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HomeMy WebLinkAboutD - AEA ORCA Costworksheet Renewable Energy Fund   Application Cost Worksheet Please note that some fields might not be applicable for all technologies or all project phases. 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. 6.7 percent of average diesel generation Unit depends on project type (e.g. windspeed, hydropower output, biomasss fuel) 2. Existing Energy Generation a) Basic configuration (if system is part of the Railbelt1 grid, leave this section blank) i. Number of generators/boilers/other 5 hydro turbines, 4 diesel generators ii. Rated capacity of generators/boilers/other 2 x 500kW Kato/Francis turbine, 1 x 250kW 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 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.                                                              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.  RFA AEA 09-004 Application Cost Worksheet revised 9/26/08 Page 1  Renewable Energy Fund   vii. Future trends Sharply 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. iv. Coal [tons or MMBtu] No data available to CEC. v. Wood [cords, green tons, dry tons] No data available to CEC. vi. Other 3. Proposed System Design: CEC Orca Power Plant, Heat Recovery Unit a) Installed capacity 240 kW b) Annual renewable electricity generation i. Diesel [gal or MMBtu] ii. Electricity [kWh] Avg. heat recovery capacity of .067 x .8 x 240 kW / 3,560 kW (new generator) = 878,641 kWh iii. Propane [gal or MMBtu] iv. Coal [tons or MMBtu] v. Wood [cords, green tons, dry tons] vi. Other 4. Project Cost a) Total capital cost of new system $1,780,000 (AEA request) b) Development cost $5,260,000 (total project cost) c) Annual O&M cost of new system d) Annual fuel cost 5. Project Benefits a) Amount of fuel displaced for i. Electricity 129,000 gallons of diesel ii. Heat iii. Transportation b) Price of displaced fuel $3.87/gallon x 129,000 = $ 516,000 saved annually c) Other economic benefits Improved air quality, lower fuel surcharge to consumers d) Amount of Alaska public benefits Model for improved fuel efficiency in rural Alaska communities RFA AEA 09-004 Application Cost Worksheet revised 9/26/08 Page 2  Renewable Energy Fund   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. 7. Project Analysis a) Basic Economic Analysis Project benefit/cost ratio $ 12,975,000 (fuel saved over life of generator, approx. 25 years) / $1,780,000 (heat recovery unit cost) = 7 project benefit to cost ratio Payback $ 5,260,000 (Orca Power Plant upgrade cost) / $519,000 (annual savings) = 10 years for project payback. RFA AEA 09-004 Application Cost Worksheet revised 9/26/08 Page 3