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Taum Sauk Hydroelectric Power Station

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licensed by the US Federal Power Commission (the predecessor of the Federal Energy Regulatory Commission) because Union Electric contended that the FPC did not have jurisdiction over the non-navigable headwaters where the power station was constructed. In FPC v. Union Elec. Co., 381 U.S. 90 (1965), the United States Supreme Court held that the FPC did have jurisdiction and that Taum Sauk did require a FPC license. Although designed and built without federal supervision, a license was retroactively granted.
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unusually high head (the highest in the US at the time, far surpassing all previous US pumped storage projects), a large storage capacity (it has been described as "the first of the large capacity pumped-storage stations to begin operation in the United States"), black start capability, and had the unique ability to be operated either remotely by remote human operators in off-site facilities located 90–120 miles away (at St. Louis or
807: 1163:...the Commission can only conclude that the loss of the Taum Sauk plant was due to imprudence on the part of UE (Ameren's AmerenUE Subsidiary). UE was well aware of the catastrophic results likely to occur if the UR (Upper Reservoir) was overtopped by over-pumping. UE knew, or should have known, that storing water against the parapet wall of a rockfill dam was 'unprecedented'. UE knew, or should have known, that operating with a 2462: 815: 3041: 1275: 1122:(FERC) fined Ameren US$ 15 million pursuant to a settlement for the breach at Taum Sauk—a US$ 10 million civil penalty combined with the requirement to pay US$ 5 million into interest-bearing escrow in order to fund a variety of "project enhancements at or near the Taum Sauk project". The US$ 15 million fine was the largest fine in FERC's history, 30 times larger than the previous record fine of US$ 500,000. 1263: 146: 1049: 976:
as the site, in part because it was the highest point in Missouri at 1,752 feet (534 m), but strong political opposition to development of the scenic mountain (which was later incorporated into a state park) ruled it out. The nearby Proffit Mountain ended up being an excellent alternative thanks
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A combination of design and construction flaws, continuing to operate the dam when the primary system for gauging the water level was known to be inaccurate (gauge pipes had become detached), moving the "failsafe" secondary gauging system above the actual height of the dam to avoid false positives,
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At 5:12 a.m. on December 14, 2005, the northwest side of the upper reservoir was overtopped when water continued to be pumped from the lower reservoir after the upper was full. This led to the catastrophic failure of a triangular section of the reservoir wall and the release of 1 billion
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dictate that more power is used to pump the water up the mountain than is generated when it comes down. However, the plant is still economical to operate because the upper reservoir is refilled at night, when the electrical generation system is running at low-cost baseline capacity. This ability to
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in June 2007 which "did not name any suspect" and the attorney general made a statement that there would be no criminal charges. According to press reports, the report states that Ameren failed to provide the identity of the person who raised the gauges meant to prevent overtopping and also states
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At its completion, the Taum Sauk plant was by far the largest pumped storage plant in North America in a number of measures, and was considered a major milestone in the development of pumped storage technology. Its pump-turbines were the largest ever produced at the time of construction, it had an
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The flood continued downstream 4.3 miles (6.9 km) on the East Fork of the Snake River to the dam on the river supplying the Lower Reservoir for plant. The dam of the lower reservoir, which by design is able to hold much of the capacity of the upper reservoir, withstood the onslaught of the
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Water was pumped into the rebuilt reservoir for the first time on February 27, 2010, and engineers monitored the response of the new structure as the water level was repeatedly raised and lowered. The final approval required from the FERC for "return to normal project operations" was received on
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Construction on Taum Sauk began in 1960. The construction team consisted of Fruin-Colnon Construction and the Utah Construction and Mining Company. It went into operation in 1963 with two reversible pump-turbine units that could each generate 175 megawatts (235,000 hp) of power. It was not
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inside the north upstream side of Johnson's Shut-Ins State Park. The river at the park is normally very shallow with rapids running over granite boulders. The flood destroyed many of the structures in the park and forced the closing of the trail connecting it to Taum Sauk Mountain.
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Minor leaks in the reservoir led to the construction of a collection pond and pumpback station to collect and return leaked water to the reservoir. Later, to reduce leakage, Geo-Synthetics installed lining material in the reservoir itself from September 13 to November 15, 2004.
