galena biomass project - alaska wood energy€¦ · log bunks positioned in harvest unit area, ~2-3...

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Galena Biomass Project

SustainableEnergyforGalena,Alaska

TIM KALKE

GENERAL MANAGER

• ProjectHistory• WoodFuelSupply• HeatingSystem

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Presentation Agenda

Anchorage

Fairbanks

Galena

SustainableEnergyforGalena,Alaska

Project History  FormerGalenaAirBase

•  OwnershiptransitiontoCityofGalena

•  RuralEnergyIssues•  Inefficientandaginginfrastructure•  Oldsteamdistributionsystemconsumed~230,000gallonsannually

•  Expensivedieselfuel

•  AlaskaEnergyAuthority–RenewableEnergyFundGrant

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Project History  FormerGalenaAirBase

•  ProjectFeasibilityStudies

•  Gana-A‘Yoo,LimitedForestStewardshipPlan

•  SteamUtilidorAssessment

•  ForestInventoryofGalenaWorkingCircle

•  EngineeringDesign

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Project History  TimberHarvestEntity

•  TheCityofGalena,GalenaCitySchoolDistrict(GCSD)andLoudenTribalCouncil(LTC)createdalocalnon-profitorganization,SustainableEnergyforGalena,Alaska(SEGA)taskedwithprovidingwoodfuelsupply

•  Gana-A‘Yoo,Limited,theCityofGalenaandSEGAenteredintoa20-yearTimberSaleAgreement

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Wood Fuel Supply

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 SEGA–OrganizedinFall2014

•  20-yearcontract•  4720acres•  Predominantlydeciduousspecies

•  Mixedconiferandhardwood

•  WinterTimberHarvest&ChipProcessing◦  (4successfulseasons)◦  Harvest25acres/year

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 HitachiZX200withWaratah622Bprocessor

Wood Fuel Supply

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 Logbunkspositionedinharvestunitarea,~2-3cordsperbunk

Wood Fuel Supply

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 JohnDeere748G-IIISkidder

Wood Fuel Supply

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 Log-landingspositionedontemporarytrail

Wood Fuel Supply

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 Peterbiltself-loadinglogtruck

Wood Fuel Supply

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Wood Fuel Supply  Oneseasonofpassivedryinghasresultedinanaverageof32%MoistureContent(MCwb)

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 BanditM1400knife-chipper

Wood Fuel Supply

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Wood Fuel Supply  BulkChipStorage,2-3weeksoffuelwhenfull

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Heating System

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 Day-bin,4-5daysworthoffuelwhenfull

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Heating System

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 Automatedauger,conveyorbeltandmetering-binfeedsystem

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Heating System

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 Burn-boxrearfeedsystemandfrontaccessdoor

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Heating System  FormerGalenaAirBase

•  2016SummerConstructionSeason

•  Installedheatdistributionandnewdomesticwaterline

•  Convertedexistingdieselboilersforhot-water/glycol,installed4.5MMBtuMessersmithburn-boxwithHurstBoilerandperformedseveraladditionalsupporttasks

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Heating System Convertfromasteamtohotwaterheatdistributionsystem

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Heating System Above-gradesegmentofdistributionlines,somesegmentsarebelow-grade

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Results

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 Est.16.5billionBtuHeatRequirement

 Annualaverages:

•  Oilused–40,000gallons(g)

•  Woodused-1600greentons(gt)

•  Oildisplaced-195,000g

•  Oildisplacedduetobiomass–95,000g

•  Newmoneyintroducedtolocaleconomy-$415,000

 PreviousSteamsystemused230,000g/year

 Systemimprovementsaloneprovide100,000gsavings.

•  CostofOil-$5.50/g

•  CostofWood-$259/gt

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