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South Main Street

Ogle County, Illinois · EIA plant ID 961 · Operator: Rochelle Municipal Utilities
OilNatural Gas Internal Combustion EnginePetroleum LiquidsPJMBA: PJM
Nameplate16MWSummer 14 MW
Generators8in service
Net generation1GWh12 mo to Dec 2025
Capacity factor1%gas/coal/oil units, summer MW
Heat rate9,957Btu/kWhfossil units, electric fuel, HHV
First online1967Runs as rarely runs

Monthly net generation

EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
0200400600800MWh2001200320052007200920112013201520172019202120232025

Capacity factor by year

Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
0%1%1%2%200520102015202020250.9% · 12 mo

Heat rate by year

Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
010,00020,00030,000200520102015202020259,957 Btu/kWh · 12 mo
Annual data table
YearNet GWhCapacity factorHeat rate (Btu/kWh)
20018——
20020.2——
200300.0%14,965
200400.0%—
20050.10.2%16,253
20060.20.7%13,635
200700.0%—
200800.0%—
20090.20.5%17,196
20100.20.5%19,177
20110.10.4%17,538
20120.20.6%18,027
20130.30.9%16,612
20140.10.3%15,656
20150.20.3%27,804
20161.51.4%8,100
20170.10.1%—
20181.51.2%9,829
20191.10.9%9,950
20201.71.4%9,859
20211.31.1%9,861
20221.20.9%9,875
20230.70.5%9,916
20241.31.0%9,763
20251.20.9%9,957

Generators

EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
Gen IDTechnologyPrime moverNameplate MWSummer MWOnlineStatusPlanned retirementOEM / model
1Natural Gas Internal Combustion EngineIC2.51.6Sep 1967Operating (Standby / backup)—coming soon
13Petroleum LiquidsIC1.81.8Oct 2014Operating (Standby / backup)—coming soon
14Petroleum LiquidsIC1.81.8Oct 2014Operating (Standby / backup)—coming soon
15Petroleum LiquidsIC1.81.8Oct 2014Operating (Standby / backup)—coming soon
16Petroleum LiquidsIC1.81.8Jun 2016Operating—coming soon
17Petroleum LiquidsIC1.81.8Jun 2016Operating—coming soon
18Petroleum LiquidsIC1.81.8Jun 2016Operating—coming soon
2Natural Gas Internal Combustion EngineIC2.52Sep 1967Operating (Standby / backup)—coming soon
S1Natural Gas Steam TurbineST11.511.5Feb 1962Retired Aug 2003—coming soon

Owner / operator

Operator: Rochelle Municipal Utilities. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Rochelle Municipal Utilities100.0%16 MW

Nearby plants

Within 80 km.
North Ninth Street17 MW0.1 km
1515 S Caron Roadretired0.3 km
IL Rochelle 975 S. Caron Rd2 MW0.5 km
Rochelle Energy Center5 MW4.6 km
Steward Creek Solar Phase 1—11.7 km
Tower Road Solar, LLC CSG2 MW15.5 km