2010 and 2011, being cited for “major modifications that caused a significant net emissions increase” without first obtaining proper permits.
527:, now known as Ameren Missouri. Today, with nine power plants Ameren Missouri serves 1.2 million power customers and 110,000 gas customers, primarily in Missouri, where more than half of its customers reside in the
744:
In 2011 the United States Environmental Protection Agency (EPA) filed suit (Case No. 4:11 CV 77 RWS) against Ameren Missouri concerning excess sulfur (SO2) emissions from the Rush Island Plant in Festus, Missouri
578:
At the end of 2003, Ameren's chairman and chief executive, Charles Mueller, retired and was succeeded in both positions by Gary Rainwater, the company's president and chief operating officer the past two years.
389:. The company is based in St. Louis, with 2.4 million electric, and 900,000 natural gas customers across 64,000 square miles in central and eastern Missouri and the southern four-fifths of Illinois by area.
516:
The merger was completed on December 31, 1997, when the two public companies became one, as Ameren Corporation, which then began to trade publicly on the New York Stock Exchange with the ticker symbol AEE.
1651:
1626:
1576:
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In 2002, Ameren Corporation announced a voluntary retirement program, which was offered to approximately 1,000 of Ameren's 7,400 current employees, expecting to realize significant long-term savings.
1437:
1400:
https://www.stltoday.com/news/local/business/ameren-coal-plant-is-top-polluter-labadie-emits-more-so2-than-any-in-us/article_85c77c20-e211-11ee-b0ec-73282e33d4eb.html#tracking-source=home-top-story
457:, 150 miles (240 km) north of St. Louis. Union Electric later bought the dam, providing 134 megawatts of hydroelectricity carried over a longer distance than had ever been achieved before.
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805:
Ameren Missouri sponsors the Adopt-the-Shoreline program, which enables people to “adopt” portions of the shoreline for litter control. They also control other shoreline activities in the
626:
1383:"Rebuild of AmerenUE Taum Sauk Plant Reservoir To Serve As Engine For Missouri and Regional Economic Growth, Recent Study Shows. Rebuild Expected to Add 635 jobs, $ 48 million in Income"
1736:
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611:
In December 2004, Ameren announced that Patrick T. Stokes, the president and chief executive officer of Anheuser-Busch Cos., Inc., was elected to the Ameren board of directors.
1003:
813:. The company maintains the Lake and Shoreline Protection Hotline that anyone who wishes can use to report neglected docks or other concerns they may have about the lake.
1281:
471:, became a major pooled energy power distributor with its future Ameren mate, Union Electric Company. The arrangement formed the Midwest Power Pool system. The CIPS
1601:
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1382:
1716:
1369:
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1523:
1105:
482:
In 1963 Union Electric completed construction of one of the largest pumped storage plants at that time, the then-350-megawatt Taum Sauk Plant, in
370:
1464:
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705:
1004:
https://www.lakeexpo.com/news/lake_news/what-is-shoreline-management-at-lake-of-the-ozarks/article_08ecbb10-fafe-11e4-bc08-175bc99f2987.html
636:’s 10 best energy companies to work for in America list. In the report, seventy four percent of employees said their job has high meaning.
784:
In nineteenth and twentieth centuries a local utility company operated a coal gasification plant at the corner of Ash and Orr streets in
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490:
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such as the regulation of boat docks, seawalls and other structures within the Osage Project boundary on the lake and downstream from
230:
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The former CIPSCO Inc. utility, Central Illinois Public Service Company, became Ameren's other operating company, doing business as
1721:
829:
report. Even if Labadie’s SO2 emissions were cut in half, it would still emit more than all but two coal plants in the country.
723:
434:
Prior to the formation of Ameren, the first major development in the history of its constituent parts occurred in 1929, when the
719:
714:
A large section of the Taum Sauk upper reservoir failed, draining over a billion gallons of water in less than half an hour.
890:
531:
metropolitan area. It also served Iowa as well through the mid-1990s, and served adjoining parts of Illinois until 2010.
652:
As of 2021, Ameren Illinois and Ameren Missouri distribute electricity and natural gas to most of central and southern
179:
166:
154:
142:
125:
644:
Ameren owns and operates transmission lines at the following voltages: 345kV, 230kV, 161kV, 138kV, 69kV and 34.5kV.
825:, does not have sulfur dioxide scrubbers, making it the country's highest emitter of the pollutant, according to a
756:
1386:
822:
776:
charging stations. In addition, the program creates incentives for the adoption of commercial electric vehicles.
