Southern Illinois Power Coop
11543 Lake Of Egypt Road Marion, IL 62959Company Summary Information
Southern Illinois Power Coop is ranked #575 out of 5,093 utilities nationwide in terms of total annual net electricity generation, and they are ranked #103 out of 164 utilities in terms of total annual net electricity generation from coal .
Southern Illinois Power Coop generated 325.6 GWh during the 3-month period between June 2025 to September 2025.
According to FERC EQR data, Southern Illinois Power Coop had a total of $3.7M in buyer transasctions in 2025 Q2.
| Company Name | Southern Illinois Power Coop |
|---|---|
| Location | 11543 Lake Of Egypt Road Marion, IL 62959 |
| EIA Utility Type | Cooperative |
| EIA Utility Dates | Jan 2001 to Sep 2025 |
| EIA Annual Generation | 835.2 GWh |
| EIA Power Plants | 1 |
| Fuel Types | Coal Natural Gas Distillate Fuel Oil |
| Ranked #575 out of 5,093 Utilities Nationwide by Annual Generation | |
| Ranked #103 out of 164 Utilities Nationwide in terms of Coal Generation | |
FERC Buyer Summary
| Buyer Dates Available | Jul 2013 to Oct 2025 |
|---|---|
| Buyer Total Transaction Charges | $111.15M |
| Buyer Total Transactions | 71,193 |
| Buyer 2025 Q2 Transaction Charges | $3.69M |
| Buyer 2025 Q2 Transactions | 1,973 |
Map of Southern Illinois Power Coop Locations
Register Now for Comprehensive Access
Subscribe now to access all power plant data, utility information, FERC EQR data, and more for Southern Illinois Power Coop.
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 Southern Illinois Power Coop
| Plant | Location | Annual Generation | Initial Operation Date | Last Update | Fuel Types |
|---|---|---|---|---|---|
| Marion | Marion, Illinois | 762 GWh | May 1963 | Sep 2025 | Bituminous Coal : 85.9% Natural Gas : 14.0% |
Other Companies Listed Alphabetically
A list of companies close to Southern Illinois Power Coop when arranged alphabetically. They do not neccessarily have any association with Southern Illinois Power Coop.
Top 20 Companies Associated with Southern Illinois Power Coop
A list of the top 20 companies associated with Southern Illinois Power Coop 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/ Southern Illinois Power Coop |
|---|---|
| Big River Solar, LLC | $2.26M |
| Morgan Stanley Capital Group Inc. | $701.96k |
| Big Rivers Electric Corporation | $455.03k |
| Pioneer Trail Wind Farm, LLC | $276.36k |
| Hoosier Energy Rural Electric Cooperative, Inc. | - |
| Exelon Generation Company, LLC | - |
| Shell Energy North America (US), L.P. | - |
| Dynegy Marketing And Trade, LLC | - |
| Illinois Power Marketing Company, LLC | - |
| Nextera Energy Marketing, LLC | - |
| Union Electric Company | - |
| Wabash Valley Power Association, Inc. | - |
| Nextera Energy Power Marketing, LLC | - |
| DTE Energy Trading, Inc. | - |
| Trafigura Trading LLC | - |
| AEP Energy Partners, Inc. | - |
| Ameren Energy Marketing Company | - |
| Ameren Illinois Company | - |
| Cargill Power Markets, LLC | - |
| Constellation Energy Generation, LLC | - |
The 20 Most Recent FERC EQR Transactions
Displaying Results 1 to 20 of 71,221 ( 0.109s )| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trafigura Trading LLC | Southern Illinois power Cooperative | ENERGY | 1389252 | 2025-09-30 23:00 | 2025-10-01 00:00 | 2025-06-05 | 50 | $37.43 | $/MWH | $0.00 | $1,871.50 | Market Based Rates, FERC Electric Tariff No. 1, 0.0.0 | 1972 | New | 2025-05-27 | 2025-05-27 | EasternStandard2 | MISO | MISO_AMILG.BGS6 | Firm | ShortTerm | Monthly | FullPeriod | New | ||
| Pioneer Trail Wind Farm, LLC | Southern Illinois Power Cooperative | ENERGY | T32475_28755 | 2025-09-30 23:00 | 2025-10-01 00:00 | 2020-06-25 | 3.3 | $52.47 | $/MWH | $0.00 | $173.15 | FERC Electric Tariff, Orig. Vol. No. 1 | C4 | New | 2011-06-21 | 2011-01-19 | 2030-02-09 | EasternStandard2 | AMIL | AMIL_PTWF | Firm | ShortTerm | Yearly | NotApplicableIncrementPeaking | New | |
| Big River Solar, LLC | SOUTHERN ILLINOIS POWER COOPERATIVE | ENERGY | BR - 116 | 2025-09-01 00:00 | 2025-09-30 23:59 | 2021-12-31 | 20,725.9 | $17.76 | $/MWH | $0.00 | $368,189.28 | FERC Electric Tariff No. 1 | Big River - SIPC - 001 | New | 2021-05-04 | 2021-12-31 | 2042-05-31 | CentralPrevailing2 | MISO | MISO | UnitPowerSale | LongTerm | Yearly | NotApplicableIncrementPeaking | New | |
| Trafigura Trading LLC | Southern Illinois power Cooperative | ENERGY | 1389252 | 2025-09-30 22:00 | 2025-09-30 23:00 | 2025-06-05 | 50 | $37.43 | $/MWH | $0.00 | $1,871.50 | Market Based Rates, FERC Electric Tariff No. 1, 0.0.0 | 1972 | New | 2025-05-27 | 2025-05-27 | EasternStandard2 | MISO | MISO_AMILG.BGS6 | Firm | ShortTerm | Monthly | FullPeriod | New | ||