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The utilization factor for the plant ranges from five to eight percent. This is relatively low when compared to the 20 percent utilization factors of other plants such as Blenheim-Gilboa and is due to the different operating philosophies and generation mix of various
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upon which the UR control system was based is frankly beyond imprudent – it is reckless. UE also knew or should have known that the upper Warrick probes had been reset above the lowest point at the top of the UR." (PSC Report page 71, definitions of Acronyms added)
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began to look for a site on which to build a new pumped storage plant. By 1958, company officials had decided to focus on sites with at least 300 feet (100 m) of vertical head, which would allow them to use a smaller storage reservoir. Union Electric hired
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and required particularly accurate control of the UR water level. Given that circumstance, UE's decision to continue operating Taum Sauk after the discovery of the failure of the gauge piping anchoring system and the consequent unreliability of the
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On December 14, 2005, a catastrophic failure in the upper reservoir dam put the plant out of operation until it was rebuilt, recertified, and reopened on April 21, 2010. The new upper reservoir dam, rebuilt from the ground up, is the largest
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April 1, 2010. The utility met the Missouri Public Service Commission’s in-service criteria for operations on April 15, and electricity was first generated from the new structure on April 21, 2010. The new dam was recognized by the
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A memo from Richard Cooper, superintendent of hydroelectric plant, indicated that the reservoir had a "Niagara Falls" style overflow on September 27 at the same spot that was breached (caused by wave action related to winds from
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Before the failure of the upper reservoir, visitors could drive to the top of Proffit Mountain and walk to an observation deck above the reservoir. Ameren operated a museum at the entrance gate highlighting the geologic and
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State Parks, Jerry Toops, his wife and three children were swept away when the wall of water obliterated their home. They survived, suffering from injuries and exposure. The children were transported to a hospital in
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The upper reservoir can hold about 1.5 billion US gallons (4,600 acre-feet; 5.7 million cubic metres) of water behind a wall nearly 100 feet (30 m) tall. It sits 760 feet (230 m) above the 450
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US gallons (3,800,000 m) of water in 12 minutes. The sudden release sent a 20-foot (6 m) crest of water northwest of the reservoir about 1.75 mi (3 km) down the ridge to the East Fork of the
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and operating the dam in an unsafe manner by routinely overfilling the reservoir caused the upper reservoir dam to overtop. There was no overflow spillway in the original reservoir.
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in October 2005, just months before the upper reservoir failed. It was subsequently rededicated as an IEEE Milestone in 2010 after the new upper reservoir dam was completed.
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The pump-turbine units were uprated in July 1972 from their initial rating of 175 MW each to 204 MW each, increasing the plant's overall rating from 350 MW to 408 MW.
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From 1998–1999, the turbine runners for both units were upgraded, resulting in improved flow rates and another power uprate to 225 MW per unit (450 MW total).
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rule, changes in safety management structure, financial accounting for the rebuild of the upper reservoir, and single point of management for the rebuild.
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The Missouri Public Service Commission (PSC) reopened its investigation and subsequently found the accident to be a failure of Ameren management, stating:
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In 2005, a large section of the upper reservoir failed, draining over 1 billion US gallons (3.8 gigalitres) of water in less than half an hour.
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that we have". An unusual feature is the upper reservoir which is constructed on a flat surface, requiring a dam around the entire perimeter.
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sites, there is no natural primary flow into the upper reservoir available for generation. It is therefore a net consumer of electricity; the
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and later released. One child was treated for severe burns which resulted from heat packs applied by rescue workers as treatment for
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Ameren had 90 days from the date of the report to tell the PSC how it will meet the recommendations of the report, which include a
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plant was constructed from 1960–1962 and was designed to help meet daytime peak electric power demand. It began operation in 1963.
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As of 2011, Ameren was reported to have paid a total of close to US$ 200 million in settlements related to the 2005 breach.
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http://www.stltoday.com/stltoday/news/stories.nsf/stlouiscitycounty/story/06323A30D4407520862572F4000BDE98?OpenDocument
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http://www.stltoday.com/stltoday/news/stories.nsf/missouristatenews/story/0A4A827BA5C98DB2862570D7004F9A49?OpenDocument
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to its comparable elevation (1,720 feet (520 m), the 6th-highest point in Missouri), its close proximity to the
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FERC’s abdication of jurisdiction over hydroelectric dams on nonnavigable rivers, 27 Envtl. L. 741 (Fall 1997)
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http://www.prnewswire.com/cgi-bin/stories.pl?ACCT=104&STORY=/www/story/06-08-2007/0004604925&EDATE=
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sued Ameren for "actual and punitive damages" alleging Ameren was reckless in its operation of the plant.