669:
494:
483:
382:
836:
report included Ameren's Labadie Energy Center among the 17 deadliest coal plants in the US, with calls to the
693:
350:
1696:
826:
592:
509:-listed Union Electric Company, approved the merger of the two companies, which were to then be combined as
129:
54:
710:
366:
1338:
1317:
722:, which failed on December 14, 2005, causing extensive damage to the east fork of the Black River and to
421:. Ameren Missouri is responsible for managing water levels on the lake according to federal regulations.
1188:
374:
1531:
438:
was completed on the Osage River and generated almost 175 megawatts of hydroelectricity for Missouri's
1472:
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614:
In 2009, AmerenUE signed an agreement to purchase 102 megawatts (MW) of wind power from phase II of
475:
Power Station became a key contributor to the pool, which also included the later Ameren subsidiary
1722:
Missouri Attorney General Press Release with link to Petition for lawsuit against Ameren for breach
1500:
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615:
600:
472:
464:, and acquired other utilities to become the third largest distributor of natural gas in Missouri.
454:
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105:
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608:. The IP acquisition made Ameren the major investor-owned power company in downstate Illinois.
505:
In 1995 shareholders of both CIPSCO Inc. and of its neighboring utility of twice its size, the
979:
788:, that was subsequently demolished. The company was purchased by the Ameren Corporation. The
772:
768:
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633:
560:
302:
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868:
861:
625:
In 2015, Ameren became the first major energy company to open an Innovation Center at the
568:
461:
378:
1234:
1602:"Sierra Club calls on EPA to enforce coal plant rules, highlighting Missouri facilities"
1257:"A FIRST! AmerenUE Purchases 102 Megawatts of Wind Power - Enough for 26,000 Households"
771:. In 2016, the company attempted to launch a pilot program to install electric vehicle
685:
386:
37:
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45:
1413:"Ameren seeks to add hundreds of electric vehicle charging stations across Missouri"
582:
In 2004, Ameren acquired the third partner from the 1952 Midwest Power Pool system,
793:
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435:
414:
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1438:"Ameren continues Orr Street cleanup; harsh winter pushes back completion date"
506:
450:
449:
In 1931, Union Electric Light and Power sought additional generating sources (
254:
63:
1002:
What Is Shoreline Management At Lake Of The Ozarks? by Jeff Green, LakeExpo;
689:
661:
528:
196:
77:
1652:"Ameren coal plant is top polluter. Labadie emits more SO2 than any in US"
1627:"Ameren coal plant is top polluter. Labadie emits more SO2 than any in US"
1577:"Ameren coal plant is top polluter. Labadie emits more SO2 than any in US"
1231:"President and CEO of Anheuser-Busch Elected to Ameren Board of Directors"
755:
remedy that called for the company to equip its Rush Island coal plant in
673:
657:
653:
361:
is an American power company created December 31, 1997, by the merger of
175:
162:
150:
138:
121:
26:
604:
acquisition of Illinois Power, that subsidiary began doing business as
1701:
596:
58:
684:
As of 2017 Ameren shares are mainly held by institutional investors (
587:
1717:
FERC Taum Sauk Page - Reports, Charges and Settlement available here
1370:
FERC Taum Sauk Page - Reports, Charges and Settlement available here
792:
process contaminated the soil and some groundwater in the area with
709:
349:
278:
1496:"Arts District envisions brighter future for Orr Street property"
489:
In 1984 Union Electric added nuclear energy to the mix, when the
727:
520:
The name Ameren comes from the combination of American electric
1522:
North Village Arts District Board of Directors (May 30, 2019).
