Port Wentworth Mill
Chatham County, Georgia · EIA plant ID 50804 · Operator: Weyerhaeuser NR Port Wentworth
Nameplate72MWSummer 72 MW
Generators2in service
Net generation449GWh12 mo to Dec 2025
Capacity factor63%other units, summer MW
Heat rate18,700Btu/kWhfossil units, electric fuel, HHV
First online1991
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), other 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) |
|---|---|---|---|
| 2003 | 0 | 0.0% | — |
| 2004 | 225 | 38.9% | 5,225 |
| 2005 | 272.5 | 47.9% | 5,225 |
| 2006 | 268.1 | 47.0% | 5,225 |
| 2007 | 292.8 | 51.2% | 5,225 |
| 2008 | 298.1 | 79.8% | 5,225 |
| 2009 | 283.6 | 79.5% | 5,225 |
| 2010 | 268.7 | 75.6% | 5,225 |
| 2011 | 271.3 | 76.8% | 5,226 |
| 2012 | 287.4 | 75.9% | 5,225 |
| 2013 | 282.6 | 80.6% | 5,225 |
| 2014 | 286.1 | 82.1% | 5,225 |
| 2015 | 305.7 | 65.0% | 5,225 |
| 2016 | 292.5 | 54.6% | 18,211 |
| 2017 | 350.4 | 61.5% | 18,700 |
| 2018 | 450.3 | 81.9% | 18,700 |
| 2019 | 463 | 81.8% | 18,700 |
| 2020 | 482.5 | 83.8% | 18,700 |
| 2021 | 455.7 | 79.3% | 18,700 |
| 2022 | 472 | 67.7% | 18,700 |
| 2023 | 433.2 | 60.8% | 18,700 |
| 2024 | 421 | 59.9% | 18,700 |
| 2025 | 449.2 | 63.0% | 18,700 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN4 | Wood/Wood Waste Biomass | ST | 47.3 | 47.3 | Aug 1991 | Operating | — | coming soon |
| GEN5 | Wood/Wood Waste Biomass | ST | 25 | 25 | Jan 2004 | Operating | — | coming soon |
Owner / operator
Operator: Weyerhaeuser NR Port Wentworth. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Weyerhaeuser NR Port Wentworth | 100.0% | 72 MW |
Nearby plants
Within 80 km.
| Imperial Savannah LP | 12 MW | 1.8 km |
| IKEA Savannah 490 | 2 MW | 2.8 km |
| Prologis Portside 2509 - SLSAV502 | 2 MW | 4.2 km |
| International Paper Savanna Mill | 71 MW | 7 km |
| Boulevard | retired | 12.9 km |
| Superior Landfill Gas Recovery | 6 MW | 17.6 km |