HomeMy WebLinkAboutE2-200608-BurroCreek_2MW_HydroProbableCost(FINAL)2 MW BURRO CREEK HYDRO PROJECT POLARCONSULT ALASKA, INC.
OPINION OF PROBABLE COST 5/31/2020
TASK ESTIMATED COST
2 MW PROJECT PERMITTING AND DESIGN $500,000
PHASE 1 CONSTRUCTION
CONTRACTOR MOBILIZATION / DEMOBILIZATION $300,000
ACCESS ROADS AND TRAILS $1,500,000
PHASE 1 CONSTRUCTION TOTAL $1,800,000
PHASE 2 CONSTRUCTION
CONTRACTOR MOBILIZATION / DEMOBILIZATION $300,000
DIVERSION AND INTAKE STRUCTURE $1,000,000
PENSTOCK (sized for upgrade to 7 MW)$2,900,000
POWERHOUSE (designed for upgrade to 7 MW)$800,000
TURBINE/GENERATOR/SWITCHGEAR/CONTROLS $2,100,000
ELECTRIC TRANSMISSION - ON SHORE BURRO CREEK $400,000
ELECTRIC TRANSMISSION - SUB CABLE TO SKAGWAY (sized for upgrade to 7 MW)$4,100,000
ELECTRIC TRANSMISSION - ON-SHORE CNXN TO APT/ FERRY DOCK $300,000
PHASE 2 CONSTRUCTION TOTAL $11,900,000
TOTAL CONSTRUCTION CONTRACT VALUE (PHASES 1 & 2)$13,700,000
CONSTRUCTION ADMINISTRATION / OVERHEAD
CONTRACT MANAGEMENT / ADMIN 5%$700,000
CONSTRUCTION ENGINEERING 5%$700,000
CONTINGENCY 25%$3,400,000
PRE-CONSTRUCTION COSTS (Design and permitting from above)$500,000
TOTAL ADMINISTRATION / OVERHEAD COSTS $5,300,000
TOTAL ESTIMATED CAPITAL COST FOR 2 MW ON-PROPERTY HYDRO PROJECT $19,000,000
7 MW PROJECT PERMITTING AND 35% DESIGN $600,000
TOTAL $19,600,000
UNIT COST METRIC FOR 2 MW HYDRO PROJECT $9,500 PER KW
COMPARABLE UNIT COST METRICS FOR RECENT ALASKA HYDRO PROJECTS
Year Project MW Cost per kW
2008 Kasidaya Creek (Skagway, AK) (does not include submarine cable cost)3.0 $3,300
2010 Falls Creek (Gustavus, AK)0.8 $10,600
2012 Southfork Eagle River (Eagle River, AK)1.1 $2,700
2016 Allison Creek (Valdez, AK)6.5 $8,500
Note: Comparable project costs have not been adjusted for inflation.