460:
By the 1950s Union Electric owned gas operations in and around
313:
289:
265:
241:
217:
837:
523:
Following the merger, Union Electric began doing business as
1159:"Ameren, Form 8-K, Current Report, Filing Date Mar 24, 2004"
1123:"Ameren, Form 8-K, Current Report, Filing Date Jan 31, 2003"
1084:"Ameren, Form 10-K, Annual Report, Filing Date Mar 30, 2000"
1059:"Ameren, Form 8-K, Current Report, Filing Date Mar 15, 2010"
453:
being one need) and the company began buying power from the
1209:"Ameren, Form 8-K, Current Report, Filing Date Feb 3, 2004"
1106:"Ameren Corporation Announces Voluntary Retirement Program"
952:"Ameren, Form 8-K, Current Report, Filing Date Nov 9, 2012"
927:"Ameren, Form 8-K, Current Report, Filing Date Jan 2, 1998"
1554:"AmerenUE sets up new website for Lake of the Ozarks info"
821:
Unlike most coal energy plants, the Labadie coal plant in
1680:
627:
Research Park, University of Illinois at Urbana-Champaign
1145:"Mueller to retire from Ameren; Rainwater to take reins"
668:
and surrounding suburbs. It excludes almost all of the
1117:
1115:
1294:"The 10 best energy companies to work for in America"
1053:
1051:
921:
919:
917:
915:
339:
767:Ameren has a history of supporting the adoption of
334:
324:
300:
276:
252:
228:
208:
187:
112:
101:
83:
73:
43:
33:
1762:Hydroelectric power companies of the United States
1041:
1039:
1037:
1035:
1026:A century of excellence: Ameren history, 1902-2002
797:is in disrepair and for an aversion to commerce."
1019:
1017:
1015:
1013:
1011:
563:-based CILCORP, Inc. and its leading subsidiary,
392:Ameren is the holding company for the following:
1179:Standard & Poor's Stock Guide, December 1987
467:In 1952, Ameren's second major constituent, the
1737:Companies listed on the New York Stock Exchange
446:with 1,400 miles (2,300 km) of shoreline.
1198:, Chevron Press Release Archives, Feb. 2, 2000
493:began providing 1,143 megawatts of power from
1752:Electric power companies of the United States
1189:CHEVRON CORP. APPLAUDS DYNEGY-ILLINOVA MERGER
1045:Standard & Poor's Stock Guide, April 1996
885:
883:
881:
879:
877:
373:(CIPSCO Inc. holding, formerly NYSE: CIP) of
8:
1747:Nuclear power companies of the United States
1465:"An Empty Lot in the District Shows Promise"
660:. This service area includes the cities of
541:In 2000, Ameren formed the holding company,
19:
354:Ameren technician replacing a street light
18:
545:. It contained two further subsidiaries,
369:(formerly NYSE: UEP) and the neighboring
1650:Gray, Bryce; Renaud, Josh (2024-04-21).
1625:Gray, Bryce; Renaud, Josh (2024-04-21).
1575:Gray, Bryce; Renaud, Josh (2024-04-21).
891:"Ameren Corporation 2020 Annual Report"
854:
469:Central Illinois Public Service Company
371:Central Illinois Public Service Company
1687:Business data for Ameren Corporation:
706:Taum Sauk Hydroelectric Power Station
7:
1742:Energy companies established in 1997
1494:Przybyla, Sarah (November 3, 2016).
1463:Bayless, Kacen J. (March 28, 2019).
1359:Ameren Corporation Ownership Summary
656:and to much of northern and eastern
409:The Ameren Missouri subsidiary owns
1339:"Ameren Missouri Service Territory"
1318:"Ameren Illinois Service Territory"
491:Callaway Nuclear Generating Station
632:In 2016, Ameren was named 10th on
318:Fiscal Year Ended 31 December 2020
294:Fiscal Year Ended 31 December 2020
270:Fiscal Year Ended 31 December 2020
246:Fiscal Year Ended 31 December 2020
222:Fiscal Year Ended 31 December 2020
14:
748:United States v. Ameren Missouri
672:, where about three quarters of
309:
308:
285:
284:
261:
260:
237:
236:
213:
212:
25:
1767:1997 establishments in Missouri
1436:Denney, Andrew (May 21, 2014).
1385:(Press release). Archived from
1259:(Press release). Archived from
980:"Our Businesses | Ameren Corp"
720:Taum Sauk pumped storage plant
700:Taum Sauk pumped storage plant
565:Central Illinois Light Company
330:9,116 (December 31, 2021)
1:
1560:. May 2, 2008. Archived from
1381:AmerenUE (February 1, 2008).
780:Former manufactured gas plant
724:Johnson's Shut-Ins State Park
1757:Companies based in St. Louis
1600:Kite, Allison (2023-05-25).
871:, Accessdate: April 24, 2011
1024:Ameren Corporation (2002).
442:. The dam also created the
402:Ameren Transmission Company
89:; 27 years ago
16:American utilities provider
1783:
1255:AmerenUE (June 18, 2009).
