Riverwood International Macon Mill

🌿 BiomassIndustrial CHP73 MW capacity

78th largest plant in Georgia · 3122nd nationally

Riverwood International Macon Mill is a biomass power plant in Georgia with a nameplate capacity of 73.4 MW. It generates roughly 359.3k MWh per year — enough to power about 34,220 average U.S. homes.

Its capacity factor of 56% puts it in the middle range — running steadily but not full-time. At 73 lb CO₂/MWh, its emission rate sits below the national grid average of roughly 800 lb/MWh.

PeakingMid-meritBaseload0%40%80%100%56%
Mid-merit — steady but not full-time

Month by month in 2024

100% capacity0Jan: 29.3k MWh (54% of capacity)JFeb: 31.2k MWh (63% of capacity)FMar: 34.0k MWh (62% of capacity)MApr: 42.0k MWh (80% of capacity)AMay: 33.2k MWh (61% of capacity)MJun: 35.2k MWh (67% of capacity)JJul: 28.7k MWh (52% of capacity)JAug: 38.7k MWh (71% of capacity)ASep: 34.8k MWh (66% of capacity)SOct: 32.7k MWh (60% of capacity)ONov: 18.9k MWh (36% of capacity)NDec: 23.5k MWh (43% of capacity)D

Ghost bars are each month's theoretical maximum (73.4 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.

Capacity73 MWnameplate
Annual Generation359.3k MWhEPA eGRID
Capacity Factor56%of theoretical max
Annual CO₂13.1kmetric tons

Location

Plant NameRiverwood International Macon Mill
OperatorRiverwood Intl Usa Inc
CityMacon
CountyBibb County
StateGeorgia
ZIP31206
Coordinates32.77140, -83.62810

This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.

Natural GasCoalOilSolarBiomass

Generators (5)

IDTechnologyFuelCapacityStatusOnline
0005Wood/Wood Waste BiomassWood/Wood Waste40.0 MWOperating2013
0004Wood/Wood Waste BiomassBlack Liquor15.9 MWOperating1981
0001Wood/Wood Waste BiomassBlack Liquor12.8 MWOperating1948
0002Wood/Wood Waste BiomassBlack Liquor5.0 MWOperating1948
0003Wood/Wood Waste BiomassBlack Liquor5.0 MWOut of Service1948

Emissions (annual)

CO₂13.1k metric tons
SO₂288 metric tons
NOₓ160 metric tons
CO₂ Rate73 lb/MWh
This plant72 lb/MWhU.S. grid average800 lb/MWhNatural gas combined-cycle average900 lb/MWhCoal plant average2,100 lb/MWh

Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.

Grid context

NERC RegionSERC
Balancing AuthoritySouthern Company Services, Inc. - Trans

About Biomass plants

Biomass plants burn wood, agricultural waste, or methane from landfills to generate steam and electricity. They are considered carbon-neutral over long timescales when fuel is sustainably sourced, but they produce particulate emissions similar to coal.

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