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HomeMy WebLinkAboutGalena Community Wood Heat Project presentation est 2014 REF Grant 70609271 Galena Biomass Project Sustainable Energy for Galena, Alaska TIM KALKE GENERAL MANAGER •Project History •Wood Fuel Supply •Heating System 2 Presentation Agenda Anchorage Fairbanks Galena Sustainable Energy for Galena, Alaska Project History Former Galena Air Base •Ownership transition to City of Galena •Rural Energy Issues •Inefficient and aging infrastructure •Old steam distribution system consumed ~230,000 gallons annually •Expensive diesel fuel •Alaska Energy Authority –Renewable Energy Fund Grant 3Sustainable Energy for Galena, Alaska Project History Former Galena Air Base •Project Feasibility Studies •Gana-A ‘Yoo, Limited Forest Stewardship Plan •Steam Utilidor Assessment •Forest Inventory of Galena Working Circle •Engineering Design 4Sustainable Energy for Galena, Alaska 5Sustainable Energy for Galena, Alaska Project History Timber Harvest Entity •The City of Galena, Galena City School District (GCSD) and Louden Tribal Council (LTC) created a local non-profit organization, Sustainable Energy for Galena, Alaska (SEGA) tasked with providing wood fuel supply •Gana-A ‘Yoo, Limited, the City of Galena and SEGA entered into a 20- year Timber Sale Agreement 6Sustainable Energy for Galena, Alaska Wood Fuel Supply 7 SEGA –Organized in Fall 2014 •20-year contract •4720 acres •Predominantly deciduous species •Mixed conifer and hardwood •Winter Timber Harvest & Chip Processing ◦(4 successful seasons) ◦Harvest 25 acres/year Sustainable Energy for Galena, Alaska 8Sustainable Energy for Galena, Alaska 9 Hitachi ZX200 with Waratah 622B processor Wood Fuel Supply Sustainable Energy for Galena, Alaska 10 Log bunks positioned in harvest unit area, ~2-3 cords per bunk Wood Fuel Supply Sustainable Energy for Galena, Alaska 11 John Deere 748G-III Skidder Wood Fuel Supply Sustainable Energy for Galena, Alaska 12 Log-landings positioned on temporary trail Wood Fuel Supply Sustainable Energy for Galena, Alaska 13 Peterbilt self-loading log truck Wood Fuel Supply Sustainable Energy for Galena, Alaska 14 Wood Fuel Supply One season of passive drying has resulted in an average of 32% Moisture Content (MCwb) Sustainable Energy for Galena, Alaska 15 Bandit M1400 knife-chipper Wood Fuel Supply Sustainable Energy for Galena, Alaska 16 Wood Fuel Supply Bulk Chip Storage, 2-3 weeks of fuel when full Sustainable Energy for Galena, Alaska Heating System 17 Day-bin, 4-5 days worth of fuel when full Sustainable Energy for Galena, Alaska Heating System 18 Automated auger, conveyor belt and metering-bin feed system Sustainable Energy for Galena, Alaska Heating System 19 Burn-box rear feed system and front access door Sustainable Energy for Galena, Alaska Heating System Former Galena Air Base •2016 Summer Construction Season •Installed heat distribution and new domestic water line •Converted existing diesel boilers for hot-water/glycol, installed 4.5 MMBtu Messersmith burn-box with Hurst Boiler and performed several additional support tasks 20Sustainable Energy for Galena, Alaska Heating System Convert from a steam to hot water heat distribution system 21Sustainable Energy for Galena, Alaska Heating System Above-grade segment of distribution lines, some segments are below-grade 22Sustainable Energy for Galena, Alaska Results 23 Est. 16.5 billion Btu Heat Requirement Annual averages: •Oil used –40,000 gallons (g) •Wood used -1600 green tons (gt) •Oil displaced -195,000 g •Oil displaced due to biomass –95,000 g •New money introduced to local economy - $415,000 Previous Steam system used 230,000 g/year System improvements alone provide 100,000 g savings. •Cost of Oil -$5.50/g •Cost of Wood -$259/gt Sustainable Energy for Galena, Alaska 24