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of Missouri. The power plant was frequently visited by geology students because of a striking example of
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29 miles (47 km) below the Lower Reservoir, the dam of which was not damaged by the rising waters.
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The rebuilt upper reservoir of the Taum Sauk plant, nearing completion in this photo, is the largest
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Missouri University of Science & Technology: The 2005 Upper Taum Sauk Dam Failure:A Case History
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Missouri Attorney General Press Release with link to Petition for lawsuit against Ameren for breach
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The completed replacement reservoir, viewed from the scour created by the collapse of the original
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http://www.bpa.gov/power/PG/NW-HydroOperators-Forum/Materials/CaseStudyT-Sauk_Ehasz-Paul.pdf
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The original upper reservoir, full to within a few feet of the top of the parapet wall
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Water stored in the upper reservoir is used to generate electricity during peak demand
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with its "Award of Excellence in the Constructed Project". On September 27, 2010,
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store huge amounts of energy led its operator to call Taum Sauk "the biggest
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The Taum Sauk plant is an open-loop pure pumped operation: unlike some other
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flood. By storing most of the deluge it spared towns downstream, including
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http://www.kmox.com/pages/603101.php?contentType=4&contentId=628667=
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Rogers, J. David; Watkins, Conor M.; Chung, Jae-Won (August 1, 2010).
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March, Patrick; Ratliff, Matthew; Kirchner, Phillip (July 16, 2013).
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The Taum Sauk upper reservoir sits on ridge just below the summit of
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https://www.mirrorpond.info/1997/09/ferc-abdication-of-jurisdiction/
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Aerial photos show the upper reservoir before and after its failure.
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Hendron, Alfred J.; Ehasz, Joseph L.; Paul, Kermit (May 24, 2006).
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that the gauges were moved before investigators were on the scene.
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FERC Independent Panel of Consultants (IPOC) Report, May 25, 2006
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https://www.courtlistener.com/opinion/107050/fpc-v-union-elec-co/
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Pumped-storage hydroelectric power stations in the United States
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Aerial photo shows reconstruction progress in late November 2009
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A broad swath of dense forest was washed away and scoured to
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Location of Taum Sauk Hydroelectric Power Station in Missouri
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The two generators can each produce up to 225 MW of power
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and tools are available to assist in formatting, such as
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and has requested the Missouri Highway Patrol's report.
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delivered a report of its criminal investigation to the
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No one was killed by the failure. The superintendent of
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in the rock layers exposed by the plant's construction.
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Sverdrup-Parcel & Associates intended to recommend
1520:"The 2005 Upper Taum Sauk Dam Failure: A Case History" 1452:"FERC: Taum Sauk Pumped Storage Project - Description" 785:, United States about 90 miles (140 km) south of 3096:
Buildings and structures in Reynolds County, Missouri
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Rogers, J. David; Watkins, Conor; Hoffman, David J.
