Somerset Plant

1329 Waterville Rd, Skowhegan, ME 4976

Plant Summary Information

Somerset Plant is ranked #16 out of 80 black liquor power plants nationwide in terms of total annual net electricity generation.

Somerset Plant is comprised of 2 generators and generated 138.2 GWh during the 3-month period between March 2025 to June 2025.

Plant NameSomerset Plant
Utility NameSappi Fine Paper North America-Somerset
LocationSomerset County, ME
Initial Operation DateJanuary 1976
Last Update Jun 2025
Annual Generation 574.0 GWh
Annual Consumption 21.2 M MMBtu
Ranked #1,171 out of 12,513 Power Plants Nationwide
Ranked #16 out of 80 Black Liquor Power Plants Nationwide
Ranked #4 out of 211 Maine Power Plants
Ranked #1 out of 3 Maine Black Liquor Power Plants
Fuel Types Black Liquor : 47.2% Wood/Wood Waste Solids : 37.2% Natural Gas : 6.7% Tire-derived Fuels : 5.8% Residual Fuel Oil : 2.2% Sludge Waste : 0.9%

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Monthly Net Generation for Somerset Plant

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Somerset Plant Details

Summary Information
Plant NameSomerset Plant (50406)
Plant Address1329 Waterville Rd, Skowhegan, ME 4976
UtilitySappi Fine Paper North America-Somerset (16190)
Latitude, Longitude44.70347, -69.64744
Generation Dates on FileJan 2001 to Jun 2025
Initial Operation DateJanuary 1976
Annual Generation 574.0 GWh
Fuel Types Black Liquor : 47.2% Wood/Wood Waste Solids : 37.2% Natural Gas : 6.7% Tire-derived Fuels : 5.8% Residual Fuel Oil : 2.2% Sludge Waste : 0.9%
 
Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration StatusYes
FERC Cogeneration Docket Number89-116-000
FERC Small Power Producer StatusNo
FERC Exempt Wholesale Generator StatusNo
Regulatory Information
Regulatory StatusNon-Regulated
NERC RegionNPCC
Balancing AuthorityISO New England Inc. (ISNE)
NAICS Code (322122)
Sector Industrial CHP (7)
Water SourceKennebec River
Ash Impoundment No
Transmission / Distribution OwnerCentral Maine Power Co (3266) ME
Grid Voltage 115.00 kV
Energy StorageNo
 
Natural Gas Information
Pipeline Name SUMMIT NATURAL GAS
Natural Gas StorageNo

Generator GEN1 Details Operating January 1976

TechnologyWood/Wood Waste Biomass
Prime MoverSteam Turbine
OwnershipSingle Owner
RTO ISO LMP Node Designation4156
RTO ISO Location Designation For Reporting Wholesale Sales Data4156
Nameplate Capacity45.9 MW
Nameplate Power Factor0.9
Summer Capacity48.8 MW
Winter Capacity48.8 MW
Minimum Load5 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateJanuary 1976
Combined Heat & Power Yes
Sector NameIndustrial CHP (7)
Topping Or BottomingT
Energy SourceBlack Liquor / Wood/Wood Waste Solids / Natural Gas / Tire-derived Fuels / Sludge Waste / Residual Fuel Oil
Startup SourceResidual Fuel Oil / Distillate Fuel Oil / Natural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Multiple FuelsYes
Cofire FuelsYes
Switch Between Oil And Natural GasYes
Multifuel Details
Cofire Energy SourceBLQ / WDS / RFO / TDF / SLW / NG
Switch When OperatingYes
Net Summer Capacity With Natural Gas48.8 MW
Net Winter Capacity With Natural Gas48.8 MW
Net Summer Capacity With Oil48.8 MW
Net Winter Capacity With Oil48.8 MW
Time To Switch From Gas To Oil6H
Time To Switch From Oil To Gas6H
Factors That Limit SwitchingYes
Other LimitsYes

Generator GEN2 Details Operating October 1990

TechnologyWood/Wood Waste Biomass
Prime MoverSteam Turbine
OwnershipSingle Owner
RTO ISO LMP Node Designation4156
RTO ISO Location Designation For Reporting Wholesale Sales Data4156
Nameplate Capacity61.2 MW
Nameplate Power Factor0.85
Summer Capacity51 MW
Winter Capacity51 MW
Minimum Load5 MW
Uprate/Derate Completed No
StatusOperating
First Operation DateOctober 1990
Combined Heat & Power Yes
Sector NameIndustrial CHP (7)
Topping Or BottomingT
Energy SourceBlack Liquor / Natural Gas / Wood/Wood Waste Solids / Tire-derived Fuels / Sludge Waste / Residual Fuel Oil
Startup SourceDistillate Fuel Oil / Residual Fuel Oil / Natural Gas
Solid Fuel Gasification No
Carbon Capture TechnologyNo
Time From Cold Shutdown To Full LoadOVER
Multiple FuelsYes
Cofire FuelsYes
Switch Between Oil And Natural GasYes
Multifuel Details
Cofire Energy SourceBLQ / WDS / RFO / TDF / SLW / NG
Switch When OperatingYes
Net Summer Capacity With Natural Gas51 MW
Net Winter Capacity With Natural Gas51 MW
Net Summer Capacity With Oil51 MW
Net Winter Capacity With Oil51 MW
Time To Switch From Gas To Oil6H
Time To Switch From Oil To Gas6H
Factors That Limit SwitchingYes
Other LimitsYes

Somerset Plant Plant Owners

Owner NameAddressGeneratorOwnership
We couldn't locate any owners for this plant

Power Plants with Similar Net Generation

Power plants with a similar annual net generation from Black Liquor.

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#6Jesup PlantJesup, GA466.5 GWh
#7International Paper Prattville MillPrattville, AL546.6 GWh
#8Flint River OperationsOglethorpe, GA433.9 GWh
#9Leaf River Cellulose LLCNew Augusta, MS413.1 GWh
#10Covington FacilityCovington, VA736.9 GWh
#11Fernandina Beach MillFernandina Beach, FL582.2 GWh
#12International Paper Georgetown MillGeorgetown, SC484.7 GWh
#13Sappi Cloquet MillCloquet, MN441.5 GWh
#14Mead Coated BoardMahrt, AL732.5 GWh
#15Georgia-Pacific Brewton MillBrewton, AL499.4 GWh
#17International Paper Riegelwood MillRiegelwood, NC313.1 GWh
#18Port Wentworth MillPort Wentworth, GA421.0 GWh
#19Georgia-Pacific Monticello PaperMonticello, MS550.2 GWh
#20International Paper Pine Hill MillPine Hill, AL475.7 GWh
#21Packaging Corp of AmericaCounce, TN427.7 GWh
#22Clearwater Paper IPP LewistonLewiston, ID426.1 GWh
#23WestRock (TX)Evadale, TX415.2 GWh
#24International Paper Red River MillCampti, LA370.6 GWh
#25Gaylord Container BogalusaBogalusa, LA426.2 GWh
#26Westrock Hodge (LA)Hodge, LA466.5 GWh

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