#ESI! 2.0 Economic Analysis: Detailed Analysis 0 Contributors are listed in manuals Solar Energy Laboratory, University of Wisconsin - Madison 1 2 32 TRNSYS v7.0 CMR October 2004 1 noowner __ __ __ 3 TYPE 29 is called only twice in each simulation, once at the beginning of the simulation to check its parameter list, and again at the end to perform a standard life cycle cost analysis based on the simulation of one year of solar system operation. It compares the capital and back-up fuel costs of a solar system to the fuel costs of a conventional non-solar system. It is assumed that the solar back-up system is identical to the conventional heating system, in that only the incremental costs of adding solar to the conventional system are considered. The detail of the economic output is dependent on the mode and parameters used. In this instance (Mode 2) various economic parameters are used to calculate the yearly cash flows, life cycle costs, life cycle savings and payback periods. It also provides the user with options to calculate the rate of return on the solar investment, to consider income producing buildings, and to include federal and state tax credits. 0 0 0 0 0 0 __ __ __ 1 0 __ __ __ __ 0 0 __ .\SourceCode\Types\Type29.for __ __ __ 34 1st year auxiliary cost SN 1 The integrated cost ($) of the auxiliary (back up) system for thefirst year. simple real 1 + 0.0 +Inf [ ; ] 0.0 0.0 - Dimensionless 1st year load cost SN 1 The integrated cost of the total load for the first year i.e., thetotal fuel cost if the solar system was not used ($). simple real 1 + 0.0 +Inf [ ; ] 0.0 0.0 - Dimensionless First year load SN 1 The total load for the firt year of operation. simple real 1 + 0.0 +Inf [ ; ] 0.0 0.0 kJ Energy Economic analysis mode SN 1 This parameter indicates to the general economics component that thedetailed analysis method should be used to evaluate the inputs. simple integer 3 + 2 2 [ ; ] 2 2 - Dimensionless Collector area SN 1 The area of the solar collector array. simple real 3 + 0.0 +Inf [ ; ] 50.0 50.0 m^2 Area Area dependent costs SN 1 The total area dependent costs for the solar system ($/m^2). These costs include the cost of the collector and part of the cost of thethermal storage equipment. simple real 3 + 0.0 +Inf [ ; ] 200.0 200.0 - dimensionless Fixed costs SN 1 The total cost ($) of the equipment which is independent of thecollector area. Examples are costs for piping or ducts, controls,blowers, etc simple real 3 + 0.0 +Inf [ ; ] 4000.0 4000.0 - dimensionless Performance degradation SN 1 The percentage of thermal degradation per year of the solar system(percent per year). simple real 3 + 0.0 100.0 [ ; ] 5.0 5.0 - dimensionless Period of analysis SN 1 The period of economic analysis (in years) that is to be used inevaluating the solar system. simple real 3 + 1.0 +Inf [ ; ] 20.0 20.0 - dimensionless Down payment SN 1 What percentage of the total system investment was given as a downpayment for the purchase of the system. simple real 3 + 0.0 100.0 [ ; ] 20.0 20.0 - dimensionless Mortgage interest rate SN 1 The interest rate on the mortgage for the solar system (percent peryear). simple real 3 + 0.0 +Inf [ ; ] 9.0 9.0 - dimensionless Term of loan SN 1 The period of the loan taken out for the solar system (years). simple real 3 + 0.0 +Inf [ ; ] 10.0 10.0 - dimensionless Market discount rate SN 1 The nominal market discount rate. simple real 3 + 0.0 +Inf [ ; ] 6.0 6.0 - dimensionless Extra costs in year 1 SN 1 The extra insurance, maintenance, etc. required by the solar systemin the first year expressed as a perentage of the initial investment. simple real 3 + 0.0 +Inf [ ; ] 5.0 5.0 - dimensionless Inflation rate SN 1 The general inflation rate (percentage). simple real 3 + 0.0 100.0 [ ; ] 2.0 2.0 - dimensionless Income tax rate SN 1 The effective combined federal and state income tax rate (percentage).This income tax rate is assumed constant through the analysis. simple real 3 + 0.0 100.0 [ ; ] 45.0 45.0 - dimensionless Property taxes SN 1 The true property tax rate per dollar of original investment(percentage). simple real 3 + 0.0 +Inf [ ; ] 5.0 5.0 - dimensionless Propert tax increase SN 1 The property tax inflation rate (percent per year). simple real 3 + 0.0 +Inf [ ; ] 1.0 1.0 - dimensionless Calculate rate of return? SN 1 Should the economics rotuine calculate the rate of return on thesolar investment. 