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Archived from the original on October 23, 2005 1599: 1597: 848:into a lower reservoir on the East Fork of the 1632: 1630: 893:hydroelectric plant, which gives it a greater 2307: 1832:"AmerenUE Taum Sauk Reservoir Lining Project" 1513: 1511: 1509: 1507: 1148:assisted by the US Attorney's Office for the 540:70,000 cubic feet per second (2,000 m/s) 8: 2256:Taum Sauk and Johnson's Shut-ins restoration 2233:National Weather Service, St. Louis Office: 1235:List of hydroelectric power station failures 406:5,358 cubic feet per second (151.7 m/s) 37:, which are uninformative and vulnerable to 1335:"Taum Sauk Energy Center | Ameren Missouri" 52:and maintains a consistent citation style. 2473: 2314: 2300: 2292: 1695:FPC v. Union Elec. Co., 381 U.S. 90 (1965) 1144:KMOX radio in St. Louis reported that the 117: 108: 94:Learn how and when to remove this message 1527:Environmental and Engineering Geoscience 1431:"Taum Sauk Pumped Storage Energy Center" 380:3,200,640 cubic yards (2,447,060 m) 3066:Energy infrastructure completed in 1963 2246:Mid-Continent Geographic Science Center 1292: 1246: 106:Dam in St. Francois Mountains, Missouri 3076:Hydroelectric power plants in Missouri 2220:Daily Journal (Park Hills, Missouri): 2134:: CS1 maint: archived copy as title ( 2127: 1845: 1644:. PennWell Corporation. April 16, 2010 112:Taum Sauk Hydroelectric Power Station 7: 1988:Federal Energy Regulatory Commission 1955:Federal Energy Regulatory Commission 1772:Federal Energy Regulatory Commission 1732:Federal Energy Regulatory Commission 1372:Federal Energy Regulatory Commission 1305:Rogers, J. David; Watkins, Conor M. 1120:Federal Energy Regulatory Commission 965:to evaluate potential sites in the 840:are turned by water flowing from a 44:Please consider converting them to 2992:Renewable energy commercialization 2093:Water Power Magazine on PSC Report 1146:US Environmental Protection Agency 561:6,350 acre-feet (7,830,000 m) 419:4,350 acre-feet (5,370,000 m) 14: 3086:Dam failures in the United States 1481:Danes and Moore (November 1981). 3040: 3039: 2460: 1611:. April 21, 2010. Archived from 1374:. April 28, 2006. Archived from 1273: 1261: 1249: 1167:of only one or two feet left no 963:Sverdrup-Parcel & Associates 144: 137: 22: 3111:Black River (Arkansas–Missouri) 3071:1963 establishments in Missouri 2042:St. Louis Post Dispatch article 1664:"Taum Sauk Facts & Figures" 303:(previously AmerenUE, formerly 3101:Roller-compacted concrete dams 771:Taum Sauk pumped storage plant 289:US$ 490 million rebuild (2010) 48:to ensure the article remains 1: 2987:Renewable Energy Certificates 2947:Cost of electricity by source 2869:Arc-fault circuit interrupter 2745:High-voltage shore connection 1215:United States Society on Dams 1114:Litigation and investigations 996:Osage Power Plant/Bagnell Dam 922:Johnson's Shut-ins State Park 920:and from Route N approaching 571:88 square miles (230 km) 432:Maximum water depth 3002:Spark/Dark/Quark/Bark spread 2800:Transmission system operator 2760:Mains electricity by country 2337:Automatic generation control 2140:Link to PSC Report Full Text 1221:rededicated the plant as an 1150:Eastern District of Missouri 1024:2005 upper reservoir failure 979:East Fork of the Black River 834:pumped-storage hydroelectric 