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Home My WebLink AboutAttach 9_Northway Fuel usage Historical SummariesWood Boiler System Integration Alaska Gateway School District Northway School Northway, Alaska Historical Fuel Oil Use Summary School Garage Duplex Fiscal Yr Gallons $/gallon $ Total Gallons $/gallon $ Total Gallons $/gallon $ Total FY14 19,008 $3.68 $69,726 741 $3.72 $2,757 578 $3.72 $2,155 FY15 26,890 $3.58 $96,827 1,017 $3.78 $3,934 525 $3.48 $1,795 FY16 33,042 $2.43 $79,658 443 $2.80 $1,244 0 $0.00 $0 FY17 20,690 $2.17 $45,034 730 $3.05 $2,242 1,100 $3.03 $3,335 FY18 24,959 $2.96 $72,716 760 $3.35 $2,566 0 $0.00 $0 Average 24,918 $2.92 $72,792 738 $3.45 $2,549 551 $3.31 $1,821.28 Total Site Average: 26,207 Gallons Heating Equipment Summary Output Building Equipment Fuel MBH School Boiler 1 Fuel Oil 1,517 Boiler 2 Fuel Oil 1,517 DWH Fuel Oil 1,000 Total 4,034 Garage Furnace Fuel Oil 105.0 Duplex Boiler Fuel Oil 148.0 Heating Load Summary Heating Heating Building Heating Load Estimated Load Area Output Index Peak Load Index Building Sq. Ft. Btu/hr Btu/hr/SF Btu/hr Btu/hr/SF School 27,740 3,034,000 109.4 1,800,000 64.9 Garage 1,388 105,000 75.6 52,000 37.5 Duplex 2,000 148,000 74.0 60,000 30.0 CTA Architects Engineers December 14, 2017 Wood Boiler System Integration Alaska Gateway School District Northway School Northway, Alaska Annual Energy Use and Potential Wood Fuel Use Summary Avg. Current Current Building Annual Fuel Estimate Area Heating Fuel Cost Annual Building Sq. Ft. Energy units $/Unit Cost School 27,740 25,000 Gal $3.00 $75,000 Garage 1,388 740 Gal $3.00 $2,220 Duplex 2,000 550 Gal $3.00 $1,650 Totals 31,128 26,290 Gal $78,870 Chips/Ground Fuel Gross Building Gross Gross Wood Energy Energy Est. Energy Heating Est. Energy Energy Fuel Convers. Use Boiler Use EUI Boiler Use Convers. Use Building Btu/unit Therms Eff. Therms kBtu/SF Eff. Therms Btu/lb tons School 138,500 34,625 0.82 28,393 124.8 0.65 43,681 5,712 382.4 Garage 138,500 1,025 0.82 840 73.8 0.65 1,293 5,712 11.3 Duplex 138,500 762 0.82 625 38.1 0.65 961 5,712 8.4 Estimated Wood Boiler Size and Fraction of Total Energy Biomass Boiler Fraction Size of Total Btu/hr Energy 400,000 0.685 500,000 0.749 600,000 0.798 700,000 0.843 800,000 0.887 850,000 0.903 900,000 0.917 1,000,000 0.936 Based on Temperature Bin Energy Estimation CTA Architects Engineers December 14, 2017