Union Electric Co - (MO)
1901 Chouteau Avenue St Louis, MO 63103Company Summary Information
Union Electric Co - (MO) is ranked #23 out of 5,337 utilities nationwide in terms of total annual net electricity generation, and they are ranked #6 out of 162 utilities in terms of total annual net electricity generation from coal .
Union Electric Co - (MO) generated 10.7 TWh during the 3-month period between September 2025 to December 2025.
According to FERC EQR data, Union Electric Co - (MO) had a total of $687.1M in seller transasctions and $457.5k in buyer transasctions in 2025 Q2.
| Company Name | Union Electric Co - (MO) |
|---|---|
| Location | 1901 Chouteau Avenue St Louis, MO 63103 |
| EIA Utility Type | Investor-Owned Utility |
| EIA Utility Dates | Jan 2001 to May 2026 |
| EIA Annual Generation | 34.7 TWh |
| EIA Power Plants | 34 |
| Fuel Types | Coal Nuclear Hydroelectric Conventional Wind Solar Natural Gas Distillate Fuel Oil |
| Ranked #23 out of 5,337 Utilities Nationwide by Annual Generation | |
| Ranked #6 out of 162 Utilities Nationwide in terms of Coal Generation | |
FERC Seller Summary
| Seller Dates Available | Jul 2013 to Oct 2025 |
|---|---|
| Seller Total Transaction Charges | $17.97B |
| Seller Total Transactions | 21,061,028 |
| Seller 2025 Q2 Transaction Charges | $687.14M |
| Seller 2025 Q2 Transactions | 740,591 |
FERC Buyer Summary
| Buyer Dates Available | Jul 2013 to Sep 2025 |
|---|---|
| Buyer Total Transaction Charges | $223.32M |
| Buyer Total Transactions | 196 |
| Buyer 2025 Q2 Transaction Charges | $457.50k |
| Buyer 2025 Q2 Transactions | 2 |
Map of Union Electric Co - (MO) Locations
Register Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Union Electric Co - (MO).
Monthly Electricity Generation by Type
Monthly electricity generation by source as reported by the EIA
Monthly FERC Transaction Charges by Type
Monthly aggregates and sums are derived from FERC Electronic Quarterly Reports (EQR)
Power Plants Operated by Union Electric Co - (MO)
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Atchison County Wind | Westboro, Missouri | 812 GWh | Feb 2021 | May 2026 | Wind |
| Audrain Generating Station | Vandalia, Missouri | 403 GWh | Jan 2001 | Dec 2025 | Natural Gas |
| Boomtown Renewable Energy Center | Carmi, Illinois | 290 GWh | Nov 2024 | May 2026 | Solar |
| Bowling Green Renewable Energy Center | Missouri | 11 GWh | - | May 2026 | Solar |
| Callaway | Fulton, Missouri | 9 TWh | Nov 1984 | May 2026 | Nuclear |
| Cape Girardeau Renewable Energy Center | Cape Girardeau, Missouri | 2 GWh | Oct 2021 | Dec 2025 | Solar |
| Cass County Renewable Energy Center | Beardstown, Illinois | 306 GWh | Nov 2024 | May 2026 | Solar |
| Castle Bluff Energy Center | St. Louis, Missouri | - | - | - | |
| Fairgrounds | Jefferson City, Missouri | 21 MWh | Jul 1974 | Dec 2025 | Distillate Fuel Oil |
| Goose Creek Energy Center | Monticello, Illinois | -1 GWh | Apr 2003 | Dec 2025 | |
| High Prairie Wind Farm | Queen City, Missouri | 824 GWh | Nov 2020 | May 2026 | Wind |
| Howard Bend | Chesterfield, Missouri | - | Jun 1973 | Dec 2014 | |
| Huck Finn Renewable Energy Center | Vandalia, Missouri | 428 GWh | Nov 2024 | May 2026 | Solar |
| Keokuk | Keokuk, Iowa | 962 GWh | Jul 1913 | Dec 2025 | Water |
| Kinmundy | Patoka, Illinois | 3 GWh | Mar 2001 | Dec 2025 | Natural Gas |