503:Elevation at crest 353:Elevation at crest 3027:List of electricity sectors 3022:Electric energy consumption 2740:High-voltage direct current 2715:Electric power transmission 2705:Electric power distribution 2382:Energy return on investment 2227:September 24, 2006, at the 2066:Report on EPA Investigation 1872:IEEE Global History Network 1734:. June 2007. Archived from 1547:10.2113/gseegeosci.16.3.257 645:December 20, 1963 257:December 20, 1963 3127: 2942:Carbon offsets and credits 2660:Three-phase electric power 2285:December 27, 2016, at the 653:, April 15, 2010 265:, April 15, 2010 3035: 2997:Renewable Energy Payments 2486:Fossil fuel power station 2458: 2273:December 7, 2006, at the 2206:Taum Sauk Reservoir fails 1138:Missouri Attorney General 874:roller-compacted concrete 754: 587:749.5 feet (228.4 m) 427:54.5 acres (22.1 ha) 348:6,800 feet (2,100 m) 132: 125:roller-compacted concrete 116: 2780:Single-wire earth return 2720:Electrical busbar system 2377:Energy demand management 1897:"Taum Sauk Rededication" 475:Height (foundation) 337:Height (foundation) 2911:Residual-current device 2901:Power system protection 2891:Generator interlock kit 2210:Ameren Press Releases: 1134:Missouri Highway Patrol 1016:The plant was named an 761:Taum Sauk Energy Center 723:Overall efficiency 700:Installed capacity 579:395 acres (160 ha) 448:Lower dam and spillways 443:1,597 feet (487 m) 356:1,601 feet (488 m) 320:Upper dam and spillways 239:Construction began 2695:Distributed generation 2367:Electric power quality 1922:June 23, 2017, at the 1710:July 18, 2018, at the 1209: 1201: 1179: 1053: 1045: 1033: 967:St. Francois Mountains 958:Union Electric Company 861:laws of thermodynamics 827: 819: 811: 690:2 × 225 MW reversible 537:Spillway capacity 403:Spillway capacity 277:Construction cost 174:St. Francois Mountains 3091:Disasters in Missouri 2967:Fossil fuel phase-out 2735:Electricity retailing 2730:Electrical substation 2710:Electric power system 2235:Taum Sauk Dam Failure 2083:on September 16, 2009 1207: 1199: 1161: 1051: 1044:by the escaping flow. 1039: 1031: 838:Electrical generators 825: 817: 809: 791:Lesterville, Missouri 779:St. Francois mountain 733:Storage capacity 682:860 feet (260 m) 618:37.52056°N 90.83444°W 584:Normal elevation 506:750 feet (230 m) 498:390 feet (120 m) 469:East Fork Black River 454:Type of dam 440:Normal elevation 326:Type of dam 205:37.53556°N 90.81806°W 127:dam in North America. 2323:Electricity delivery 2254:Ameren web pages on 2216:Media Release Detail 2212:Media Release Detail 2054:Ameren Press Release 797:. It is operated by 743:2017 generation 713:Capacity factor 642:Commission date 553:Lower Taum Sauk Lake 435:120 feet (37 m) 372:150 feet (46 m) 364:25 feet (7.6 m) 340:125 feet (38 m) 2932:Availability factor 2884:Sulfur hexafluoride 2765:Overhead power line 2665:Virtual power plant 2640:Induction generator 2593:Sustainable biofuel 2402:Home energy storage 2392:Grid energy storage 2357:Droop speed control 2222:Taum Sauk Dam Fails 2182:. November 28, 2007 1964:on January 20, 2019 1741:on January 20, 2019 1674:on December 1, 2017 1539:2010EEGeo..16..257R 1462:on January 20, 2019 1381:on January 20, 2019 737:8 hours (3600 MW·h) 623:37.52056; -90.83444 614: /  567:Catchment area 558:Total capacity 514:75 feet (23 m) 490:55 