HomeMy WebLinkAboutGastineau AEA Costworksheet3Renewable 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. 11,282,880 MBtu max. output for geothermal loopfield
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 Railbelt1 grid, leave this section blank)
i. Number of generators/boilers/other 2 oil heat boilers
ii. Rated capacity of generators/boilers/other 2,678 MBH and 2,479 MBH
iii. Generator/boilers/other type horizontal, fire tube, oil-fired boilers
iv. Age of generators/boilers/other 44 years and 52 years
v. Efficiency of generators/boilers/other ~75 to 80% efficiency and ~55 to 60% efficiency
b) Annual O&M cost – based on costs associated with fully renovated facility
i. Annual O&M cost for labor ~$3,000 for oil boilers
ii. Annual O&M cost for non-labor ~$37,500 (oil and miscellaneous parts)
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 [kW h] GSHP eliminates ~653,000 kW h from electric heat system*
ii. Fuel usage
Diesel [gal] GSHP eliminates ~28,000 gallons from oil heat system*
Other *Note that GSHP system eliminates oil or electricity (not both) based on
comparison with each heat system option for fully renovated facility.
iii. Peak Load 1,288 MBH
iv. Average Load 575 MBH based on 9 month/year operation
v. Minimum Load 0 MBH – minimal use of system during summer when school closed
vi. Efficiency Oil ~80% efficient : Electric ~95% efficient : GSHP ~320% efficient
vii. Future trends
d) Annual heating fuel usage (fill in as applicable)
i. Diesel [gal or MMBtu] ~28,000 gallons from oil heat system*
ii. Electricity [kW h] ~653,000 kW h from electric heat system*
iii. Propane [gal or MMBtu]
iv. Coal [tons or MMBtu]
v. Wood [cords, green tons, dry tons]
vi. Other
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Renewable Energy Fund Round 3
Project Cost/Benefit Worksheet
RFA AEA10-015 Application Cost Worksheet Page 2 10-7-09
3. Proposed System Design Capacity and Fuel Usage
(Include any projections for continued use of non-renewable fuels)
Proposed renewable capacity
(Geothermal, MMBtu/hr] 1,288,000 MBH max. output for geothermal loopfield,
b) Proposed Annual electricity or heat production (fill in as applicable)
i. Electricity [kWh] This project will not produce electricity
ii. Heat [MMBtu] 3,773 MMBtu, based on school operating hours
c) Proposed Annual fuel Usage (fill in as applicable)
i. Propane [gal or MMBtu] 0
ii. Coal [tons or MMBtu] 0
iii. Wood [cords, green tons, dry tons] 0
iv. Other ~$23,000 for electricity for heat pump system
4. Project Cost
a) Total capital cost of new system $1,061,235
b) Development cost $188,765
c) Annual O&M cost of new system $26,633
d) Annual fuel cost ~237,000 kWh for electricity for heat pump system
5. Project Benefits
a) Amount of fuel displaced for
i. Electricity 0
ii. Heat 27,952 gallons heating fuel
iii. Transportation 0
b) Price of displaced fuel $63,450
c) Other economic benefits Estimated $49,000 annual health benefit
d) Amount of Alaska public benefits Electric infrastructure relief : independence from oil : Reduce
pollution : GSHP education
6. Power Purchase/Sales Price
a) Price for power purchase/sale $.097/kW h : no power sales from this project
7. Project Analysis
a) Basic Economic Analysis: energy savings $/development $ -OR- total benefit $/total project $
Project benefit/cost ratio $36,817 annually/$1,061,235 -OR- $86,000 annually/$1,250,000
Payback 28.82 years -OR- 14.53 years