| Kirksville | Kirksville, Missouri | - | Nov 1967 | Dec 2017 | |
| Labadie | Labadie, Missouri | 15 TWh | May 1970 | May 2026 | Subbituminous Coal : 99.9% |
| Meramec | St. Louis, Missouri | - | Apr 1953 | May 2023 | |
| Mexico | Mexico, Missouri | 2 GWh | Aug 1978 | Dec 2025 | Distillate Fuel Oil |
| Moberly | Moberly, Missouri | 257 MWh | Jul 1978 | Dec 2025 | Distillate Fuel Oil |
| Montgomery County Community Solar Center | New Florence, Missouri | 7 GWh | Feb 2022 | Dec 2025 | Solar |
| Moreau | Moreau, Missouri | 2 GWh | Jul 1978 | Dec 2025 | Distillate Fuel Oil |
| O'Fallon Renewable Energy Center | O'Fallon, Missouri | 1 GWh | Nov 2014 | Aug 2025 | Solar |
| Osage Dam | Eldon, Missouri | 499 GWh | Sep 1931 | Dec 2025 | Water |
| Peno Creek | Bowling Green, Missouri | 156 GWh | Apr 2002 | Dec 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Pinckneyville | Pinckneyville, Illinois | 67 GWh | May 2000 | Dec 2025 | Natural Gas |
| Raccoon Creek Energy Center | Flora, Illinois | -3 GWh | May 2002 | Dec 2025 | |
| Renewable Energy Center at BJH | St Louis, Missouri | 677 MWh | Sep 2019 | Apr 2025 | Solar |
| Rush Island | Festus, Missouri | - | Feb 1976 | Sep 2024 | |
| Sioux | West Alton, Missouri | 4 TWh | Apr 1967 | May 2026 | Subbituminous Coal : 78.0% Bituminous Coal : 21.9% |
| Taum Sauk | Lesterville, Missouri | -155 GWh | Nov 1963 | May 2026 | |
| Vandalia Renewable Energy Center | Vandalia, Missouri | 46 GWh | Oct 2025 | May 2026 | Solar |
| Venice | Venice, Illinois | 18 GWh | May 2002 | Dec 2025 | Natural Gas |
| Viaduct | Cape Girardeau, Missouri | - | - | Dec 2010 |
Other Companies Listed Alphabetically
A list of companies close to Union Electric Co - (MO) when arranged alphabetically. They do not neccessarily have any association with Union Electric Co - (MO).
| Company Name | Company Location | EIA Annual Generation | FERC 2025 Q2 Transactions |
|---|---|---|---|
| UGI Energy Services, LLC | Wyomissing, PA | 7.3 GWh | $511.64k |
| UGI Utilities Inc. | Denver, PA | - | $12.62M |
| UIL Distributed Resources, LLC | New Haven, CT | 17.0 GWh | $442.55k |
| Ulster Solar LLC | Juno Beach, FL | 1.6 GWh | - |
| Ulysses Solar, LLC | Washington, DC | 1.6 GWh | - |
| Umbriel Solar, LLC | Boston, MA | 348.1 GWh | $3.71M |
| Unalakleet Valley ELEC Coop | Unalakleet, AK | 4.0 GWh | - |
| Unbridled Solar, LLC | Bloomington, MN | - | $3.80M |
| Underhill Solar LLC | San Francisco, CA | 3.4 GWh | - |
| Union Carbide Corp-Seadrift | Midland, MI | 713.8 GWh | $3.22M |
| Union Falls Hydro Power LP | Montreal, QB | 10.6 GWh | - |
| Unisea Inc | Dutch Harbor, AK | 30.3 GWh | - |
| Unison Energy LLC | Greenwich, CT | 20.6 GWh | - |
| United Illuminating Co | Orange, CT | 55.7 GWh | $85.14M |
| United States Solar Corporation | Fairfield, CT | 131.9 GWh | - |
| United States Sugar Corp | Clewiston, FL | 270.9 GWh | - |
| United Technologies | East Hartford, CT | 75.9 GWh | - |
| United Therapeutics Corporation | Silver Spring, MD | 9.7 GWh | - |
| Unitil Energy Systems, Inc. | Hampton, NH | - | $4.65M |
| University Of Alaska | Fairbanks, AK | 61.6 GWh | - |
Top 20 Companies Associated with Union Electric Co - (MO)
A list of the top 20 companies associated with Union Electric Co - (MO) in terms of total FERC EQR transactions charges. Total Transaction Charges are based on FERC EQR data obtained since Q3 2013.