feet (17 m) 478:60 feet (18 m) 416:Total capacity 286:45.9 million (1963) 210:37.53556; -90.81806 201: /  2806:Transmission tower 2417:Nameplate capacity 2199:General references 1806:www.hydroworld.com 1210: 1202: 1079:Johnson's Shut-Ins 1054: 1046: 1034: 974:Taum Sauk Mountain 910:Taum Sauk Mountain 828: 820: 812: 529:Spillway type 398:Broad crested weir 395:Spillway type 361:Width (crest) 3053: 3052: 2957:Environmental tax 2837:Cascading failure 2606: 2605: 2442:Utility frequency 1812:on March 27, 2019 1127:State of Missouri 884:Size and location 767: 766: 576:Surface area 511:Width (base) 424:Surface area 369:Width (base) 254:Opening date 104: 103: 96: 54:Several templates 3118: 3106:Dams in Missouri 3043: 3042: 2952:Energy subsidies 2906:Protective relay 2847:Rolling blackout 2474: 2464: 2432:Power-flow study 2372:Electrical fault 2316: 2309: 2302: 2293: 2192: 2191: 2189: 2187: 2180:semissourian.com 2172: 2166: 2165: 2163: 2161: 2147: 2141: 2139: 2133: 2125: 2123: 2121: 2115: 2109:. 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Archived from 1448: 1442: 1441: 1439: 1437: 1429:Witt, Warren A. 1426: 1420: 1419: 1417: 1415: 1406: 1397: 1391: 1390: 1388: 1386: 1380: 1369: 1361: 1350: 1349: 1347: 1345: 1331: 1325: 1324: 1322: 1320: 1311: 1302: 1280:Renewable energy 1278: 1277: 1266: 1265: 1254: 1253: 1252: 1245: 1169:margin for error 924:from the south. 906:Proffit Mountain 846:Proffit Mountain 763: 660: 658: 652: 650: 649:1963-December-20 629: 628: 626: 625: 624: 619: 615: 612: 611: 610: 607: 272: 270: 264: 262: 261:1963-December-20 249: 247: 216: 215: 213: 212: 211: 206: 202: 199: 198: 197: 194: 148: 147: 141: 121: 109: 99: 92: 88: 85: 79: 77: 66: 26: 25: 18: 3126: 3125: 3121: 3120: 3119: 3117: 3116: 3115: 3056: 3055: 3054: 3049: 3031: 3015: 3013: 3006: 2937:Capacity factor 2925: 2923: 2916: 2896:Numerical relay 2874:Circuit breaker 2862: 2860: 2853: 2815: 2755:Load management 2725:Electrical grid 2690:Demand response 2683: 2678: 2669: 2650:Microgeneration 2602: 2517: 2465: 2456: 2452:Vehicle-to-grid 2325: 2320: 2287:Wayback Machine 2275:Wayback Machine 2264: 2229:Wayback Machine 2201: 2196: 2195: 2185: 2183: 2174: 2173: 2169: 2159: 2157: 2149: 2148: 2144: 2126: 2119: 2117: 2116:on May 17, 2008 2113: 2106: 2104:"Archived copy" 2102: 2101: 2097: 2086: 2084: 2075: 2074: 2070: 2062: 2058: 2050: 2046: 2038: 2034: 2023: 2021: 2012: 2011: 2007: 1997: 1995: 1982: 1981: 1977: 1967: 1965: 1961: 1950: 1946: 1945: 1941: 1934: 1930: 1924:Wayback Machine 1915: 1911: 1901: 1899: 1895: 1894: 1887: 1877: 1875: 1866: 1865: 1861: 1844: 1837: 1835: 1830: 1829: 1825: 1815: 1813: 1799: 1798: 1794: 1784: 1782: 1778: 1767: 1762: 1761: 1754: 1744: 1742: 1738: 1727: 1723: 1722: 1718: 1712:Wayback Machine 1703: 1699: 1691: 1687: 1677: 1675: 1662: 1661: 1657: 1647: 1645: 1636: 1635: 1628: 1618: 1616: 1603: 1602: 1595: 1585: 1583: 1574: 1573: 1569: 1559: 1557: 1522: 1517: 1516: 1505: 1491: 1489: 1485: 1480: 1479: 1475: 1465: 1463: 1450: 1449: 1445: 1435: 1433: 1428: 1427: 1423: 1413: 1411: 1404: 1399: 1398: 1394: 1384: 1382: 1378: 1367: 1363: 1362: 1353: 1343: 1341: 1333: 1332: 1328: 1318: 1316: 1309: 1304: 1303: 1294: 1289: 1284: 1272: 1260: 1250: 1248: 1240: 1231: 1194: 1154:Clean Water Act 1116: 1108:Clearwater Lake 1026: 1004: 987: 954: 949: 930:natural history 886: 