757:Jefferson County, Missouri
703:
823:Franklin County, Missouri
718:Ameren Missouri owns the
670:Chicago metropolitan area
559:In 2003, Ameren acquired
495:Callaway County, Missouri
484:Reynolds County, Missouri
24:
1524:"Hopeful for the Future"
694:State Street Corporation
1656:St. Louis Post-Dispatch
1631:St. Louis Post-Dispatch
1581:St. Louis Post-Dispatch
1528:Columbia Business Times
1469:Columbia Business Times
827:St. Louis Post-Dispatch
676:'s population resides.
551:AmerenEnergy Generating
130:Chief Executive Officer
1442:Columbia Daily Tribune
715:
584:Illinois Power Company
547:AmerenEnergy Marketing
543:AmerenEnergy Resources
477:Illinois Power Company
440:Union Electric Company
367:Union Electric Company
355:
147:Leonard "Lenny" Singh
817:Labadie Energy Center
713:
375:Springfield, Illinois
353:
174:(Ameren Transmission
118:Martin J. Lyons, Jr.
1606:Missouri Independent
1444:. Columbia, Missouri
1389:on February 2, 2013.
735:Environmental issues
1501:Columbia Missourian
640:Ameren Transmission
616:Horizon Wind Energy
601:Chevron Corporation
473:Meredosia, Illinois
363:St. Louis, Missouri
326:Number of employees
106:St. Louis, Missouri
21:
1194:2007-09-29 at the
900:. 31 December 2020
867:2011-08-27 at the
862:Facts about Ameren
807:Lake of the Ozarks
801:Lake of the Ozarks
786:Columbia, Missouri
716:
511:Ameren Corporation
444:Lake of the Ozarks
419:Lake of the Ozarks
417:, which forms the
359:Ameren Corporation
356:
20:Ameren Corporation
1564:on July 15, 2009.
1282:Ameren fact sheet
1211:. secdatabase.com
1161:. secdatabase.com
1125:. secdatabase.com
1086:. secdatabase.com
1064:. secdatabase.com
773:charging stations
769:electric vehicles
763:Electric vehicles
726:. Consequently,
696:, among others).
348:
347:
200:
183:
172:Shawn E. Schukar
170:
161:(Ameren Services
159:Michael L. Moehn
158:
149:(Ameren Illinois
146:
137:(Ameren Missouri
133:
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1681:Official website
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1475:on July 22, 2019
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666:East Saint Louis
634:Business Insider
387:energy companies
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292:32.030 Billion (
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396:Ameren Missouri
383:power companies
379:holding company
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102:Headquarters
34:Company type
1697:SEC filings
834:Sierra Club
832:In 2023, a
811:Bagnell Dam
573:AmerenCILCO
507:S&P 500
451:interurbans
436:Bagnell Dam
415:Osage River
411:Bagnell Dam
203:Natural Gas
192:Electricity
64:S&P 500
1731:Categories
1661:2024-04-21
1636:2024-04-21
1611:2023-05-25
1586:2024-04-21
1422:2018-11-21
1345:2021-09-20
1324:2021-09-20
1303:2017-04-07
1241:2013-09-15
989:2020-06-10
984:Ameren.com
849:References
536:AmerenCIPS
255:Net income
114:Key people
1711:Taum Sauk
1028:. Ameren.
904:28 August
690:BlackRock
680:Ownership
662:St. Louis
529:St. Louis
197:megawatts
180:President
167:President
155:President
143:President
126:President
78:Utilities
66:component
46:Traded as
1538:July 22,
1507:July 22,
1479:July 22,
1448:June 14,
1341:. Ameren
1320:. Ameren
1267:June 14,
1192:Archived
865:Archived
674:Illinois
658:Missouri
654:Illinois
606:AmerenIP
525:AmerenUE
195:(16,900
188:Products
176:Chairman
163:Chairman
151:Chairman
139:Chairman
122:Chairman
74:Industry
595::
586:, from
567:, from
430:Origins
425:History
413:on the
335:Website
209:Revenue
92: (
84:Founded
57::
1702:Yahoo!
1692:Google
1215:Jan 5,
1165:Jan 5,
1129:Jan 5,
1090:Jan 5,
1068:Jan 5,
964:Jan 5,
936:Jan 5,
898:Ameren
588:Dynegy
561:Peoria
549:, and
340:ameren
178:&
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108:, U.S.
1062:(PDF)
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1540:2019
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728:FERC
664:and
593:NYSE
385:and
342:.com
314:US$
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