A User's Manual for DELSOL3 - prod.sandia.gov - Sandia National ...

where Annual Energy = Net electric annual energy as described
in Section 1II.H
FCR = fixed charge rate, i.e., annual charge against the
capital investment to account for returns to
shareholders, taxes and insurance, depreciation,
debt cost, and discount rate
O&MH,LEV = levelized heliostat O&M rate
CCST-U~,H = heliostat subsystem capital investment at startup
(includes land and wiring)
O&MBAL,LEV = levelized balance of plant O&M rate
CCST-UP,BAL = balance of plant capital investment at startup
V.B-I. Fixed Charge Rate-The user is allowed one of two options for deter-
the fixed charge rate, FCR:
IFCR = 0-user specified value of FCR. In this case, the values of DISRT,
RINF, and NYOP still need to be specified correctly for use in calculating
O&M rates.
IFCR # 0-FCR is calculated by DELSOL based on user supplied values
of economic parameters.
FCR = PTI +
(1.0 - ITC) - (ITR x DEP)
(1.0 - ITR)fDIs
where PTI = annual property tax and insurance rate
ITC = investment tax credit
ITR = income tax rate
DEP = depreciation allowance, discussed below
fDIS = discount factor, discussed below.
(V.B - 4)
With option b) above (IFCRZO), the user is allowed one of two choices for
calculating the depreciation allowance:
136
1) IDEP = 1-straight line schedule:
where YDEP = depreciation life of the solar plant (years)
rDIS = discount rate, discussed below.
2) IDEP = 2-sum-of-years digits schedule:
(V.B - 5)