830: 829: 799:Ameren Missouri 795:Reynolds County 759: 758: 687:Pump-generators 656: 654: 648: 646: 637:Ameren Missouri 622: 620: 616: 613: 608: 605: 603: 601: 600: 545:Lower reservoir 411:Upper reservoir 377:Dam volume 315:Ameren Missouri 301:Ameren Missouri 292: 268: 266: 260: 258: 245: 243: 209: 207: 203: 200: 195: 192: 190: 188: 187: 157: 156: 155: 154: 151: 150: 149: 128: 107: 100: 89: 83: 80: 68: 57: 43: 27: 23: 12: 11: 5: 3124: 3122: 3114: 3113: 3108: 3103: 3098: 3093: 3088: 3083: 3078: 3073: 3068: 3058: 3057: 3051: 3050: 3048: 3047: 3036: 3033: 3032: 3030: 3029: 3024: 3018: 3016: 3012:Statistics and 3011: 3008: 3007: 3005: 3004: 2999: 2994: 2989: 2984: 2979: 2974: 2969: 2964: 2962:Feed-in tariff 2959: 2954: 2949: 2944: 2939: 2934: 2928: 2926: 2921: 2918: 2917: 2915: 2914: 2908: 2903: 2898: 2893: 2888: 2887: 2886: 2881: 2871: 2865: 2863: 2858: 2855: 2854: 2852: 2851: 2850: 2849: 2839: 2834: 2829: 2823: 2821: 2817: 2816: 2814: 2813: 2808: 2803: 2797: 2792: 2787: 2782: 2777: 2772: 2767: 2762: 2757: 2752: 2750:Interconnector 2747: 2742: 2737: 2732: 2727: 2722: 2717: 2712: 2707: 2702: 2700:Dynamic demand 2697: 2692: 2686: 2684: 2674: 2671: 2670: 2668: 2667: 2662: 2657: 2652: 2647: 2642: 2637: 2632: 2630:Combined cycle 2627: 2622: 2616: 2614: 2608: 2607: 2604: 2603: 2601: 2600: 2595: 2590: 2585: 2584: 2583: 2578: 2573: 2568: 2563: 2553: 2548: 2543: 2538: 2533: 2527: 2525: 2519: 2518: 2516: 2515: 2510: 2509: 2508: 2503: 2498: 2493: 2482: 2480: 2471: 2467: 2466: 2459: 2457: 2455: 2454: 2449: 2444: 2439: 2434: 2429: 2424: 2419: 2414: 2409: 2407:Load-following 2404: 2399: 2394: 2389: 2384: 2379: 2374: 2369: 2364: 2362:Electric power 2359: 2354: 2349: 2344: 2339: 2333: 2331: 2327: 2326: 2321: 2319: 2318: 2311: 2304: 2296: 2290: 2289: 2277: 2263: 2262:External links 2260: 2259: 2258: 2252: 2247: 2237: 2231: 2218: 2208: 2200: 2197: 2194: 2193: 2167: 2142: 2095: 2068: 2056: 2044: 2032: 2005: 1975: 1939: 1928: 1909: 1885: 1859: 1823: 1792: 1752: 1716: 1697: 1685: 1655: 1642:HydroWorld.com 1626: 1593: 1582:. May 28, 2010 1567: 1533:(3): 257–289. 1503: 1473: 1443: 1421: 1392: 1351: 1326: 1291: 1290: 1288: 1285: 1283: 1282: 1270: 1258: 1238: 1237: 1230: 1227: 1223:IEEE Milestone 1193: 1192:Reconstruction 1190: 1115: 1112: 1072:Hurricane Rita 1025: 1022: 1018:IEEE Milestone 1003: 1000: 986: 983: 953: 952:Site selection 950: 948: 945: 885: 882: 857:pumped storage 804: 803: 765: 764: 752: 751: 745: 739: 738: 735: 729: 728: 725: 719: 718: 715: 709: 708: 702: 696: 695: 688: 684: 683: 680: 678:Hydraulic head 674: 673: 671:Pumped-storage 668: 662: 661: 643: 639: 638: 635: 631: 630: 598: 594: 593: 589: 588: 585: 581: 580: 577: 573: 572: 569: 563: 562: 559: 555: 554: 551: 547: 546: 542: 541: 538: 534: 533: 530: 526: 525: 522: 516: 515: 512: 508: 507: 504: 500: 499: 496: 492: 491: 488: 480: 479: 476: 472: 471: 466: 462: 461: 456: 450: 449: 445: 444: 441: 437: 436: 433: 429: 428: 425: 421: 420: 417: 413: 412: 408: 407: 404: 400: 399: 396: 392: 391: 388: 382: 381: 378: 374: 373: 370: 366: 365: 362: 358: 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2843: 2840: 2838: 2835: 2833: 2830: 2828: 2825: 2824: 2822: 2820:Failure modes 2818: 2812: 2809: 2807: 2804: 2801: 2798: 2796: 2793: 2791: 2788: 2786: 2783: 2781: 2778: 2776: 2773: 2771: 2770:Power station 2768: 2766: 2763: 