| Company Name | 2025 Q2 Transactions w/ Union Electric Co - (MO) |
|---|---|
| Midcontinent Independent System Operator, Inc. | $683.20M |
| Southwest Power Pool, Inc. | $3.73M |
| Karbone Energy LLC | $457.50k |
| City Of Perry, Missouri | $119.72k |
| Evergy Kansas Central, Inc. | $71.50k |
| City Of Linneus, Missouri | $16.44k |
| Associated Electric Cooperative, Inc. | - |
| Noble Americas Energy Solutions LLC | - |
| PJM Settlement, Inc. | - |
| Exelon Generation Company, LLC | - |
| AEP Energy Partners, Inc. | - |
| Ameren Illinois Company | - |
| American Electric Power Service Corporation | - |
| DTE Energy Trading, Inc. | - |
| Big Rivers Electric Corporation | - |
| BP Energy Company | - |
| City Of Kirkwood, Missouri | - |
| Conocophillips Company | - |
| Constellation Energy Generation, LLC | - |
| Direct Energy Business, LLC | - |
The 20 Most Recent FERC EQR Transactions
Displaying Results 1 to 20 of 21,061,224 ( 1.7s )| Seller Name | Buyer Name | Product | Transaction Group Ref # | Begin Date | End Date | Trade Date | Quantity | Price | Units | Transmission Charge | Transaction Charge | FERC Tariff Ref | Contract Service Agreement | Contract Filing Type | Contract Execution Date | Contract Commencement Date | Contract Termination Date | Timezone | Balancing Authority | Point of Delivery Hub | Class | Term | Increment | Increment Peaking | Filing Type | Broker Exchange |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Union Electric Company | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC | ENERGY | MISO_RT_NXE_9104809 | 2025-09-30 23:55 | 2025-10-01 00:00 | 2025-09-30 | 0.0363 | $21.60 | $/MWH | $0.00 | $0.78 | FERC ELECTRIC RATE SCHEDULE NO. 1 | 1019 | New | 2005-01-01 | 2005-01-01 | EasternStandard2 | AMMO | AMMO.LABADIE3 | Firm | ShortTerm | FiveMinute | OffPeak | New | ||
| Union Electric Company | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC | ENERGY | MISO_RT_NXE_9104512 | 2025-09-30 23:55 | 2025-10-01 00:00 | 2025-09-30 | 0.1496 | $21.60 | $/MWH | $0.00 | $3.23 | FERC ELECTRIC RATE SCHEDULE NO. 1 | 1019 | New | 2005-01-01 | 2005-01-01 | EasternStandard2 | AMMO | AMMO.LABADIE1 | Firm | ShortTerm | FiveMinute | OffPeak | New | ||
| Union Electric Company | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC | ENERGY | MISO_RT_NXE_9103755 | 2025-09-30 23:55 | 2025-10-01 00:00 | 2025-09-30 | 0.096 | $20.98 | $/MWH | $0.00 | $-2.01 | FERC ELECTRIC RATE SCHEDULE NO. 1 | 1019 | New | 2005-01-01 | 2005-01-01 | EasternStandard2 | AMMO | AMMO.CALLAWAY1 | Firm | ShortTerm | FiveMinute | OffPeak | New | ||
| Union Electric Company | MIDCONTINENT INDEPENDENT SYSTEM OPERATOR, INC | SUPPLEMENTAL RESERVE | MISO_RT_SUPP_9100079 | 2025-09-30 23:55 | 2025-10-01 00:00 | 2025-09-30 | 3.3333 | $0.16 | $/MWH | $0.00 | $0.53 | FERC ELECTRIC RATE SCHEDULE NO. 1 | 1019 | New | 2005-01-01 | 2005-01-01 | EasternStandard2 | AMMO | AMMO.PENOCTG3 | Firm | ShortTerm | FiveMinute | OffPeak | New | ||
Union Electric Co - (MO) Name and Address Permutations
Due to the nature of the data we have to make some assumptions when determining if two companies are the same. So to be transparent about how we're calculating some of the summary values, here are all the company names and addresses that were combined to create this record. While we try to make sure everything is as accurate as possible we can't guarantee complete accuracy for all records.
| Company Name | Company Address |
|---|---|
| Union Electric Co - (MO) | 1901 Chouteau Avenue St Louis, MO 63103 |
| UNION ELECTRIC COMPANY | One Ameren Plaza, 1901 Chouteau Avenue St Louis, MO 63103 |