1 ---> Calculate the rate of return 2 ---> Don't calculate the rate of return simple integer 3 + 1 2 [ ; ] 1 1 - dimensionless Resale value SN 1 The ratio of salvage value to the initial investment expressed as apercentage. simple real 3 + 0.0 +Inf [ ; ] 20.0 20.0 - dimensionless Income producing building? SN 1 Is the building on which the solar system investment was made anincome producing building? In other words, is thi building a commercial building or a non-commercial building? 0 ---> Non-commercial building 1 ---> Commercial building simple integer 3 + 1 2 [ ; ] 2 2 - dimensionless Depreciation scheme SN 1 Which depreciation scheme is to be used on the investment? 1 ---> Straight line 2 ---> Declining balance 3 ---> Sum of years digits 4 ---> None simple integer 3 + 1 4 [ ; ] 1 1 - dimensionless Percent of straight line SN 1 If the depreciation schedule was specified as declining balancedepreciation, what percentage of straight line depreciation should beused? simple real 3 + 0.0 +Inf [ ; ] 80.0 80.0 - dimensionless Useful life SN 1 What is the useful life of the equipment for depreciation purposes(years)? simple real 3 + 0.0 +Inf [ ; ] 8.0 8.0 - dimensionless Auxiliary fuel inflation rate SN 1 The inflation rate of the fuel used in the auxiliary (backup) system(percent per year). simple real 3 + 0.0 +Inf [ ; ] 2.0 2.0 - dimensionless Fuel inflation rate SN 1 The inflation rate of the fuel used in the conventional system(percent per year). simple real 3 + 0.0 +Inf [ ; ] 3.0 3.0 - dimensionless Economic output SN 1 What type of economic output is desired: 1 ---> Print out results yearly 2 ---> Print only the cumulative results simple integer 3 + 1 2 [ ; ] 1 1 - dimensionless List the parameters? SN 1 Should the economic output include a listing of the parameters usedin the analysis? 1 ---> Print the parametrs 2 ---> Do not print the parameters simple integer 3 + 1 2 [ ; ] 1 1 - dimensionless Consider federal tax credits? SN 1 Should the economic analysis consider federal tax credits? 1 ---> Consider federal tax credits 2 ---> Do not consider federal tax credits simple integer 3 + 1 2 [ ; ] 2 2 - dimensionless State tax credit in tier 1 SN 1 The state tax credit in tier 1 (percent). simple real 3 + 0.0 +Inf [ ; ] 5.0 5.0 - dimensionless State tax credit in tier 2 SN 1 The state tax credit in tier two (percent). simple real 3 + 0.0 +Inf [ ; ] 3.0 3.0 - dimensionless Tier 1 break SN 1 The break between the first and second tiers of the state tax creditsystem (dollars). simple real 3 + 0.0 +Inf [ ; ] 5000 5000 - dimensionless Maximum credit point SN 1 The maximum amount of purchase that is eligible for a state taxcredit (dollars). simple real 3 + 0.0 +Inf [ ; ] 10000 10000 - dimensionless Logical unit number for output file SN 1 simple integer 3 + 30 30 [ ; ] 30 0 - dimensionless 0 1 .\trnsys 16\readme.html 0 0 0 *** trnModel specific properties *** 5 29 df /c 0 0 0 0 0 6 Output file to print the results 0 Logical unit number for output file 0 0 0 0 31 Economic analysis mode Collector area Area dependent costs Fixed costs Performance degradation Period of analysis Down payment Mortgage interest rate Term of loan Market discount rate Extra costs in year 1 Inflation rate Income tax rate Property taxes Propert tax increase Calculate rate of return? Resale value Income producing building? Depreciation scheme Percent of straight line Useful life Auxiliary fuel inflation rate Fuel inflation rate Economic output List the parameters? Consider federal tax credits? State tax credit in tier 1 State tax credit in tier 2 Tier 1 break Maximum credit point Logical unit number for output file 0 0 2 0 1 50 -1 -1 0 1 50 0 30 0 1 50 -1 -1 0 1 50