2761: 2758: 2756: 2753: 2751: 2748: 2746: 2743: 2741: 2738: 2736: 2733: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2706: 2703: 2701: 2698: 2696: 2693: 2691: 2688: 2687: 2685: 2682: 2677: 2672: 2666: 2663: 2661: 2658: 2656: 2655:Rankine cycle 2653: 2651: 2648: 2646: 2643: 2641: 2638: 2636: 2635:Cooling tower 2633: 2631: 2628: 2626: 2623: 2621: 2618: 2617: 2615: 2613: 2609: 2599: 2596: 2594: 2591: 2589: 2586: 2582: 2579: 2577: 2574: 2572: 2569: 2567: 2564: 2562: 2559: 2558: 2557: 2554: 2552: 2549: 2547: 2544: 2542: 2539: 2537: 2534: 2532: 2529: 2528: 2526: 2524: 2520: 2514: 2511: 2507: 2504: 2502: 2499: 2497: 2494: 2492: 2489: 2488: 2487: 2484: 2483: 2481: 2479: 2478:Non-renewable 2475: 2472: 2468: 2463: 2453: 2450: 2448: 2445: 2443: 2440: 2438: 2435: 2433: 2430: 2428: 2425: 2423: 2420: 2418: 2415: 2413: 2410: 2408: 2405: 2403: 2400: 2398: 2397:Grid strength 2395: 2393: 2390: 2388: 2385: 2383: 2380: 2378: 2375: 2373: 2370: 2368: 2365: 2363: 2360: 2358: 2355: 2353: 2352:Demand factor 2350: 2348: 2345: 2343: 2340: 2338: 2335: 2334: 2332: 2328: 2324: 2317: 2312: 2310: 2305: 2303: 2298: 2297: 2294: 2288: 2284: 2281: 2278: 2276: 2272: 2269: 2266: 2265: 2261: 2257: 2253: 2251: 2248: 2245: 2241: 2238: 2236: 2232: 2230: 2226: 2223: 2219: 2217: 2213: 2209: 2207: 2203: 2202: 2198: 2181: 2177: 2171: 2168: 2156: 2152: 2146: 2143: 2137: 2131: 2112: 2105: 2099: 2096: 2082: 2078: 2072: 2069: 2065: 2060: 2057: 2053: 2048: 2045: 2041: 2036: 2033: 2019: 2015: 2009: 2006: 1993: 1989: 1985: 1979: 1976: 1960: 1956: 1949: 1943: 1940: 1937: 1932: 1929: 1925: 1921: 1918: 1913: 1910: 1898: 1892: 1890: 1886: 1873: 1869: 1863: 1860: 1855: 1849: 1833: 1827: 1824: 1811: 1807: 1803: 1796: 1793: 1777: 1773: 1766: 1759: 1757: 1753: 1737: 1733: 1726: 1720: 1717: 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919: 915: 911: 907: 902: 900: 897:than that of 896: 892: 883: 881: 879: 878:North America 875: 869: 867: 862: 858: 853: 851: 847: 843: 839: 835: 824: 816: 808: 802: 800: 796: 792: 788: 784: 780: 776: 775:power station 772: 762: 757: 753: 750: 746: 744: 740: 736: 734: 730: 726: 724: 720: 716: 714: 710: 707: 703: 701: 697: 693: 689: 685: 681: 679: 675: 672: 669: 667: 663: 657:2010-April-15 644: 640: 636: 632: 627: 599: 595: 592:Power Station 590: 586: 582: 578: 574: 570: 568: 564: 560: 556: 552: 548: 543: 539: 535: 531: 527: 523: 521: 517: 513: 509: 505: 501: 497: 493: 489: 486: 483:Height ( 481: 477: 473: 470: 467: 463: 460: 457: 455: 451: 446: 442: 438: 434: 430: 426: 422: 418: 414: 409: 405: 401: 397: 393: 389: 387: 383: 379: 375: 371: 367: 363: 359: 355: 351: 347: 343: 339: 335: 332: 329: 327: 323: 318: 314: 310: 306: 302: 299: 295: 288: 285: 282: 281: 279: 275: 269:2010-April-15 256: 252: 241: 237: 233: 229: 226: 223: 219: 214: 186: 182: 179: 175: 172: 168: 165:United States 164: 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Taum Sauk Hydroelectric Power Station is located in Missouri
St. Francois Mountains
Missouri
37°32′08″N 90°49′05″W / 37.53556°N 90.81806°W / 37.53556; -90.81806
Power
US$
Ameren Missouri
Union Electric
Type of dam
Gravity dam
Spillways
Type of dam
Gravity dam
East Fork Black River
thalweg
Spillways
Catchment area
37°31′14″N 90°50′04″W / 37.52056°N 90.83444°W / 37.52056; -90.83444

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