Thornwood High School
Cook County, Illinois · EIA plant ID 55004 · Operator: Thorton Township School Dist
Nameplate1MWSummer 1 MW
Generators2in service
Net generation0GWh12 mo to Aug 2026
Capacity factor0%gas/coal/oil units, summer MW
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online1996Runs as rarely runs
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
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.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 3 | 24.5% | 8,111 |
| 2002 | 3 | 24.4% | 11,470 |
| 2003 | 2.7 | 21.8% | 11,740 |
| 2004 | 2.2 | 17.8% | 14,327 |
| 2005 | 2.2 | 17.6% | 13,116 |
| 2006 | 2 | 16.2% | 13,608 |
| 2007 | 1.2 | 9.9% | 5,021 |
| 2008 | 1.3 | 10.4% | 4,183 |
| 2009 | 0.7 | 6.0% | 5,332 |
| 2010 | 0.7 | 5.4% | 5,914 |
| 2011 | 0.6 | 5.1% | 5,911 |
| 2012 | 0.9 | 7.5% | 8,667 |
| 2013 | 0.8 | 6.3% | 9,857 |
| 2014 | 0.1 | 1.0% | 8,917 |
| 2015 | 0.3 | 2.4% | 8,405 |
| 2016 | 0 | 0.1% | — |
| 2017 | 0 | 0.0% | — |
| 2018 | 0 | 0.0% | — |
| 2019 | 0 | 0.0% | — |
| 2020 | 0 | 0.0% | — |
| 2021 | 0 | 0.0% | — |
| 2022 | 0 | 0.0% | — |
| 2023 | 0 | 0.0% | — |
| 2024 | 0 | 0.0% | — |
| 2025 | 0 | 0.0% | — |
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 ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Internal Combustion Engine | IC | 0.7 | 0.7 | Sep 1996 | Operating (Out of service, expected back within the year) | — | coming soon |
| 2 | Natural Gas Internal Combustion Engine | IC | 0.7 | 0.7 | Sep 1996 | Operating (Out of service, expected back within the year) | — | coming soon |
Owner / operator
Operator: Thorton Township School Dist. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Thorton Township School Dist | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| W 167th St | — | 2.2 km |
| Thornridge High School | 1 MW | 4.3 km |
| North Cottage Grove Solar 1, LLC | 2 MW | 6.4 km |
| Gooseberry Solar, LLC | 2 MW | 7.5 km |
| Cottage Grove Ave Solar 1 LLC | 2 MW | 7.7 km |
| CID Gas Recovery | 3 MW | 8.6 km |