- Clean firm
- Operating
- 10 · 100 · 1,000 MW
Map
- Clean firm
- Operating
Upper Sterling: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Upper Sterling
Power plant · Hydro
Key facts
Power plant · Hydroran 1% of 2025 Out of service- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1988
- Net generation, 2025
- 163 MWh
- Grid
- 34 kV to City of Rock Falls - (IL) (MISO)
- Location
- Whiteside County, Illinois
- Operated by
- City of Rock Falls - (IL)SourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 163
MWh - Fuel burned, 2025
- 556
MMBtu - Capacity factor, 2025
- 0.9
% - Heat rate, 2025
- Not stated
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2025 | 163 | 556 | 0.9% | — |
| 2024 | 8,928 | 30,463 | 46.2% | — |
| 2023 | 9,194 | 31,369 | 47.7% | — |
| 2022 | 12,025 | 41,031 | 62.4% | — |
| 2021 | 9,891 | 87,476 | 51.3% | — |
| 2020 | 7,476 | 65,542 | 38.7% | — |
| 2019 | 7,121 | 63,414 | 37.0% | — |
| 2018 | 8,441 | 76,845 | 43.8% | — |
| 2017 | 10,664 | 98,247 | 55.3% | — |
| 2016 | 7,719 | 71,262 | 39.9% | — |
| 2015 | 10,078 | 93,916 | 52.3% | — |
| 2014 | 8,711 | 82,841 | 45.2% | — |
| 2013 | 6,590 | 62,876 | 34.2% | — |
| 2012 | 6,463 | 61,503 | 33.4% | — |
| 2011 | 6,771 | 65,788 | 35.1% | — |
| 2010 | 3,365 | 32,829 | 17.5% | — |
| 2009 | 5,964 | 58,210 | 30.9% | — |
| 2008 | 815 | 8,032 | 4.2% | — |
| 2007 | 5,241 | 51,801 | 27.2% | — |
| 2006 | 7,043 | 69,861 | 36.5% | — |
| 2005 | 6,203 | 62,024 | 32.2% | — |
| 2004 | 6,763 | 67,779 | 35.0% | — |
| 2003 | 8,300 | 85,000 | 43.1% | — |
| 2002 | 7,321 | 74,477 | 38.0% | — |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.