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HomeMy WebLinkAboutD - HBC AEA R3 Cost Work Sheet  Renewable Energy Fund Round 3 Project Cost/Benefit Worksheet   RFA AEA10-015 Application Cost Worksheet Page 1 10-7-09 Please note that some fields might not be applicable for all technologies or all project phases. The level of information detail varies according to phase requirements. 1. Renewable Energy Source The Applicant should demonstrate that the renewable energy resource is available on a sustainable basis. Annual average resource availability. Varies with stream flows, 4,000,000 kWh average. See attached hydrograph. Unit depends on project type (e.g. windspeed, hydropower output, biomasss fuel) 2. Existing Energy Generation and Usage a) Basic configuration (if system is part of the Railbelt 1 grid, leave this section blank) i. Number of generators/boilers/other 5 hydro turbines, 5 diesel generators ii. Rated capacity of generators/boilers/other 2 x 500kW Kato/Francis turbine (HBC), 1 x 250kW (HBC) Kato/Turgo turbine, 2 x 3,000 kW Gilkes turbines, 1 x EMD generator 2,500 kW, 1 x Fairbanks/Morse 2,403 kW generator, 2 x Caterpillar generator 1,090 kW. iii. Generator/boilers/other type See above iv. Age of generators/boilers/other All (HBC) generators and turbines re-built in 2006 v. Efficiency of generators/boilers/other Diesel efficiency is 13.65 kWh/gallon, 1999 – 2007 average. b) Annual O&M cost (if system is part of the Railbelt grid, leave this section blank) i. Annual O&M cost for labor $662,390 ii. Annual O&M cost for non-labor $595,486 c) Annual electricity production and fuel usage (fill in as applicable) (if system is part of the Railbelt grid, leave this section blank) i. Electricity [kWh] 24,969,557 kWh, 2002 – 2007 average ii. Fuel usage Diesel [gal] 841,763 gallons without Humpback Creek in service Other Water iii. Peak Load 6,136 kW (2007) iv. Average Load 3.069 kW (2007) v. Minimum Load 1,635 kW (five year minimum system load as of 10/5/08) vi. Efficiency Diesel efficiency is 13.65 kWh/gallon, 1999 – 2007 average. vii. Future trends Increasing peak demand and kWh in summer, decreasing in winter. d) Annual heating fuel usage (fill in as applicable) i. Diesel [gal or MMBtu] No data available to CEC. ii. Electricity [kWh] Very little, estimated less than 1% systemwide. iii. Propane [gal or MMBtu] No data available to CEC.                                                              1 The Railbelt grid connects all customers of Chugach Electric Association, Homer Electric Association, Golden Valley Electric  Association, the City of Seward Electric Department, Matanuska Electric Association and Anchorage Municipal Light and Power.      Renewable Energy Fund Round 3 Project Cost/Benefit Worksheet   RFA AEA10-015 Application Cost Worksheet Page 2 10-7-09 iv. Coal [tons or MMBtu] No data available to CEC. v. Wood [cords, green tons, dry tons] No data available to CEC. vi. Other N/A 3. Proposed System Design Capacity and Fuel Usage (Include any projections for continued use of non-renewable fuels) a) Proposed renewable capacity (Wind, Hydro, Biomass, other) [kWh or MMBtu/hr] 1,250 kWh b) Proposed Annual electricity or heat production (fill in as applicable) i. Electricity [kWh] 4,000,000 kWh ii. Heat [MMBtu] c) Proposed Annual fuel Usage (fill in as applicable) i. Propane [gal or MMBtu] ii. Coal [tons or MMBtu] iii. Wood [cords, green tons, dry tons] iv. Other 4. Project Cost a) Total capital cost of new system $14,031,000 million for engineering, new in-take and diversion b) Development cost $17,031,000 c) Annual O&M cost of new system $79,394 (savings of $65,406 over existing system) d) Annual fuel cost $50 annual water rights fee 5. Project Benefits a) Amount of fuel displaced for i. Electricity 293,040 gallons of diesel fuel ii. Heat iii. Transportation b) Price of displaced fuel $2.54/gallon x 293,040 = $744,322 saved annually c) Other economic benefits Reduced O&M, lower fuel surcharge to consumers, dramatically increased project life cycle d) Amount of Alaska public benefits Model for improved fuel efficiency in rural Alaska communities 6. Power Purchase/Sales Price a) Price for power purchase/sale CEC produces and sells power at published rates. See attached annual power cost summary.   Renewable Energy Fund Round 3 Project Cost/Benefit Worksheet   RFA AEA10-015 Application Cost Worksheet Page 3 10-7-09 7. Project Analysis a) Basic Economic Analysis Project benefit/cost ratio [$ 65,406 (O&M savings) + $744,322 (fuel savings)] x 50 year project life = $40,486,400 project life cycle savings / $17,031,000 project cost = 2.38 benefit to cost ratio Payback $17,031,000 project cost / $809,728 annual savings = 21.03 years for project payback.