Sibley Mill
Richmond County, Georgia · EIA plant ID 54322 · Operator: Augusta Canal Authority
Nameplate2MWSummer 2 MW
Generators3in service
Net generation7GWh12 mo to Aug 2026
Capacity factor40%hydro units, summer MW
Heat rate—thermal plants only
First online1946
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), hydro 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.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 17 | 92.3% | — |
| 2002 | 12.6 | 68.5% | — |
| 2003 | 15.7 | 85.3% | — |
| 2004 | 16.4 | 88.9% | — |
| 2005 | 8.9 | 48.2% | — |
| 2006 | 14 | 75.9% | — |
| 2007 | 11.6 | 63.2% | — |
| 2008 | 14.8 | 80.2% | — |
| 2009 | 3.3 | 18.0% | — |
| 2010 | 14.4 | 78.1% | — |
| 2011 | 13.7 | 74.3% | — |
| 2012 | 14.5 | 78.5% | — |
| 2013 | 15.2 | 82.8% | — |
| 2014 | 14.4 | 78.0% | — |
| 2015 | 14.3 | 77.6% | — |
| 2016 | 8.4 | 45.3% | — |
| 2017 | 12.9 | 70.1% | — |
| 2018 | 9.6 | 52.0% | — |
| 2019 | 8.8 | 47.9% | — |
| 2020 | 10.1 | 54.8% | — |
| 2021 | 11.2 | 60.8% | — |
| 2022 | 11.9 | 64.8% | — |
| 2023 | 8.9 | 48.2% | — |
| 2024 | 6.6 | 35.6% | — |
| 2025 | 8 | 43.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 2 | Conventional Hydroelectric | HY | 0.6 | 0.6 | Jan 1946 | Operating | — | coming soon |
| 3 | Conventional Hydroelectric | HY | 0.7 | 0.7 | Jan 1946 | Operating | — | coming soon |
| 4 | Conventional Hydroelectric | HY | 0.8 | 0.8 | Jan 1946 | Operating | — | coming soon |
Owner / operator
Operator: Augusta Canal Authority. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Augusta Canal Authority | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| King Mill | 2 MW | 0.3 km |
| Graniteville Enterprise Division | 1 MW | 1.5 km |
| Urquhart | 759 MW | 9.6 km |
| Stevens Creek | 18 MW | 9.9 km |
| Richmond Hayes Solar | 2 MW | 14 km |
| Fort Gordon Solar Facility | 30 MW | 17.7 km |